Gotowe bibliografie tematyczne / Wireless communication

Gotowa bibliografia na temat „Wireless communication”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 8 czerwca 2024

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Artykuły w czasopismach na temat "Wireless communication"

Aggarwal, Rishabh. "Wireless Communication: Evolution and Advance Wireless Communication". International Journal of Sustainable Development Research 4, nr 2 (2018): 25. http://dx.doi.org/10.11648/j.ijsdr.20180402.12.

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Hadi, Teeb Hussein. "Types of Attacks in Wireless Communication Networks". Webology 19, nr 1 (20.01.2022): 718–28. http://dx.doi.org/10.14704/web/v19i1/web19051.

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One of the most important types that used to transfer data between nodes without using wires is a “wireless communication network”, where the transmission of data is censored remotely by using electromagnetic waves such as radio waves that usually implemented in the physical layer of the network. Continuous improvements in wireless network technology have reduced the security and speed differences between types of networks (wired and wireless), but in turn, increased security threats to wirelessly transmitted data. Wireless networks are weak in terms of "privacy protection" because anyone who is within the coverage area of a wireless network can attempt to break into that network. Hacking incidents have been reported frequently in places with shared free networks, and it has been observed that the places of open distributed networks of the Internet are most at risk of complete penetration of your phone or PC data. To solve this problem, several programs have been developed that provide protection for wireless networks that differ in terms of security. Some of them did not provide sufficient protection for wireless networks, such as Wired Equivalent Privacy (WEP), and others made progress in preventing intrusions compared to their predecessors, such as Wi-Fi Protected Access (WPA).

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Handayani, Tri Febriana, Pande Ketut Sudiarta i I. Made Oka Widyantara. "UJI KEAMANAN KOMUNIKASI VOIP MENGGUNAKAN SISTEM KEAMANAN SRTP-TLS PADA JARINGAN NIRKABEL". Jurnal SPEKTRUM 5, nr 1 (25.06.2018): 13. http://dx.doi.org/10.24843/spektrum.2018.v05.i01.p02.

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VoIP is a technology used to communicate voice remotely and directly using data communication lines with TCP / IP protocol. But basically, VoIP communication does not guarantee data security when doing communication. A very important security system is added in VoIP communications to maintain the confidentiality of communication, so that communication can not be recorded and played back. To build a security when communicating VoIP, then in this study added an SRTP-TLS security system. The study was conducted on wireless networks by comparing the security of data communications when using the SRTP-TLS security system and without using a security system.Keywords: Wireless, Security System, VoIP

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Wen, Li Jia, i Xin Li. "The Research of CIR Based on Communication Technology of GSM-R". Applied Mechanics and Materials 713-715 (styczeń 2015): 1269–72. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.1269.

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In order to realize the wireless communication function of railway locomotives, Cab Integrated Wireless communication equipment (referred to as CIR) as the railway wireless communication system in China's railway locomotives equipment, because has powerful functions, high degree of standardization, and flexible operating characteristics emerged. CRI is based on the GSM-R digital mobile communication technology, GPS global positioning technology, 450MHz and 800MHz analog wireless communications technology such as the development of comprehensive in-vehicle communications equipment. It is the ground of GSM-R equipment and 450MHz, 800MHz and other ground equipment, together form a complete rail integrated wireless communications network.

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Wang, Haichao, Jinlong Wang, Guoru Ding i Zhu Han. "D2D Communications Underlaying Wireless Powered Communication Networks". IEEE Transactions on Vehicular Technology 67, nr 8 (sierpień 2018): 7872–76. http://dx.doi.org/10.1109/tvt.2018.2832068.

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Li, Fang Jian. "Analysis of the Wireless Optical Communication Technology and its Application". Applied Mechanics and Materials 687-691 (listopad 2014): 3579–82. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.3579.

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The wireless optical communication is a kind of broadband access technology, it can be said that it properly combined with the optical fiber and wireless communication technology. More to say, it is a powerful supplement of modern optical fiber communication. In this paper, based on the advantages of wireless optical communication technology, this paper introduces the wireless optical communication technology in the application of 2G network, 3G network and extends the application in backbone network, and analyzes the common problems and solutions in the wireless optical communication. With the advance of technology, the wireless optical communications technology development prospects will be more and more broad, is worthy of popularization and application.

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Raj, Hritik, Charu Mitra, Gauri Shankar, Chandan Kumar i Harsh Raj. "Lifi wireless communication". International Journal of Innovative Research in Physics 2, nr 2 (1.01.2021): 15–18. http://dx.doi.org/10.15864/ijiip.2203.

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Li-Fi stands for Light-fidelity. The technology was very new and proposed by the German Physicist Harald Hass in 2011. Li-Fi basically aims to replace Wi-Fi by using light to transmit internet signals. It works on the principle of visible light communication I.e .use of visible light for communication. Though Li-Fi is a system that is capable of transmitting data at high speeds over the visible light, ultraviolet and infrared spectrum but in its present state only LED lambs can be used. It consists of a light bulb which is used as an emitter and a photo diode as a receiver. Li-Fi provides transmission of data through an LED light bulb that varies in intensity faster than human eye can follow .It is ideal for high density wireless data coverage in confined area where there is no obstacle. It provides better bandwidth efficiency, availability& security than wifi. The technology is actively being developed by several organizations across the globe. In this project we tried to show a basic prototype of wireless data transmission using LiFi and what future it holds within itself for the new generation needs

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K, Ramya, i Pavithradevi K. "EFFECTIVE WIRELESS COMMUNICATION." International Journal of Advanced Research 4, nr 12 (31.12.2016): 1559–62. http://dx.doi.org/10.21474/ijar01/2556.

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Haenggi, Stefan. "WIRELESS COMMUNICATION SYSTEM". Journal of the Acoustical Society of America 132, nr 4 (2012): 2776. http://dx.doi.org/10.1121/1.4757808.

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Haas, Harald, Jaafar Elmirghani i Ian White. "Optical wireless communication". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, nr 2169 (2.03.2020): 20200051. http://dx.doi.org/10.1098/rsta.2020.0051.

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Optical wireless communication has attracted significant interest recently in industry and academia. This special issue features a collection of inter-related papers with the intention to cover all necessary multidisciplinary challenges to realize optical wireless networks. We hope that this special issue will serve as a comprehensive reference and that it will be a resource which fosters many more new ideas for this rapidly emerging field. This article is part of the theme issue ‘Optical wireless communication’.

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Rozprawy doktorskie na temat "Wireless communication"

Kodikara, Patabandi C. K. "Multimedia communications over 3G wireless communication systems". Thesis, University of Surrey, 2004. http://epubs.surrey.ac.uk/844270/.

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This thesis addresses the transmission of video over third generation radio access networks. The first part of the thesis investigates the capabilities of Universal Terrestrial Radio Access Networks (UTRAN) in terms of the provision of multimedia communications. The error performance and traffic requirements of real-time video transmission over circuit switched and packet switched connections are examined. The effect of network parameter settings upon video performances is evaluated, and optimum radio bearer configurations for the transmission of video are derived. A method of estimating received video quality after transmission over error prone environments is developed. The quality estimation is based on a distortion model, which accurately models the overall distortion seen in decoder frame reconstruction. This includes quantisation distortion, concealment distortion, and error propagation. Based on the developed performance model, optimum MTU (Maximum Transfer Unit) size for efficient wireless video communications over a packet switched access network is derived. The second part of the thesis investigates quality enhancement techniques for multimedia traffic transmitted over wireless channels. Quality enhancement is achieved at three levels of the transmission process: link level, application level and system level. Link level quality enhancement techniques are designed to optimise the allocation of link level parameter values according to the media characteristics. A novel Unequal Error Protection scheme and a novel Unequal Power Allocation scheme are designed to exploit the inherent diversity in the subjective importance of different sections of compressed media. The algorithms are developed and analysed for transmission of video over 3G wireless systems. The effectiveness of these algorithms is demonstrated through the results of simulated transmission over a UMTS channel. Application level quality enhancement techniques are designed to explore the time-varying nature of the wireless channel. A number of link adaptation schemes are proposed for real time video communication and real-time video streaming over 3G wireless systems. These algorithms are designed to enhance the perceptual video quality, and the system utilisation. This is achieved by adapting the allocated radio network parameters and the source parameters, according to a feedback channel condition. Simulation results show a significant performance improvement compared to non-adaptive schemes. Finally, system level adaptation techniques are designed for efficient radio resource allocation in multi-user scenarios. Two adaptive resource allocation schemes are proposed and analysed for real-time video communications in a UMTS system. The proposed algorithms are shown to provide improved performances in terms of average received video quality and user satisfaction. Key words: Wireless Communication, Multimedia communication. Video Transmission.

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Muhovic, Admir. "Secure Wireless Communication". Thesis, KTH, Kommunikationssystem, CoS, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-92023.

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The need for and requests for utilization of wireless equipment are growing rapidly. Advantages of using wireless communication are easy to realize. Having access to electronically stored information no matter where you are is a big advantage. Furthermore, wireless communication is increasingly utilized in everyday work and there is a constant development of new wireless equipment. Today, utilization of wireless communication is very practical as well as effective. On the other hand, using wireless equipment and communication entails risk unless efforts are made to secure this communication. Some wireless protocols exist and are used, despite their being vulnerable to attacks. Additionally, the traffic can easily be eavesdropped. Incorrect installation of wireless equipment contributes to the vulnerabilities of wireless communication. Some of the IT-equipment available on the market today offers wireless communication. This equipment is increasingly used within FMV. Such equipment includes: laptops, PDAs, cellular phones, etc. This wireless equipment, according to FMV’s information security policy, must be approved from a security viewpoint before it can be used at FMV. Thus an analysis of risks associated with usage of wireless equipment must take place and the mechanisms necessary to ensure adequate security must be identified. The document “Requirements on Security Functions (Kraven på SäkerhetsFunktioner, KSF)” identifies the technical and/or administrative requirements for such equipment.</p> The aim of this thesis was to analyze if it is possible to utilize wireless equipment at FMV, specifically, if it can be connected to the internal LAN at FMV. In other words, the wireless equipment must be able to offer security protection corresponding to the information security class: HEMLIG/RESTRICTED. The thesis contains an analysis of which security functions are available on the market today and evaluates whether these security functions meet the requirements given in KSF. The result is a proposal for the best security mechanism(s) within the constraints of KSF and the available equipment. The thesis proposes a technical solution along with suitable security mechanisms. The advantages and drawbacks of each has been analyzed. Additionally, the thesis presents a number of (administrative) security policies in order to be able to handle security aspects which are not covered by the KSF.
Behoven och efterfrågan av mobil och trådlös utrustning är i dagsläget allt större. Fördelarna med att använda sig av trådlös kommunikation är enkla att inse. Att kunna ha tillgång till elektroniskt lagrad information oavsett var man än befinner sig är en stor fördel. Vidare implementeras trådlös kommunikation allt mer i det vardagliga arbetet samtidigt som utrustning för denna sorts kommunikation är i ständig utveckling. I slutändan är användandet av trådlös kommunikation väldigt praktiskt samtidigt som det är effektivt. Användandet av trådlös utrustning och kommunikation medför ett risktagande då denna typ av kommunikation allmänt är osäker. Detta eftersom teknologin fortfarande är i utvecklingsfasen. De i dagsläget aktuella trådlösa protokollen är sårbara för attacker och det är dessutom enkelt att avlyssna trafiken. Felaktig installation av utrustning bidrar dessutom också till att den trådlösa kommunikationen blir sårbar. En del av den IT-utrustning som idag finns tillgänglig ute på marknaden och som alltmer används inom FMV har möjlighet att kommunicera trådlöst med omgivningen. Exempel på sådan utrustning är bärbara datorer, PDA:er, mobiltelefoner mm. Denna typ av utrustning, dvs. trådlös utrustning, skall enligt FMVs informationssäkerhetspolicy godkännas från säkerhetssynpunkt innan den får tas i bruk på FMV. Det innebär att man utför en analys av vilka risker som är förknippade med användandet av trådlös utrustning samt att man identifierar adekvata skyddsåtgärder. Till sin hjälp använder man sig av Kraven på SäkerhetsFunktioner (KSF) som består av tekniska och/eller administrativa krav. Syftet med detta examensarbete var att undersöka om det finns möjlighet att använda trådlös utrustning på FMV, dvs. att denna används på interna LAN på FMV. Med andra ord skall den trådlösa utrustningen kunna erbjuda ett skydd motsvarande högst informationssäkerhetsklassen HEMLIG/RESTRICTED (H/R). Examensarbetet innefattar en analys av vilka säkerhetsfunktioner idag finns tillgängliga ute på marknaden och utvärderar huruvida dessa säkerhetsfunktioner uppfyller kraven givna i Kraven på SäkerhetsFunktioner (KSF). Resultatet är ett förslag på de bästa säkerhetsmekanismerna inom restriktionerna av KSF och den tillgängliga utrustningen. Examensarbetet föreslår en teknisk lösning med lämpliga säkerhetsmekanismer. Dess för- och nackdelar har analyserats. Examensarbetet presenterar dessutom ett antal (administrativa) säkerhets policies som hanterar säkerhetsaspekter som inte omhändertas av KSF.

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Cottingham, David Naveen. "Vehicular wireless communication". Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611258.

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Dagne, Carl, Johan Bengtsson i Ingemar Lindgren. "Microwave Wireless Communication System". Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-232.

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The purpose of the project was to develop the hardware to a microwave wireless system working

at the frequency 2.45 GHz. The functionality of the system should also be easy to understand

since the system is to be used in an educational purpose. Much time has been spent impedance

matching components, a task that proved to be harder than we expected. Other work that has been

is layout of all parts, filter construction and the writing of an easy to understand thesis. After the

parts had been completed, they were tested in a network analyzer and/or spectrum analyzer.

Successful full system test has been done up to 400 meters, the length the system is to be used

for.

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Herbert, Steven John. "Wireless communication in vehicles". Thesis, University of Cambridge, 2015. https://www.repository.cam.ac.uk/handle/1810/280675.

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There is an increasing interest in the deployment of wireless communication systems in vehicles. The motivation for this work is to provide a fundamental characterisation of the in-vehicle Electromagnetic (EM) wave propagation environment, and to demonstrate how this can be used to aid the deployment of wireless communication systems in vehicles. The fundamental characterisation of the in-vehicle EM wave propagation environment presented in this dissertation yields a number of useful outcomes. The instantaneous impulse response of the in-vehicle channel is characterised, which is presented in the form of a statistical model for arriving rays. Noticing that it is impractical to undertake a full statistical characterisation of the time-varying impulse response, the time variation of the in-vehicle channel is instead characterised as a Doppler spread. This approach provides parameters which are sufficient to perform an information theoretic analysis to lower bound the capacity of the in-vehicle channel. For typical operating conditions, it is found that the channel capacity is approximately equal to that of the same channel with perfect channel state information available at the receiver. Having established the fundamental EM wave propagation characteristics for a single in-vehicle wireless channel, the EM properties of the cavity itself are characterised. This is achieved through a thorough investigation into the analogy between vehicle cavities and reverberation chambers, specifically considering the quality factor (and hence time constant), EM isolation, and electric field uniformity of typical vehicle cavities. This approach yields the important insight that the root mean square delay spread is approximately the same for all wireless links in a typical vehicle cavity. Also, that the angular spread of energy received at any given location (away from the cavity boundaries) is approximately uniform, and that over short distances the coherence distance is well defined, and hence Multiple Input Multiple Output antenna arrays should work well in vehicles. To what extent a typical wireless system can exploit this characterisation depends on how well the parameters can be estimated by a typical wireless communication system. This is also addressed, specifically investigating the estimation of the cavity time constant, and channel time variation. It is found that both of these can be estimated well using a typical wireless sensor network system.

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Jiang, Junyi. "Optical wireless communication systems". Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/387239/.

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In recent years, Optical Wireless (OW) communication techniques have attracted substantial attention as a benefit of their abundant spectral resources in the optical domain, which is a potential solution for satisfying the ever-increasing demand for increased wireless capacity in the conventional Radio Frequency (RF) band. Motivated by the emerging techniques and applications of OW communication, the Institute of Electrical and Electronics Engineers (IEEE) had released the IEEE standard 802.15.7 for short-range optical wireless communications, which categorised the Physical layer (PHY) of the OW communication into three candidate-solutions according to their advantages in different applications and environments: 1) Physical-layer I (PHY I): Free Space Optical (FSO)communication employs high-intensity Light Emitting Diodes (LEDs) or Laser Diodes (LDs) as its transmitter. 2) Physical-layer II (PHY II) uses cost-effective, low-power directional white LEDs for the dual function of illumination and communication. 3) Physical III (PHY-III) relies on the so-called Colour-Shift Keying (CSK) modulation scheme for supporting high-rate communication. Our investigations can be classified into three major categories, namely Optical Orthogonal Frequency Division Multiplexing (OFDM) based Multiple-Input Multiple-Output (MIMO) techniques for FSO communications in the context of PHY I, video streaming in PHY-II and the analysis and design of CSK for PHY-III. To be more explicit, in Chapter 2 we first construct a novel ACO-OFDM based MIMO system and investigate its performance under various FSO turbulence channel conditions. However, MIMO systems require multiple optical chains, hence their power consumption and hardware costs become substantial. Hence, we introduced the concept of Aperture Selection (ApS) to mitigate these problems with the aid of a simple yet efficient ApS algorithm for assisting our ACO-OFDM based MIMO system. Since the channel conditions of indoor Visible Light Communication (VLC) environments are more benign than the FSO-channels of Chapter 2, directional white LEDs are used to create an “attocell” in Chapter 3. More specifically, we investigate video streaming in a multi-Mobile Terminals (MTs) indoor VLC system relying on Unity Frequency Reuse (UFR) as well as on Higher Frequency Reuse Factor based Transmission (HFRFT) and on Vectored Transmission (VT) schemes. We minimise the distortion of video streaming, while satisfying the rate constraints as well as optical constraints of all the MTs. In Chapter 4 we analyse the performance of CSK relying both on joint Maximum Likelihood (ML) Hard-Detection (HD), as well as on the the Maximum A posteriori (MAP) criterion-based Soft-Detection (SD) of CSK. Finally, we conceive both two- stage and three-stage concatenated iterative receivers capable of achieving a substantial iteration gain, leading to a vanishingly low BER.

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Du, Hao. "Optical wireless MIMO communication". Thesis, University of Warwick, 2015. http://wrap.warwick.ac.uk/70945/.

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This thesis provides an in-depth investigation and evaluation of infrared optical wireless MIMO communication systems to be applied in both indoor and outdoor environment. The principle objective of the research is to demonstrate both the advantages and disadvantages of the optical wireless MIMO systems using different modulation types. The first part provided analyses of important OW configurations using APD receivers using WMC model and SISO, MISO, SIMO and MIMO configuration. Thus, an analytical expression for 2-1 MISO, 1-2 SIMO and MIMO was successfully developed. This part also illustrates the coding gains possible using diversity schemes for APD OW systems. In the presence of strong fading, the SISO approach is rendered virtually useless, whereas diversity offers acceptable BER values. The results underpin the approach of this thesis, where indoor PIN diode based experimental measurements confirm the gains offered by diversity. In the second part of the work, several optical wireless MIMO systems applicable for the indoor environment are developed for three different modulation types, OOK modulation, PPM modulation and SIR-RZI modulation. These modulations are used in optical MIMO systems are studied for which, mathematical models that evaluate the BER performance of the MIMO system for different axis displacement and for different distances between transmitters and receivers. Based on the results, the PPM system has been shown to present the best BER performance, including high interference-resistance capability. A group of new mathematical models have been evaluated, which demonstrates a high level of correlation with the results derived from empirical models at 93%. Thus, the mathematical models developed and used for the specified evaluation appear to correspond reasonably well, and can be applied in future research on these aspects.

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Кovalenko, Viktoriya, i Oksana Tykhenko. "Wireless communication safety analysis". Thesis, Proceedings the Seventh World Congress «Aviation in the XXI-st Century», September 19 – 21, 2016. – P. 5.4.46 – 5.4.48, 2016. http://er.nau.edu.ua/handle/NAU/29355.

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Gao, Zihao. "Wireless Powered Communication Networks". Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17169.

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The limited life time of batteries is a crucial issue in energy-constrained wireless communications. Recently, the radio frequency (RF) wireless energy transfer (WET) technique has been developed as a new practical method to extend the life time of wireless communication networks. Inspired by this, wireless-powered communication network (WPCN) has attracted much attention. Therefore, in this thesis, we consider practical WET and wireless-powered information transmission in WPCNs. First we investigate a WPCN with two nodes, in which an access point (AP) exchanges information with a wireless-powered user. The user is assumed to have no embedded energy supply and needs to harvest energy from RF signals broadcast by the AP. Differing from existing work that focuses on the design of wireless-powered communication with one-way information flow, we deal with a more general scenario where both the AP and the user have information to transmit. Considering that the AP and user can work in either half-duplex or full-duplex mode as well as having two practical receiver architectures at the user side, we propose five elementary communication protocols for the considered system. Moreover, we define the concept of a throughput region to characterize the tradeoff between the uplink and downlink throughput in all proposed protocols. Numerical simulations are finally performed to compare the throughput regions of the proposed five elementary protocols. To further the study on WPCN, we investigate a wireless-powered two-way relay system, in which two wireless-powered sources exchange information through a multi-antenna relay. Both sources are assumed to have no embedded energy supply and thus first need to harvest energy from the radio frequency signals broadcast by the relay before exchanging their information via the relay. We aim to maximize the sum throughput of both sources by jointly optimizing the time switching duration, the energy beamforming vector and the precoding matrix at the relay. The formulated problem is non-convex and hard to solve in its original form. Motivated by this, we simplify the problem by reducing the number of variables and by decomposing the precoding matrix into a transmit vector and a receive vector. We then propose a bisection search, a 1-D search and an iterative algorithm to optimize each variable. Numerical results show that our proposed scheme can achieve higher throughput than the conventional scheme without optimization on the beamforming vector and precoding matrix at the relay. Due to the high attenuation of RF energy over a long distance, RF based wireless-powered communication is usually designed for low-power scenarios, e.g., wireless-powered sensor networks. Recently, magnetic induction (MI) based WET has been proposed to wirelessly transfer a large amount of energy. Inspired by this, we investigate MI based WET in WPCN. Specifically, we study a MI based wireless-powered relaying network, in which a MI source transmits information to a MI destination, with the help of a MI based wireless powered relay. We propose four active relaying schemes, which consider different relaying modes and different energy harvesting receiver architectures at the relay. We then aim to maximize the end-to-end throughput of each scheme by using a bisection search, a water-filling algorithm, a Lagrange multiplier, quasi-convex programming and an iterative algorithm. We compare the proposed active relaying schemes with passive relaying. Numerical results show that the proposed relaying schemes with a decode-and-forward relaying mode significantly improve the throughput over passive relaying.

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Yamashita, Shota. "Coexistence of Wireless Communication and Non-communication Systems". Kyoto University, 2018. http://hdl.handle.net/2433/232420.

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Książki na temat "Wireless communication"

Wireless communication. New Delhi: Oxford University Press, 2009.

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Broadband wireless communications: 3G, 4G, and wireless LAN. Boston: Kluwer Academic Publishers, 2001.

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Ke, Xizheng, i Ke Dong. Optical Wireless Communication. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0382-3.

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Cooklev, Todor. Wireless Communication Standards. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118098837.

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Sobot, Robert. Wireless Communication Electronics. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-48630-3.

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Sobot, Robert. Wireless Communication Electronics. Boston, MA: Springer US, 2012. http://dx.doi.org/10.1007/978-1-4614-1117-8.

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Roy, Blake, red. Wireless communication technology. Albany, NY: Delmar, 2000.

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S, Swamy M. N., red. Wireless communication systems. Cambridge: Cambridge University Press, 2010.

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Sharma, Vandana, Balamurugan Balusamy, Gianluigi Ferrari i Prerna Ajmani. Wireless Communication Technologies. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003389231.

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Du, K. L. Wireless communication systems. Cambridge: Cambridge University Press, 2010.

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Części książek na temat "Wireless communication"

Higgins, Henry. "Wireless Communication". W Body Sensor Networks, 155–88. London: Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-6374-9_4.

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Kilinc, Enver Gurhan, Catherine Dehollain i Franco Maloberti. "Wireless Communication". W Analog Circuits and Signal Processing, 77–103. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-21179-4_4.

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Cameron, Neil. "Wireless Communication". W Arduino Applied, 311–23. Berkeley, CA: Apress, 2018. http://dx.doi.org/10.1007/978-1-4842-3960-5_17.

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Krommenacker, Nicolas, Vincent Lecuire, Nicolas Salles, Serafim Katsikas, Christos Giordamlis i Christos Emmanouilidis. "Wireless Communication". W E-maintenance, 247–72. London: Springer London, 2010. http://dx.doi.org/10.1007/978-1-84996-205-6_10.

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Maclay, Walter N. "Wireless Communication". W Closing the Care Gap with Wearable Devices, 115–20. New York: Productivity Press, 2022. http://dx.doi.org/10.4324/9781003304036-15.

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Bhagyaveni, M. A., R. Kalidoss i K. S. Vishvaksenan. "Wireless Communication". W Introduction to Analog and Digital Communication, 203–35. New York: River Publishers, 2022. http://dx.doi.org/10.1201/9781003338673-13.

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Bräunl, Thomas. "Wireless Communication". W Embedded Robotics, 131–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-05099-6_9.

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Kühner, Jens. "Wireless Communication". W Expert .NET Micro Framework, 203–8. Berkeley, CA: Apress, 2009. http://dx.doi.org/10.1007/978-1-4302-2388-7_7.

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Biswas, Rajib. "Wireless Communication". W Advanced Wireless Communication and Sensor Networks, 3–9. New York: Chapman and Hall/CRC, 2023. http://dx.doi.org/10.1201/9781003326205-2.

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Ranjan, Prashant, Ram Shringar Rao, Krishna Kumar i Pankaj Sharma. "IoT Based Flood Control and Disaster Management System for Dam and Barrage". W Wireless Communication, 129–38. New York: CRC Press, 2022. http://dx.doi.org/10.1201/9781003181699-6.

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Streszczenia konferencji na temat "Wireless communication"

M. Gallant, Linda, Gloria M. Boone i Gregg Almquist. "Wireless Organizational Communication: A Framework for Communicative Informatics". W 2003 Informing Science + IT Education Conference. Informing Science Institute, 2003. http://dx.doi.org/10.28945/2709.

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As mobile communication becomes more pervasive, there is an increasing need to study the potential uses of wireless organizational communication. The difficulty in analyzing information and communication technology (ICT) in organizational communication is the unintentional split between information processes perspectives and human communication perspectives in the discussions of workplace technology. By merging two constructs, organizational informatics and organizational sensemaking, this paper develops a communicative organizational informatics (COI) framework, which provides a robust perspective on how people communicate through the uses of technology in organizational settings. This communicative informatics framework offers a powerful lens to study the meanings, understandings, uses and gratifications, and potentials of technology in organizations and how it can facilitate workplace communication. A COI analysis of a personal digital assistant (PDA), a Palm VII, with a live wireless connection to a company sales database is examined by applying a usability testing methodology.

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Katterbauer, Klemens, i Abdallah Al Shehri. "Smart MIMO-OFDM Wireless Communication Frameworks for Subsurface Wireless Sensor". W SPE Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210750-ms.

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Abstract Wireless communication in subsurface wells and reservoir has been a major challenge in ensuring robust data transmission, and reliable communication between the sensors. Challenges from the multiple reflection as well as other external factors, makes subsurface communication a unique challenge for modern communication algorithms. While multiple-Input, multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) communication has been extensively implemented in wireless communication for signal processing, unique challenges arise in subsurface reservoirs caused by unknown formation properties and fluid movements. We present a new smart MIMO-OFDM algorithm for wireless communication in subsurface reservoirs. The new algorithm integrates both MIMO and OFDM into a deep learning framework. It optimizes the communication quality as well as reliability of the communication between the various subsurface wireless devices. The joint integration and smart adjustment leverages the power of both algorithms simultaneously, and allows significantly improved communication robustness between the wireless devices. We tested the smart MIMO-OFDM on a synthetic carbonate reservoir formation with multiple wireless sensors and wireless appliances. Fracture Robots (FracBots, about 5 mm in size) technology will be used to sense key reservoir parameters (e.g., temperature, pressure, pH and other chemical parameters). The technology is comprised of a wireless microsensor network for mapping and monitoring fracture channels in conventional and unconventional reservoirs. The system establishes wireless network connectivity via magnetic induction (MI)-based communication, since it exhibits highly reliable and constant channel conditions with sufficiently communication range inside an oil reservoir environment. The results exhibited strong performance of the wireless communication, hence providing reliable and robust subsurface wireless communication. The novel framework presents a vital component in enhancing subsurface wireless communication and achieve robust data transfer. The results outline the opportunity for wireless communication to become a critical component for subsurface communication.

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J. M., Aravind, i Arul Teen Y. P. "Oceanic Turbulence and Beam Propagation Characteristics of Underwater Optical Wireless Communication: A Brief Survey". W The International Conference on scientific innovations in Science, Technology, and Management. International Journal of Advanced Trends in Engineering and Management, 2023. http://dx.doi.org/10.59544/tgts6433/ngcesi23p92.

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Underwater wireless communication (UWC) means the transmission of information using wireless channels through the underwater, i.e. radio frequency waves (RF), acoustic waves and optical waves in an unguided water environment. In this review article we focus on underwater optical wireless communications (UWOCs) using optical waves as transmission medium. UWOCs have a much higher communication frequency and therefore a much higher data rate compared to RF and acoustic counter-parts. Due to this high-speed data transfer advantage, UWOC has been very attractive over the past few years. Many application shave been proposed in UWOC systems for protection of the environment, underwater exploration, emergency alerts and military operations etc. However, underwater absorption, scattering and turbulence processes will introduce attenuation and fading to light propagation and then degrade the performance of underwater wireless optical communications (UWOC). In this review paper we give a detailed overview of turbulence and beam propagation characteristics of different water bodies in UWOC.

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"Wireless communication". W 2008 International Symposium on Telecommunications. IEEE, 2008. http://dx.doi.org/10.1109/istel.2008.4651426.

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Shin, Daekyo, Soohyun Jang i Pusik Park. "A Test Result on the Performance of Next Generation ITS Communication in the Railway Environment". W 2017 Joint Rail Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/jrc2017-2202.

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Recently the demand of wireless communications technology in railway field has increased for the purpose of safe operation and economical construction and reducing operating costs. The real implementation test was carried out in order to apply the next generation ITS wireless communication technology (WAVE: Wireless Access Vehicular Environment) to the railway. WAVE communication is suitable for high-speed environment, have a reliable wireless communication performance. This paper presents the results of test about installing the WAVE base station / WAVE Terminal for applying to the railway and measure the performance evaluation conducted.

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Deng, Qiuzhuo, Lu Zhang, Hongqi Zhang, Zuomin Yang, Xiaodan Pang, Vjačeslavs Bobrovs, Sergei Popov i in. "Quantum Noise Secured Terahertz Communications". W Optical Fiber Communication Conference. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/ofc.2023.w2a.33.

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The quantum noise based terahertz signal encryption scheme is proposed, a 16 Gbits-1 secure terahertz communication system at 300 GHz with the optical communication realms is demonstrated, taking a significant step toward high-security wireless communications.

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Zhong, Xu, i Yu Zhou. "Establishing and Maintaining Wireless Communication Coverage Among Multiple Mobile Robots via Fuzzy Control". W ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47989.

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This paper addresses the critical issue of establishing and maintaining desired wireless communication connectivity in a team of collaborative mobile robots, which is highly demanded for reliable functioning of multi-robot systems but challenging in realistic environments. The signal propagation of wireless communications among mobile robots is affected by not only the transmission power and distance but also obstacles and other environmental conditions as well as robot movement, which result in signal loss, attenuation, multi-path fading and shadowing. Consequently, the communication condition among mobile robots in a physical environment is usually unstable, and it is difficult to accurately predict the actual communication ranges of robots. We propose a decentralized control strategy which, based on perceived link quality, adopts fuzzy control to accommodate the fluctuating communication condition, and approach and maintain desired and reliable communication connections among neighboring robots. The effectiveness of the proposed scheme has been verified in several simulated environments with different signal propagation conditions based on a probabilistic signal propagation model.

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Ahn, Chang Wook, i Jong-Hyun Lee. "Wireless cooperative communication". W the 5th International Confernece. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/1968613.1968707.

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"Session - Wireless Communication". W 2004 IEEE International Workshop on Factory Communication Systems. Proceedings. IEEE, 2004. http://dx.doi.org/10.1109/wfcs.2004.1377678.

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Basnayaka, Dushyantha A. "Mediumband Wireless Communication". W 2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall). IEEE, 2022. http://dx.doi.org/10.1109/vtc2022-fall57202.2022.10012908.

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Raporty organizacyjne na temat "Wireless communication"

Glatzmaier, Greg. Multi-Heliostat Wireless Communication Assessment. Office of Scientific and Technical Information (OSTI), czerwiec 2014. http://dx.doi.org/10.2172/1505157.

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Rajaravivarma, Veeramuthu, i Krishna Sivalingam. Wireless Connectivity to ATM Communication Grid. Fort Belvoir, VA: Defense Technical Information Center, sierpień 1998. http://dx.doi.org/10.21236/ada367858.

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Tassiulas, Leandros. Research Problems in Wireless Communication Networks. Fort Belvoir, VA: Defense Technical Information Center, marzec 1998. http://dx.doi.org/10.21236/ada380014.

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Street, Thomas T., Xuan Nguyen i Frederick W. Williams. Wireless Communication Technologies on ex-USS Shadwell. Fort Belvoir, VA: Defense Technical Information Center, lipiec 2002. http://dx.doi.org/10.21236/ada405185.

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Wornell, Gregory W. Efficient Symbol-Spreading Strategies for Wireless Communication. Fort Belvoir, VA: Defense Technical Information Center, październik 1994. http://dx.doi.org/10.21236/ada459393.

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Pursley, Michael B. Cognitive Radio for Tactical Wireless Communication Networks. Fort Belvoir, VA: Defense Technical Information Center, październik 2011. http://dx.doi.org/10.21236/ada558881.

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Brazaitis, Michael P. Wireless Communication of STAT Radiology Reporting Pilot Study. Fort Belvoir, VA: Defense Technical Information Center, wrzesień 2004. http://dx.doi.org/10.21236/ada612166.

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Li, Xiao. Nonlinearity Analysis and Predistortion of 4G Wireless Communication Systems. Portland State University Library, styczeń 2000. http://dx.doi.org/10.15760/etd.992.

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Varanasi, Mahesh K. Efficiently Decodable Codes for Noncoherent Multi-Antenna Wireless Communication. Fort Belvoir, VA: Defense Technical Information Center, maj 2004. http://dx.doi.org/10.21236/ada424949.

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Van Leeuwen, Brian P., i John M. Eldridge. Emulation Platform for Cyber Analysis of Wireless Communication Network Protocols. Office of Scientific and Technical Information (OSTI), listopad 2017. http://dx.doi.org/10.2172/1410244.

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