Journal articles: 'Communications and networks technologies'

1

Kišić, Alen. "Information and Communications Technologies as a Driver of Effective Internal Communication." Open Journal for Information Technology 3, no. 2 (December 1, 2020): 39–52. http://dx.doi.org/10.32591/coas.ojit.0302.01039k.

Full text

Abstract:

Internal communication is considered to be fundamental process for organization. The information and communication technology (ICT) has been a strong trigger of organizational change in every aspect, as well as in internal communication. This paper investigates ICT tools usage effects on internal communication. Three research hypothesis were set up: (i) employees’ perceived importance of internal communication has a relationship with their ICT usage, (ii) employees’ perceived quality of internal communication has a relationship with their ICT usage, and (iii) ICT tools usage contributes to the perceived impact of IT on informing, motivation, productivity, loyalty, organizational development understanding, reducing rumors within organization of employees, willingness to change and overall satisfaction of employees. In order to test hypothesis, data were collected via an online survey conducted among Croatian public relations experts. Data mining was applied in data analysis: including both, descriptive (distributions) and predictive models (Bayesian networks). Sensitivity analysis of Bayesian networks identified significant factors of successful internal communication. Results showed that Skype usage mostly contributed to the quality of internal communication, whereas social network usage mostly contributed to the perceived importance of internal communication. Bayesian network model identified e-mail usage as a predictor of employees informing and chat usage as predictor for productivity of employees. Organizations’ management should embrace opportunities that new technologies have brought to the field of internal communications and use it as a tool for improvement.

APA, Harvard, Vancouver, ISO, and other styles

2

Xu, Chang Fu, Bin Bo, and Yong He. "Distribution Automation Oriented Research on the Adaptability of the Communication Network Technologies." Applied Mechanics and Materials 713-715 (January 2015): 946–49. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.946.

Full text

Abstract:

The traffic of the distribution automation communication network under different size and applications is analyzed based on the communications models. From the network availability and the resource utilization, the distribution automation adaptability is compared with the different communication networks combined with the current main power terminal communication network technologies. The results provide an important theoretical basis for the planning of the distribution automation communication network.

APA, Harvard, Vancouver, ISO, and other styles

3

Carreras-Coch, Anna, Joan Navarro, Carles Sans, and Agustín Zaballos. "Communication Technologies in Emergency Situations." Electronics 11, no. 7 (April 6, 2022): 1155. http://dx.doi.org/10.3390/electronics11071155.

Full text

Abstract:

Emergency situations such as wildfires, water floods, or even terrorist attacks require continuous communication between the coordination centres, the several on-the-field teams, and their respective devices to properly address the adverse circumstances. From a technological point of view, this can be best seen as a live Ubiquitous Sensor Network—composed of human beings (e.g., first responders, victims) and devices (e.g., drones, environmental sensors, radios)—with stringent and special communication requirements in terms of flexibility, mobility, reliability, bandwidth, heterogeneity, and speed of deployment. However, for this specific use case, most of the already deployed and well-known communication technologies (e.g., satellite, 4G/5G) might become unusable and hard to repair due to the associated effects of the disaster itself. The purpose of this paper is (1) to review the emergency communications challenges, (2) to analyse the existing surveys on technologies for emergency situations, (3) to conduct a more updated, extensive, and systematic review of the emergency communications’ technologies, and (4) to propose a heterogeneous communication architecture able to communicate between moving agents in harsh conditions. The proposed approach is conceived to link the relocating agents that constitute a Ubiquitous Sensor Network spanning a large-scale area (i.e., hundreds of square kilometres) by combining Near Vertical Incidence Skywave technologies with Drone-Based Wireless Mesh Networks. The conclusions derived from this research aim to set up the fundamentals of a rapidly deployable Emergency Communications System inspired by the Ubiquitous Sensor Network paradigm.

APA, Harvard, Vancouver, ISO, and other styles

4

Hagiwara, Hiroaki, and Kenichi Takizawa. "Advanced Hospital Networks Using Wireless Communications Technologies." IEICE Communications Society Magazine 5, no. 1 (2011): 13–20. http://dx.doi.org/10.1587/bplus.5.13.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Javornik, Tomaž, Andrej Hrovat, and Aleš Švigelj. "Radio Technologies for Environment-Aware Wireless Communications." WSEAS TRANSACTIONS ON COMMUNICATIONS 21 (December 31, 2022): 250–66. http://dx.doi.org/10.37394/23204.2022.21.30.

Full text

Abstract:

The contemporary wireless transmitter in addition to information symbols transmits also training symbols in order to help the receivers in the estimation of the information symbols by estimating the channel state information (CSI). In this paper, we look at existing wireless communication technologies in light of environment-aware wireless communications, which is a new concept of wireless communications that queries the time-invariant CSI from the local or global database, using information about the transmitter and receiver location. Thus, this study is the first critical review of the potential of today’s terrestrial wireless communication systems including wireless cellular technologies (GSM, UMTS, LTE, NR), wireless local area networks (WLANs), and wireless sensor networks (WSNs), for estimating CSI, the ratio between training and information symbols and the rate of channel variation, and the potential use of time invariable CSI in environment aware wireless communications. The research reveals, that early communication systems provide means for narrowband channel estimation and the CSI is only available as channel attenuation based on signal level measurements. By increasing the frequency bandwidth of communications, the CSI is estimated in some form of channel impulse response (CIR) in almost all currently used radio technologies, but this information is generally not available outside the communication systems. Also, the CSI is estimated only for the channel with active communications. The new radio technology (NR) offers the possibility of estimating the CIR for non-active channels as well, and thus the possibility of initiating environmentally aware wireless communications.

APA, Harvard, Vancouver, ISO, and other styles

6

Heikkilä, Marjo, Jani Suomalainen, Ossi Saukko, Tero Kippola, Kalle Lähetkangas, Pekka Koskela, Juha Kalliovaara, et al. "Unmanned Agricultural Tractors in Private Mobile Networks." Network 2, no. 1 (December 30, 2021): 1–20. http://dx.doi.org/10.3390/network2010001.

Full text

Abstract:

The need for high-quality communications networks is urgent in data-based farming. A particular challenge is how to achieve reliable, cost-efficient, secure, and broadband last-mile data transfer to enable agricultural machine control. The trialed ad hoc private communications networks built and interconnected with different alternative wireless technologies, including 4G, 5G, satellite and tactical networks, provide interesting practical solutions for connectivity. A remotely controlled tractor is exemplified as a use case of machine control in the demonstrated private communication network. This paper describes the results of a comparative technology analysis and a field trial in a realistic environment. The study includes the practical implementation of video monitoring and the optimization of the control channel for remote-controlled unmanned agricultural tractors. The findings from this study verify and consolidate the requirements for network technologies and for cybersecurity enablers. They highlight insights into the suitability of different wireless technologies for smart farming and tractor scenarios and identify potential paths for future research.

APA, Harvard, Vancouver, ISO, and other styles

7

Beshley, H., Y. Shkoropad, M. Beshley, and M. Klymash. "CONVERGENCE OF HETEROGENEOUS WIRELESS NETWORKS FOR FUTURE COMMUNICATIONS: ARCHITECTURE, QOS AND RESOURCE MANAGEMENT." Information and communication technologies, electronic engineering 2, no. 2 (December 2022): 20–32. http://dx.doi.org/10.23939/ictee2022.02.020.

Full text

Abstract:

Scientific and theoretical approaches to the implementation of a heterogeneous mobile communication network based on SDN/NFV and SDR technologies are described. The architecture of the future heterogeneous network is proposed, taking into account the evolution of emerging standards and key technologies. An algorithm for dynamic bandwidth allocation and reservation between several logical channels at a certain moment of time to provide QoS for information flows in future networks is created. A simulation model of network traffic service with parameters corresponding to real networks has been made. The study of femtocell SDR load, as the main convergent device at the level of heterogeneous network access by users of different generation mobile communication technologies has been conducted.

APA, Harvard, Vancouver, ISO, and other styles

8

Manoufali, Mohamed, Hamada Alshaer, Peng-Yong Kong, and Shihab Jimaa. "An Overview of Maritime Wireless Mesh Communication Technologies and Protocols." International Journal of Business Data Communications and Networking 10, no. 1 (January 2014): 1–29. http://dx.doi.org/10.4018/ijbdcn.2014010101.

Full text

Abstract:

Maritime wireless mesh networks (MWMNs) are conceived to provide network connectivity for maritime users and enable them to communicate with correspondent users connected to terrestrial communication networks. The high cost and low data-rate of satellite and other legacy maritime communication technologies and systems deployed in MWMNs pose major limitation to establish reliable and affordable maritime communications. In addition, the design of routing protocols in MWMNs remains a significant challenge due to the lack of reliable communication infrastructure and complexity of maritime environment. This paper explains the existing maritime communication technologies and routing protocols which could be deployed in implementing reliable MWMNs. Comprehensive guidelines are outlined to easily understand and critically assess the different deployed maritime communication networks and systems with routing protocols, and identify the milestones in the process of developing and implementing broadband MWMNs.

APA, Harvard, Vancouver, ISO, and other styles

9

PARR, G. "Military communications systems and technologies." Computer Networks 46, no. 5 (December 5, 2004): 575–79. http://dx.doi.org/10.1016/s1389-1286(04)00218-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Le, Nam Tuan, Mohammad Arif Hossain, Amirul Islam, Do-yun Kim, Young-June Choi, and Yeong Min Jang. "Survey of Promising Technologies for 5G Networks." Mobile Information Systems 2016 (2016): 1–25. http://dx.doi.org/10.1155/2016/2676589.

Full text

Abstract:

As an enhancement of cellular networks, the future-generation 5G network can be considered an ultra-high-speed technology. The proposed 5G network might include all types of advanced dominant technologies to provide remarkable services. Consequently, new architectures and service management schemes for different applications of the emerging technologies need to be recommended to solve issues related to data traffic capacity, high data rate, and reliability for ensuring QoS. Cloud computing, Internet of things (IoT), and software-defined networking (SDN) have become some of the core technologies for the 5G network. Cloud-based services provide flexible and efficient solutions for information and communications technology by reducing the cost of investing in and managing information technology infrastructure. In terms of functionality, SDN is a promising architecture that decouples control planes and data planes to support programmability, adaptability, and flexibility in ever-changing network architectures. However, IoT combines cloud computing and SDN to achieve greater productivity for evolving technologies in 5G by facilitating interaction between the physical and human world. The major objective of this study provides a lawless vision on comprehensive works related to enabling technologies for the next generation of mobile systems and networks, mainly focusing on 5G mobile communications.

APA, Harvard, Vancouver, ISO, and other styles

11

Gaskell, P. S. "Developing technologies for personal communication networks." Electronics & Communications Engineering Journal 4, no. 2 (1992): 53. http://dx.doi.org/10.1049/ecej:19920013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Chang, Shu-Hao. "Patent Technology Network Analysis of Machine-Learning Technologies and Applications in Optical Communications." Photonics 7, no. 4 (December 15, 2020): 131. http://dx.doi.org/10.3390/photonics7040131.

Full text

Abstract:

As the Internet of Things (IoT) develops, applying machine learning on optical communications has become a prospective field of research. Scholars have mostly concentrated on algorithmic techniques or specific applications but have been unable to address the distribution of machine-learning technologies and the development of its applications in optical communications from a macro perspective. Therefore, in this paper, machine-learning patents in optical communications are taken as the analytical basis for constructing a patent technology network. The study results revealed that key technologies were primarily in data input and output devices, data-processing methods, wireless communication networks, and the transmission of digital information in optical communications. Such technologies were also applied to perform measurement for diagnostic purposes and medical diagnoses. The technology network model proposed in this paper explores the technological development trends of machine learning in optical communications and serves as a reference for allocating research and development resources.

APA, Harvard, Vancouver, ISO, and other styles

13

Dhokale, Ishani, and Pratibha Chavan. "Fundamentals of SD WAN Communication Technologies." Journal of Network Security Computer Networks 8, no. 2 (August 9, 2022): 53–58. http://dx.doi.org/10.46610/jonscn.2022.v08i02.005.

Full text

Abstract:

Let us take a look at these new high-tech communications and how they shape the industry. Local area-defined software is a software system that manages wide area networks, provides ease of use, single site management and minimizes the cost, and can enhance communication with branch offices and the cloud. There are been some changes in local networks nothing has been more relevant than software-defined WAN or SD-WAN, which changes the way network professionals think about improving multimedia connectivity such as changing the Multi-protocol label. (MPLS), independent transfer and Digital Subscriber Line (DSL). The separation of hardware and control plane is similar to how software-defined networks use visual technology to improve the management and operation of their data centers. In fact, SD-WAN are set up and managed using proprietary protocols such as Cisco iOS. That is less hardware and less control over the hardware. A leading SD-WAN application that enables organizations to build highly efficient WANs with cost-effective turnkey Internet access. This allows organizations to phase out or completely replace low-cost WAN communication technologies such as MPLS. So customers can easily manage their network regardless of the connection provider. SD-WAN is currently one of the hottest topics with a real impact on CC services and WAN environment. SD-WAN it affects the way we think about how we use the web services yet. More importantly, it has great potential to change the way we use Communication Services in future. There are several industries that are interesting SD-WAN deployment conditions.

APA, Harvard, Vancouver, ISO, and other styles

14

Zhang, Ning, Ning Lu, Tao Han, Yi Zhou, and Dajiang Chen. "Emerging Technologies for Vehicular Communication Networks." Wireless Communications and Mobile Computing 2018 (October 22, 2018): 1–2. http://dx.doi.org/10.1155/2018/2938121.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Frohberg, W. "Emerging Communications Technologies — The Next Decade." Computer Communications 24, no. 10 (May 2001): 996–97. http://dx.doi.org/10.1016/s0140-3664(00)00260-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Lorincz, Josip, Antonio Capone, and Jinsong Wu. "Greener, Energy-Efficient and Sustainable Networks: State-Of-The-Art and New Trends." Sensors 19, no. 22 (November 8, 2019): 4864. http://dx.doi.org/10.3390/s19224864.

Full text

Abstract:

Although information and communications technologies (ICTs) have the potential of enabling powerful social, economic and environmental benefits, ICT systems give a non-negligible contribution to world electricity consumption and carbon dioxide (CO2) footprint. This contribution will sustain since the increased demand for user′s connectivity and an explosion of traffic volumes necessitate continuous expansion of current ICTs services and deployment of new infrastructures and technologies which must ensure the expected user experiences and performance. In this paper, analyses of costs for the global annual energy consumption of telecommunication networks, estimation of ICT sector CO2 footprint contribution and predictions of energy consumption of all connected user-related devices and equipment in the period 2011–2030 are presented. Since presented estimations of network energy consumption trends for main communication sectors by 2030 shows that highest contribution to global energy consumption will come from wireless access networks and data centres (DCs), the rest of the paper analyses technologies and concepts which can contribute to the energy-efficiency improvements of these two sectors. More specifically, different paradigms for wireless access networks such as millimetre-wave communications, Long-Term Evolution in unlicensed spectrum, ultra-dense heterogeneous networks, device-to-device communications and massive multiple-input multiple-output communications have been analysed as possible technologies for improvement of wireless networks energy efficiency. Additionally, approaches related to the DC resource management, DCs power management, green DC monitoring and thermal management in DCs have been discussed as promising approaches to improvement of DC power usage efficiency. For each of analysed technologies, future research challenges and open issues have been summarised and discussed. Lastly, an overview of the accepted papers in the Special Issue dedicated to the green, energy-efficient and sustainable networks is presented.

APA, Harvard, Vancouver, ISO, and other styles

17

Mohanan, Vasuky, and Rahmat Budiarto. "Wireless Communication Technologies for Vehicular Nodes." International Journal of Mobile Computing and Multimedia Communications 5, no. 2 (April 2013): 58–77. http://dx.doi.org/10.4018/jmcmc.2013040105.

Full text

Abstract:

In many countries, road accidents are a leading cause of death as well as being financially draining to the authorities concerned. This problem can be alleviated by having a mechanism to enable exchange of safety related messages to road users in a timely manner. This has given rise to active research in identifying the best technology. Providing comfort and smooth driving experience is also propelling the need to support vehicular communication. These groups of applications present opposing paradigms whereby safety related messages must be exchanged in real-time and characterized by short bursts of traffic and satisfying these diverse criteria are challenging for wireless communications that is the backbone of vehicular communication. Additionally, vehicular nodes sometimes move at high speeds, presenting an added dimension to the complexities surrounding vehicular communication. This article attempts to show the many myriad wireless technologies that have been tossed about as the solution. Choosing the most suitable candidate has to take into account many aspects. This article guides stakeholders such as transport policy decision makers, vehicle makers, and spectrum allocator, to enable them to make a wise and informed decision regarding the right mechanism to use to support vehicular communication.

APA, Harvard, Vancouver, ISO, and other styles

18

Kim, Byung-Seo. "Emerging Information Technologies for Next Generation Communications and Networks." Applied Sciences 11, no. 2 (January 16, 2021): 812. http://dx.doi.org/10.3390/app11020812.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Torres, Ann M., and Martin A. Whyte. "Networks Among Irish Information Communications and Technologies (ICT) Firms." Journal of Research in Marketing and Entrepreneurship 6, no. 1 (July 2004): 52–63. http://dx.doi.org/10.1108/14715200480001355.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Khasambiev, I. V., and E. A. Guseva. "Network architectures and protocols of M2M communications." Journal of Physics: Conference Series 2176, no. 1 (June 1, 2022): 012019. http://dx.doi.org/10.1088/1742-6596/2176/1/012019.

Full text

Abstract:

Abstract The issues of building the architecture of M2M networks and managing M2M services using the capabilities of the IMS platform are considered Introduction. M2M (Machine to Machine) is a complex of technologies that provide automatic interaction between devices (things) without human intervention. The Internet of Things is not a single technology, but a whole system of technological solutions. It is a global network infrastructure, which consists of computer networks of physical objects, the traditional IP Internet, and various devices connecting these networks.

APA, Harvard, Vancouver, ISO, and other styles

21

Kang, Yoohwa, Sunwoo Lee, Songi Gwak, Taekyeong Kim, and Donghyeok An. "Time-Sensitive Networking Technologies for Industrial Automation in Wireless Communication Systems." Energies 14, no. 15 (July 26, 2021): 4497. http://dx.doi.org/10.3390/en14154497.

Full text

Abstract:

The fourth industrial revolution is accelerating industrial automation. In industrial networks, manufacturing processes require hard real-time communication where the latency is less than 1ms. Time-sensitive networking (TSN) technology over Ethernet already supports deterministic delivery for real-time communication. However, TSN technologies over wireless networks are currently in their initial development stage. Therefore, this study presents an overview of TSN research trends in wireless communications. This paper focuses on 5G networks and IEEE 802.11. We summarize standardization trends for TSN in 5G networks and introduce the TSN technologies for 802.11-based WLAN. Then, we introduce the integration scenario of 5GS with WLAN. This study provides insights into wireless communication technologies for wireless TSN.

APA, Harvard, Vancouver, ISO, and other styles

22

Silva, Cristiano M., Barbara M. Masini, Gianluigi Ferrari, and Ilaria Thibault. "A Survey on Infrastructure-Based Vehicular Networks." Mobile Information Systems 2017 (2017): 1–28. http://dx.doi.org/10.1155/2017/6123868.

Full text

Abstract:

The infrastructure of vehicular networks plays a major role in realizing the full potential of vehicular communications. More and more vehicles are connected to the Internet and to each other, driving new technological transformations in a multidisciplinary way. Researchers in automotive/telecom industries and academia are joining their effort to provide their visions and solutions to increasingly complex transportation systems, also envisioning a myriad of applications to improve the driving experience and the mobility. These trends pose significant challenges to the communication systems: low latency, higher throughput, and increased reliability have to be granted by the wireless access technologies and by a suitable (possibly dedicated) infrastructure. This paper presents an in-depth survey of more than ten years of research on infrastructures, wireless access technologies and techniques, and deployment that make vehicular connectivity available. In addition, we identify the limitations of present technologies and infrastructures and the challenges associated with such infrastructure-based vehicular communications, also highlighting potential solutions.

APA, Harvard, Vancouver, ISO, and other styles

23

Abrahamsen, Fredrik Ege, Yun Ai, and Michael Cheffena. "Communication Technologies for Smart Grid: A Comprehensive Survey." Sensors 21, no. 23 (December 3, 2021): 8087. http://dx.doi.org/10.3390/s21238087.

Full text

Abstract:

With the ongoing trends in the energy sector such as vehicular electrification and renewable energy, the Smart Grid (SG) is clearly playing a more and more important role in the electric power system industry. One essential feature of the SG is the information flow over high-speed, reliable, and secure data communication networks in order to manage the complex power systems effectively and intelligently. SGs utilize bidirectional communication to function whereas traditional power grids mainly only use one-way communication. The communication requirements and suitable techniques differ depending on the specific environment and scenario. In this paper, we provide a comprehensive and up-to-date survey on the communication technologies used in the SG, including the communication requirements, physical layer technologies, network architectures, and research challenges. This survey aims to help the readers identify the potential research problems in the continued research on the topic of SG communications.

APA, Harvard, Vancouver, ISO, and other styles

24

El Mettiti, Abderrahmane, and Mohammed Oumsis. "A Survey on 6G Networks: Vision, Requirements, Architecture, Technologies and Challenges." Ingénierie des systèmes d information 27, no. 1 (February 28, 2022): 1–10. http://dx.doi.org/10.18280/isi.270101.

Full text

Abstract:

Our society is increasingly dependent on digitization. For example, different types of physical and virtual objects are connected to the Internet of Things, all services are digitized, and the number of connected devices continues to grow, which leads to the exchange of large amounts of data. The current communication network 5G cannot meet the needs of the future. Therefore, the demand for high-speed mobile communications is essential to better prepare for the arrival of new services and emerging applications. Namely, extended reality, holographic communication, sensory internet, human digital twin, smart city and industry, etc. These new use cases are applied in many different areas. For example, health, autonomous transportation, climate, network security, etc. Therefore, the research of the new generation network 6G has begun to bear the limits of 5G and deal with new challenges. This paper conducts a related investigation on the sixth-generation communication network. First, the vision, requirements, and expected application scenarios of the 6G network are introduced. Then, it describes the integration of intelligent architecture and space, air, ground, and sea networks. Subsequently, the most important potential key technologies needed for the future sixth-generation were exposed and analyzed. Finally, the main research activities carried out are introduced.

APA, Harvard, Vancouver, ISO, and other styles

25

C. A. D, Pahalson, and Nanchen Nimyel Caleb. "5G Wireless Communications for Future Internet of Things: The Need for Free-Space Optical/Visible Light Communication Technology." International Journal of Computer Science and Mobile Computing 8, no. 12 (December 30, 2019): 124–32. http://dx.doi.org/10.47760/ijcsmc.2019.v08i12.001.

Full text

Abstract:

IoT networks have some important characteristics. Some key requirements of the IoT are low device cost, low deployment cost, high energy efficiency, high security and privacy, and support for a large number of devices. The LED-based OWC systems have all the great features required to support the IoT. The key technologies currently used for IoT connectivity are Zigbee, Bluetooth Low Energy (BLE), and WiFi. ZigBee is a low-cost, low-power, wireless mesh network standard that has been widely used for IoT applications. The Internet of Things (IoT) based on the tactile internet will also be an essential part of the 5G communication systems. Accordingly, 5G wireless networks will face numerous challenges in supporting the extensive verities of heterogeneous networks and in satisfying the mentioned service-quality-related parameters. Optical wireless communication (OWC), along with many other wireless technologies, is a promising candidate for serving the demands of 5G communication systems.

APA, Harvard, Vancouver, ISO, and other styles

26

Briso-Rodríguez, César, Ke Guan, Yin Xuefeng, and Thomas Kürner. "Wireless Communications in Smart Rail Transportation Systems." Wireless Communications and Mobile Computing 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/6802027.

Full text

Abstract:

Railway, subway, airplane, and other transportation systems have drawn an increasing interest on the use of wireless communications for critical and noncritical services to improve performance, reliability, and passengers experience. Smart transportation systems require the use of critical communications for operation and control, and wideband services can be provided using noncritical communications. High speed train (HST) is one of the best test cases for the analysis of communication links and specification of the general requirements for train control and supervision, passenger communications, and onboard and infrastructure wireless sensors. In this paper, we analyze in detail critical and noncritical networks mainly using the HST as a test case. First, the different types of links for smart rail transportation are described, specifying the main requirements of the transportation systems, communications, and their applications for different services. Then, we propose a network architecture and requirements of the communication technologies for critical and noncritical data. Finally, an analysis is made for the future technologies, including the fifth-generation (5G) communications, millimeter wave (mmWave), terahertz (THz), and satellites for critical and high-capacity communications in transportation.

APA, Harvard, Vancouver, ISO, and other styles

27

Sun, Zhong Wei. "A Survey on EPON-Based Communication Networks for Smart Grid." Advanced Materials Research 765-767 (September 2013): 2633–36. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.2633.

Full text

Abstract:

The smart grid is emerging as a convergence of information and communication technology with power system engineering, and many network technologies can be used for communications in the generation, distribution and consumption part of the smart grid. However, finding the most appropriate technology that can satisfy their future communication needs is still a challeging issue. In this paper, we survey EPON-based communication systems for Neighborhood area networks (NAN) of smart grid, and both field based application and customer based application are discussed.

APA, Harvard, Vancouver, ISO, and other styles

28

Solyman, Ahmad A. A., and Ismail A. Elhaty. "Potential key challenges for terahertz communication systems." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 4 (August 1, 2021): 3403. http://dx.doi.org/10.11591/ijece.v11i4.pp3403-3409.

Full text

Abstract:

The vision of 6G communications is an improved performance of the data rate and latency limitations and permit ubiquitous connectivity. In addition, 6G communications will adopt a novel strategy. Terahertz (THz) waves will characterize 6G networks, due to 6G will integrate terrestrial wireless mobile communication, geostationary and medium and low orbit satellite communication and short distance direct communication technologies, as well as integrate communication, computing, and navigation. This study discusses the key challenges of THz waves, including path losses which is considered the main challenge; transceiver architectures and THz signal generators; environment of THz with network architecture and 3D communications; finally, Safety and health issues.

APA, Harvard, Vancouver, ISO, and other styles

29

Xia, Nian, Hsiao-Hwa Chen, and Chu-Sing Yang. "Emerging Technologies for Machine-Type Communication Networks." IEEE Network 34, no. 1 (January 2020): 214–22. http://dx.doi.org/10.1109/mnet.001.1900132.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Foubert, Brandon, and Nathalie Mitton. "Long-Range Wireless Radio Technologies: A Survey." Future Internet 12, no. 1 (January 14, 2020): 13. http://dx.doi.org/10.3390/fi12010013.

Full text

Abstract:

Wireless networks are now a part of the everyday life of many people and are used for many applications. Recently, new technologies that enable low-power and long-range communications have emerged. These technologies, in opposition to more traditional communication technologies rather defined as "short range", allow kilometer-wide wireless communications. Long-range technologies are used to form Low-Power Wide-Area Networks (LPWAN). Many LPWAN technologies are available, and they offer different performances, business models etc., answering different applications’ needs. This makes it hard to find the right tool for a specific use case. In this article, we present a survey about the long-range technologies available presently as well as the technical characteristics they offer. Then we propose a discussion about the energy consumption of each alternative and which one may be most adapted depending on the use case requirements and expectations, as well as guidelines to choose the best suited technology.

APA, Harvard, Vancouver, ISO, and other styles

31

GEORGESCU, Valentin. "Security of 5G Networks – A Complex Issue –." Romanian Military Thinking 2022, no. 1 (February 2022): 140–53. http://dx.doi.org/10.55535/rmt.2022.1.08.

Full text

Abstract:

"The history of mobile telecommunications is not very old. It has been a bit more than 40 years since the first generation of cellular communications (1G) was launched on the market, offering the possibility of making and receiving phone calls while on the go, even accompanied by a number of technological limitations, including network and system security. Each new generation of technologies that followed this stage brought significant diversification and improvements in services. Today, there is more and more talk of the fifth generation of mobile communications technologies (5G). The security aspects of 5G networks are a hot topic worldwide, both among major state and nonstate actors. This article highlights the main characteristics of 5G technologies and why security of 5G networks is essential and complex."

APA, Harvard, Vancouver, ISO, and other styles

32

Choi, Young B., and Matthew E. Bunn. "The Security Risks and Challenges of 5G Communications." International Journal of Cyber Research and Education 3, no. 2 (July 2021): 46–53. http://dx.doi.org/10.4018/ijcre.2021070104.

Full text

Abstract:

With the introduction of the 5th generation of wireless systems and communications (5G) comes new risks and challenges. This paper explores the potential security challenges of 5G communication compared with legacy cellular networks and prior generations of communication standards. This paper defines what 5G is and how it affects our lives on a daily basis. It further discusses the new security features involving different technologies applied to 5G, such as heterogeneous networks, device-to-device communications, massive multiple-input multiple-output, software-defined networks, and the internet of things, including autonomous cars, healthcare, automated manufacturing, and more.

APA, Harvard, Vancouver, ISO, and other styles

33

Shakshuki, Elhadi M., Haroon Malik, and Ansar-Ul-Haque Yasar. "Ambient systems, networks & technologies." Future Generation Computer Systems 107 (June 2020): 1011–13. http://dx.doi.org/10.1016/j.future.2019.07.001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Almalki, Mansour. "Technologies Used In 5G Antennas (Comprehensive Review)." Academic Journal of Research and Scientific Publishing 4, no. 44 (December 5, 2022): 05–15. http://dx.doi.org/10.52132/ajrsp.en.2022.44.1.

Full text

Abstract:

In this review, we will shed light on the technology of antennas used in communication within the fifth generation, and we will elaborate on two types of this most advanced technology. The first is Compact Wide-Band Microstrip Patch Antenna; the second type is Four Elements MIMO Antenna. The world has become a network of interconnected networks, and this communication has resulted in huge and enormous data, and the world of communications has become crowded with transmitted and received data, and this development requires revolutions. In the world of wireless communications until we have now reached the world of the fifth generation and the world of augmented virtual reality, and what it requires to connect what affects human life from the home to the car to the workplace, and in parallel with the revolutions in the world of applications, a revolution occurred in the world of antennas, which is the means through which data is transmitted. While doing a review of 5G antennas, The MIMO antennas are the best candidate for smartphones while the massive MIMO antennas can be used at base stations. In MIMO metal rim antenna design the use of carrier aggregation reinforces transmission rate. Also, design features like orthogonal polarization boost isolation thereby enhancing the overall efficiency.

APA, Harvard, Vancouver, ISO, and other styles

35

Masip, Xavi, Abdelhamid Mellouk, Stefano Testa, Eva Marín, Guang-Jie Ren, and Said Hoceini. "Smart Communications in Network Technologies." International Journal of Parallel, Emergent and Distributed Systems 30, no. 6 (September 24, 2015): 426–27. http://dx.doi.org/10.1080/17445760.2015.1076999.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Marchetti, Nicola, and Simone Frattasi. "Applied sciences in communication technologies." Computer Communications 33, no. 17 (November 2010): 2013–14. http://dx.doi.org/10.1016/j.comcom.2010.08.009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Liu, Xiang, and Zuqing Zhu. "Advances in Optical Communications Technologies." IEEE Communications Magazine 55, no. 2 (February 2017): 142. http://dx.doi.org/10.1109/mcom.2017.7842425.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Zhu, Zuqing, and Xiang Liu. "Advances in Optical Communications Technologies." IEEE Communications Magazine 56, no. 8 (August 2018): 112. http://dx.doi.org/10.1109/mcom.2018.8436055.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Kim, Wooseong. "MC-GiV2V: Multichannel Allocation in mmWave-Based Vehicular Ad Hoc Networks." Wireless Communications and Mobile Computing 2018 (July 17, 2018): 1–15. http://dx.doi.org/10.1155/2018/2753025.

Full text

Abstract:

During last several years, mobile communications using mmWave spectrum have been intensively researched for 5G wireless networks. Now the mmWave wireless technologies are evolved into direct device-to-device communications for a single or multihop communication via Giga-bit links. Vehicular ad hoc networks (VANETs) are one of the most attractive areas to apply the direct mmWave communications. In this paper, we propose a Giga-V2V (GiV2V) network, in which vehicles query and deliver high quality video and sensor data of smart and self-driving cars using mmWave communications instead of current dedicated short-range communications (DSRC). In the GiV2V networks, vehicles probably form a grid topology along lanes of a road, which leads to align mmWave beams of the vehicles and cause mutual interference among them. As channel diversity can resolve effectively the interference between mmWave beams, we propose several heuristic algorithms for channel assignment of each beam in the GiV2V networks. We investigate the proposed algorithms using simulation and compare performance with well-known metaheuristic algorithms for this NP-Hard problem.

APA, Harvard, Vancouver, ISO, and other styles

40

Zhu, Zuqing, Xiang Liu, and Mohamed-Slim Alouini. "Advances in Optical Communications and Network Technologies." IEEE Communications Magazine 57, no. 10 (October 2019): 12. http://dx.doi.org/10.1109/mcom.2019.8875705.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Aslam, Muhammad Muzamil, Liping Du, Xiaoyan Zhang, Yueyun Chen, Zahoor Ahmed, and Bushra Qureshi. "Sixth Generation (6G) Cognitive Radio Network (CRN) Application, Requirements, Security Issues, and Key Challenges." Wireless Communications and Mobile Computing 2021 (October 13, 2021): 1–18. http://dx.doi.org/10.1155/2021/1331428.

Full text

Abstract:

Recently, 5G installation has been started globally. Different capabilities are in the consistent procedure, like ultrareliability, mass connectivity, and specific low latency. Though, 5G is insufficient to meet all the necessities of the future technology in 2030 and so on. Next generation information and communication technology is playing an important role in attraction of researchers, industries, and technical people. With respect to 5G networks, sixth-generation (6G) CR networks are anticipated to familiarize innovative use cases and performance metrics, such as to offer worldwide coverage, cost efficiency, enhanced spectral, energy improved intelligence, and safety. To reach such requirements, upcoming 6G CRNs will trust novel empowering technologies. Innovative network architecture and transmission technologies and air interface are of excessive position, like multiple accesses, waveform design, multiantenna technologies, and channel coding schemes. (1) To content, the condition should be of worldwide coverage, there will be no limit on 6G to global CR communication networks that may require to be completed with broadcast networks, like satellite communication networks, therefore, attaining a sea integrated communication network. (2) The spectrums overall will be entirely travelled to the supplementary rise connection density data rates in optical frequency bands, millimeter wave (mmWave), sub-6 GHz, and terahertz (THz). (3) To see big datasets created because of tremendously varied CR communication networks, antenna rush, diverse communication scenarios, new provision necessities, wide bandwidth, and 6G CRNs will allow an innovative variety of intelligent applications with the assistance of big data and AI technologies. (4) Need to improve network security when deploying 6G technology in CR networks. 6G is decentralized, intended, intelligent innovative, and distributed network. In this article, we studied a survey of current developments and upcoming trends. We studied the predicted applications, possible technologies, and security issues for 6G CR network communication. We also discussed predicted future key challenges in 6G.

APA, Harvard, Vancouver, ISO, and other styles

42

Rao, Jai R. "Reading up books: Computer communications networks: New technologies revolutionize computers." IEEE Potentials 4, no. 4 (December 1985): 33–36. http://dx.doi.org/10.1109/mp.1985.6500211.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Pavan, Elena. "Embedding Digital Communications Within Collective Action Networks: A Multidimensional Network Approach." Mobilization: An International Quarterly 19, no. 4 (December 1, 2014): 441–55. http://dx.doi.org/10.17813/maiq.19.4.w24rl524u074126k.

Full text

Abstract:

In this article, we conceive of digital media as embedded within social networks, and use this perspective to examine the role of online communications in collective action. We claim that the adoption of this perspective requires two shifts: first, rethinking the ontological separation between media and social networks of action that has, so far, characterized research in this domain; second, the adoption of flexible tools that enable us to account, simultaneously, for the multiplicity of relations underpinning collective efforts and the hybrid interplay between direct and technology-mediated interactions. After discussing the necessity and the implications of considering communication technologies as endogenous to social networks of collective action, we introduce multidimensional networks (MDNs) as a suitable perspective to advance the application of a relational approach to the study of collective action, thus meeting the challenges posed by the diffusion of interactive and networking digital media.

APA, Harvard, Vancouver, ISO, and other styles

44

Carvajal-Rodríguez, Jorge, Christian Tipantuña, Felipe Leonel Grijalva Arévalo, and Luis Felipe Urquiza Aguiar. "Descripción general de comunicaciones habilitadas por UAV en escenarios de emergencia posterior a un desastre." Revista de Investigación en Tecnologías de la Información 10, no. 21 (September 2022): 132–39. http://dx.doi.org/10.36825/riti.10.21.012.

Full text

Abstract:

Maintaining communications and providing services to users is crucial after a natural disaster due to the damage to traditional communications networks. Emergency networks using UAVs solve this problem due to their rapid deployment. This article presents an overview of the challenges and solutions related to the feasibility of emergency communication systems in different scenarios, path planning, and positioning. Besides, It describes the technologies to realize the core and implemented networks associated with UAVs.

APA, Harvard, Vancouver, ISO, and other styles

45

Cheng, Xinda, Ning Hu, Yue Zhao, Kaijun Wu, Jincai Zou, and Yixing Chen. "A Covert-Aware Anonymous Communication Network for Social Communication." Security and Communication Networks 2022 (November 15, 2022): 1–13. http://dx.doi.org/10.1155/2022/2255047.

Full text

Abstract:

To effectively protect the communication content and communication behavior of social networks, anonymous communication technologies are widely used. However, the anonymous communication networks represented by Tor and I2P lack the covertness of the control plane design, which leads to important user behavioral characteristics in the process of accessing anonymous communication networks. Therefore, network monitors can analyze users' communication behavior by tracking these characteristics. In this paper, the concept of covert measurement is proposed. On this basis, a software-defined anonymous communication network architecture is presented, which also considers the covertness of the anonymous communication network control plane and the data plane. According to the theoretical analysis and experimental results, the anonymous communication network architecture proposed in this paper has better anonymity and usability than traditional anonymous communication networks, such as Tor.

APA, Harvard, Vancouver, ISO, and other styles

46

Salameh, Ahmed I., and Mohamed El Tarhuni. "From 5G to 6G—Challenges, Technologies, and Applications." Future Internet 14, no. 4 (April 12, 2022): 117. http://dx.doi.org/10.3390/fi14040117.

Full text

Abstract:

As the deployment of 5G mobile radio networks gains momentum across the globe, the wireless research community is already planning the successor of 5G. In this paper, we highlight the shortcomings of 5G in meeting the needs of more data-intensive, low-latency, and ultra-high-reliability applications. We then discuss the salient characteristics of the 6G network following a hierarchical approach including the social, economic, and technological aspects. We also discuss some of the key technologies expected to support the move towards 6G. Finally, we quantify and summarize the research work related to beyond 5G and 6G networks through an extensive search of publications and research groups and present a possible timeline for 6G activities.

APA, Harvard, Vancouver, ISO, and other styles

47

Duan, Qiang. "Intelligent and Autonomous Management in Cloud-Native Future Networks—A Survey on Related Standards from an Architectural Perspective." Future Internet 13, no. 2 (February 5, 2021): 42. http://dx.doi.org/10.3390/fi13020042.

Full text

Abstract:

Cloud-native network design, which leverages network virtualization and softwarization together with the service-oriented architectural principle, is transforming communication networks to a versatile platform for converged network-cloud/edge service provisioning. Intelligent and autonomous management is one of the most challenging issues in cloud-native future networks, and a wide range of machine learning (ML)-based technologies have been proposed for addressing different aspects of the management challenge. It becomes critical that the various management technologies are applied on the foundation of a consistent architectural framework with a holistic vision. This calls for standardization of new management architecture that supports seamless the integration of diverse ML-based technologies in cloud-native future networks. The goal of this paper is to provide a big picture of the recent developments of architectural frameworks for intelligent and autonomous management for future networks. The paper surveys the latest progress in the standardization of network management architectures including works by 3GPP, ETSI, and ITU-Tand analyzes how cloud-native network design may facilitate the architecture development for addressing management challenges. Open issues related to intelligent and autonomous management in cloud-native future networks are also discussed in this paper to identify some possible directions for future research and development.

APA, Harvard, Vancouver, ISO, and other styles

48

Bendaoud, Fayssal, Marwen Abdennebi, and Fedoua Didi. "Network Selection in Wireless Heterogeneous Networks: a Survey." Journal of Telecommunications and Information Technology 4 (December 28, 2018): 64–74. http://dx.doi.org/10.26636/jtit.2018.126218.

Full text

Abstract:

Heterogeneous wireless networks is a term referring to networks combining diﬀerent radio access technologies with the aim of establishing the best connection possible. In this case, users with multi-mode terminals can connect via diﬀerent wireless technologies, such as 802.16, 802.11, UMTS, HSPA and LTE, all at the same time. The problem consists in the selection of the most suitable from all radio access technologies available. The decision process is called network selection, and depends on several parameters, such as quality of service, mobility, cost, energy, battery life, etc. Several methods and approaches have been proposed in this context, with their objective being to oﬀer the best QoS to the users, and/or to maximize re-usability of the networks. This paper represents a survey of the network selection methods used. Multiple attribute-dependent decision-making methods are presented. Furthermore, the game theory concept is illustrated, the use of the fuzzy logic is presented, and the utility functions deﬁning the network selection process are discussed.

APA, Harvard, Vancouver, ISO, and other styles

49

Chaudhry, Junaid Ahsenali, Chaudhry Sajjad Hussain, and Seungkyu Park. "Some Enabling Technologies for Ubiquitous Networks." Journal of Computer Science 2, no. 8 (August 1, 2006): 627–33. http://dx.doi.org/10.3844/jcssp.2006.627.633.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Manzalini, Antonio. "Quantum Communications in Future Networks and Services." Quantum Reports 2, no. 1 (March 11, 2020): 221–32. http://dx.doi.org/10.3390/quantum2010014.

Full text

Abstract:

Over the last few years, we have witnessed an impressive growth of data traffic and a progressive Digital Transformation of Industry and Society: the deployment of the ultra-broadband and low latency network infrastructures (e.g., 5G) are leading to a global digitalization of several domains. These techno-economic trends are expected to continue and even accelerate in the next decade, at end of which, 6G and smart networks and services will be exploited. Innovation will continue to drive the global economy into the next decade. This paper draws some technology trends and applications scenarios for this horizon, where Quantum Optical Communications are likely to disrupt Information and Communications Technology (ICT) and Telecommunications. Among the enabling technologies and solutions moving in this direction, this paper briefly addresses: quantum optical switching and computing, THz-to-optical conversions and advanced metamaterials for smart radio-optical programmable environments and Artificial Intelligence. The paper concludes with the description of a future application scenario, called Quantum Optical Twin, where the above Quantum Optical Communications technologies are exploited to provide services such as: ultra-massive scale communications for connected spaces and ambient intelligence, holographic telepresence, tactile Internet, new paradigms of brain computer interactions, innovative forms of communications.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Communications and networks technologies'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles