Academic literature on the topic 'RF over IP'
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Journal articles on the topic "RF over IP"
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Shi, Bing Yin, and Jian Hong Zheng. "ASIC Designing and Implementation of RFFE." Applied Mechanics and Materials 427-429 (September 2013): 2481–84. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.2481.
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MIPI RF Frond-End Control Interface (RFFE) is a specification of a bus interface specifically designed for the needs of current and future mobile wireless systems to control the slave devices in an RF front-end.This new technique has so many advantages over I2C and SPI interface.So in this article I give an overview of MIPI RFFE and the stratege to realize the IP for RFFE,finally I describe the results getting from simulating the IP through VCS.It is convenient to implement and control the specified IP,and which can be used wisely in so much fields.
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Chauvenet, Cedric, Bernard Tourancheau, Denis Genon-Catalot, Pierre-Emmanuel Goudet, and Mathieu Pouillot. "Interoperable IPv6 Sensor Networking over PLC and RF Media." International Journal of Business Data Communications and Networking 6, no. 4 (October 2010): 1–20. http://dx.doi.org/10.4018/jbdcn.2010100101.
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The evolution of technology has made the connection of all types of devices to IP networks possible. In this paper, the authors investigate the possible usage of IPv6 in sensor networks connected through the Power Line Communication (PLC) non-wireless medium and demonstrate possible interoperability. This work is based on the adaptation of the IEEE 802.15.4 standard protocol constrained by the low-power, lossy and low data-rate context of PLC transceiver that uses pulse modulation. The aim is to provide interoperability features with other media using a robust and reliable communication stack. The target application of such results ranges from smart metering and environment monitoring to home control and urban area energy efficiency applications. This paper proposes the first adaptation of the IEEE 802.15.4 standard commons for the PLC medium. Following this standard interface, the authors demonstrate data communication on PLC with low power energy requirement using the pulse PLC physical layer. This paper also presents an initial implementation of the Routing Protocol for Low power and lossy networks (RPL) setup proposed by the IETF working group. In this context, the authors demonstrate interoperability in a testbed between PLC and Wireless Sensor Networks (WSN).
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Humphreys, Jennifer H., Marije K. Verheul, Anne Barton, Alexander J. MacGregor, Mark Lunt, Rene EM Toes, Deborah PM Symmons, Leendert A. Trouw, and Suzanne MM Verstappen. "Anticarbamylated protein antibodies are associated with long-term disability and increased disease activity in patients with early inflammatory arthritis: results from the Norfolk Arthritis Register." Annals of the Rheumatic Diseases 75, no. 6 (October 6, 2015): 1139–44. http://dx.doi.org/10.1136/annrheumdis-2015-207326.
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ObjectivesAnticarbamylated protein (anti-CarP) antibodies are a novel family of autoantibodies recently identified in patients with inflammatory arthritis. The aim of this study was to investigate their association with long-term outcomes of disability and disease activity over 20 years’ follow-up in a cohort of patients with inflammatory polyarthritis (IP).MethodsNorfolk Arthritis Register recruited adults with recent-onset swelling of ≥2 joints for ≥4 weeks from 1990 to 2009. At baseline, Health Assessment Questionnaire (HAQ) and 28 joint disease activity scores (DAS28) were obtained, and C reactive protein, rheumatoid factor (RF), anticitrullinated protein antibodies (ACPA) and anti-CarP antibodies were measured. Further HAQ scores and DAS28 were obtained at regular intervals over 20 years. Generalised estimating equations were used to test the association between anti-CarP antibody status and longitudinal HAQ and DAS28 scores; adjusting for age, gender, smoking status, year of inclusion and ACPA status. Analyses were repeated in subgroups stratified by ACPA status. The relative association of RF, ACPA and anti-CarP antibodies with HAQ and DAS28 scores was investigated using a random effects model.Results1995 patients were included; 1310 (66%) were female. Anti-CarP antibodies were significantly associated with more disability and higher disease activity, HAQ multivariate β-coefficient (95% CI) 0.12 (0.02 to 0.21), and these associations remained significant in the ACPA-negative subgroups. The associations of RF, ACPA and anti-CarP antibodies were found to be additive in the random effects model.ConclusionsAnti-CarP antibodies are associated with increased disability and higher disease activity in patients with IP. Our results suggest that measurement of anti-CarP antibodies may be useful in identifying ACPA-negative patients with worse long-term outcomes. Further, anti-CarP antibody status provided additional information about RF and ACPA.
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Cheung, S. W., and A. H. Aghvami. "Performance of a 16-ARY DEQAM modem employing a baseband or RF predistorter over a regenerative satellite link." IEE Proceedings F Communications, Radar and Signal Processing 135, no. 6 (1988): 547. http://dx.doi.org/10.1049/ip-f-1.1988.0065.
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Palacios-Peña, Laura, Rocío Baró, Juan Luis Guerrero-Rascado, Lucas Alados-Arboledas, Dominik Brunner, and Pedro Jiménez-Guerrero. "Evaluating the representation of aerosol optical properties using an online coupled model over the Iberian Peninsula." Atmospheric Chemistry and Physics 17, no. 1 (January 5, 2017): 277–96. http://dx.doi.org/10.5194/acp-17-277-2017.
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Abstract. The effects of atmospheric aerosol particles on the Earth's climate mainly depend on their optical, microphysical and chemical properties, which modify the Earth's radiative budget. The aerosol radiative effects can be divided into direct and semi-direct effects, produced by the aerosol–radiation interactions (ARIs), and indirect effects, produced by aerosol–cloud interactions (ACIs). In this sense the objective of this work is to assess whether the inclusion of aerosol radiative feedbacks in the online coupled WRF-Chem model improves the modelling outputs over the Iberian Peninsula (IP) and surrounding water areas. For this purpose, the methodology is based on the evaluation of modelled aerosol optical properties under different simulation scenarios. The evaluated data come from two WRF-Chem simulations for the IP differing in the inclusion/no-inclusion of ARIs and ACIs (RF/NRF simulations). The case studies cover two episodes with different aerosol types over the IP in 2010, namely a Saharan dust outbreak and a forest fire episode. The evaluation uses observational data from AERONET (Aerosol Robotic Network) stations and MODIS (Moderate Resolution Imaging Spectroradiometer) sensor, including aerosol optical depth (AOD) and Ångström exponent (AE). Experimental data of aerosol vertical distribution from the EARLINET (European Aerosol Research Lidar Network) Granada station are used for checking the models. The results indicate that for the spatial distribution the best-represented variable is AOD and the largest improvements when including the aerosol radiative feedbacks are found for the vertical distribution. In the case of the dust outbreak, a slight improvement (worsening) is produced over the areas with medium (high/low) levels of AOD(−9 % / +12 % of improvement) when including the aerosol radiative feedbacks. For the wildfire episode, improvements of AOD representation (up to 11 %) over areas further away from emission sources are estimated, which compensates for the computational effort of including aerosol feedbacks in the simulations. No clear improvement is observed for the AE representation, the variability of which is largely underpredicted by both simulations.
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Jiang, Xiao, Peng Li, Bin Li, Yulong Zou, and Ruchuan Wang. "Security-Reliability Tradeoff for Friendly Jammer Aided Multiuser Scheduling in Energy Harvesting Communications." Security and Communication Networks 2021 (April 3, 2021): 1–16. http://dx.doi.org/10.1155/2021/5599334.
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In this paper, we investigate the physical-layer security in an energy-harvesting (EH) multiuser network with the help of a friendly jammer (J), where multiple eavesdroppers are considered to tap the information transmission from users (Us) to base station (BS). In this system, a power beacon (PB) transmits radio frequency (RF) signals to Us for charging. In order to enhance the security of wireless transmission, we propose non-energy-aware multiuser scheduling (NEAMUS) scheme and energy-aware multiuser scheduling (EAMUS) scheme. For the purpose of comparison, we introduce conventional round robin multiuser scheduling (CRRMUS) scheme. The closed-form outage probability (OP) and intercept probability (IP) expressions of NEAMUS, EAMUS, and CRRMUS schemes are derived over Rayleigh fading channels. Additionally, we analyze the security-reliability tradeoff (SRT) of NEAMUS, EAMUS, and CRRMUS schemes in terms of OP and IP. Numerical results show that the proposed EAMUS scheme is superior to the CRRMUS scheme and NEAMUS scheme in terms of SRT, demonstrating the advantage of the proposed EAMUS scheme in improving the physical-layer security and reliability. Moreover, SRT performance of NEAMUS and EAMUS schemes can also be improved by increasing the number of users.
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Schulz, N., A. Chanda, G. Datt, M. Venkata Kamalakar, T. Sarkar, M. H. Phan, and H. Srikanth. "Proximity enhanced magnetism at NiFe2O4/Graphene interface." AIP Advances 12, no. 3 (March 1, 2022): 035132. http://dx.doi.org/10.1063/9.0000271.
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Here, we explore the change in effective magnetic anisotropy of the ferrimagnetic (FM) insulator nickel ferrite (NFO) thin film due to the inclusion of monolayer graphene (MLG) grown on top of the NFO layer. This was done by performing radio frequency (RF) transverse susceptibility (TS) measurements on bare NFO and NFO/MLG bilayer samples for both in-plane (IP) and out-of-plane (OOP) configurations utilizing a tunnel diode oscillator technique. Our magnetometry measurements indicated an enhancement in the overall saturation magnetization of the NFO/MLG bilayer with respect to the bare NFO film. The TS measurements reveal that the inclusion of MLG reduces the effective magnetic anisotropy for both IP and OOP configurations drastically, by up to a factor of 2 over the temperature range 40 K ≤ T ≤ 280 K. Since NFO is a magnetic substrate, it is possible that NFO could induce magnetic ordering in MLG at the NFO/MLG interface via the magnetic proximity effect. Furthermore, since NFO is insulating and MLG is a semimetal, there likely exists a large conductivity difference at the interface, making charge transfer plausible. These two effects could modify the interfacial magnetism leading to a change in the effective magnetic anisotropy. These results highlight the importance of understanding the interfacial magnetism of FM/MLG heterostructures.
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Stojce Ilcev, Dimov. "Satellite DVB-RCS VSAT standards for fixed and mobile applications." International Journal of Engineering & Technology 7, no. 4 (December 17, 2018): 4195–200. http://dx.doi.org/10.14419/ijet.v7i4.21129.
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The growing demand for communications bandwidth over all wireless media has motivated the introduction of compact satellite com-munications solutions that provide bi-directional services at greater than 90 Mb/s known as Digital Video Broadcasting-Return Channel via Satellite (DVB-RCS). Current applications may demand rapid installation at fixed locations as well as mobile platforms, such as stationary and moving vehicles, manned and unmanned aircraft, and ships on the oceans. More than a basic introduction, this course presents the specific approaches for designing a broadband satellite network using L/C, Ku, and Ka-bands, and should allow participants to configure major space and ground architecture, evaluate sources of antennas technology, RF electronics, and select the most appropri-ate satellite architecture, spot or regional coverage, bandwidth and services. Applications to commercial and government users are de-scribed as well as compliance with international radio regulations. This paper will provide a case study of the implementation of DVB-RCS scenario for Military Applications for Navy, Land and Aeronautical military platforms. The design and implementation DVB-RCS satellite constellation, development ground infrastructure of the Hub or Gateway as Ground Earth Station (GES) with antenna system and users network, the return link demodulation method, resource management scheme, fixed and mobile terminal structure including antenna configurations are described. The paper also addresses DVB-RCS applications that provide both IPTV and IPPC high-speed Internet base on DVB-S/DVB-RCS standards to the commercial and military passengers and crews for land, maritime and air vehicles, including E-education, E-medicine, E-banking (ATM), Defense Information Management (DIM), Voice over IP and Voice, Data and Video over IP (VDVoIP) and so on.Â
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Dipon, Wasim, Bryan Gamboa, Maximilian Estrada, William Paul Flynn, Ruyan Guo, and Amar Bhalla. "Self-Sustainable IoT-Based Remote Sensing Powered by Energy Harvesting Using Stacked Piezoelectric Transducer and Thermoelectric Generator." Micromachines 14, no. 7 (July 15, 2023): 1428. http://dx.doi.org/10.3390/mi14071428.
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We propose a self-powered remote multi-sensing system for traffic sensing which is powered by the collective energy harvested from the mechanical vibration of the road caused by the passing vehicles and from the temperature gradient between the asphalt of the road and the soil underneath. A stacked piezoelectric transducer converts mechanical vibrations into electrical energy and a thermoelectric generator harvests the thermal energy from the thermal gradient. Electrical energy signals from the stacked piezoelectric transducer and the thermoelectric generators are converted into usable DC power to recharge the battery using AC-DC and DC-DC converters working simultaneously. The multi-sensing system comprises an embedded system with a microcontroller that acquires data from the sensors and sends the sensory data to an IoT transceiver which transmits the data as RF packets to an ethernet gateway. The gateway converts the RF packets into Internet Protocol (IP) packets and sends them to a remote server. Laboratory and road-testing results showed over 98% sensory data accuracy with the system functioning solely powered by the energy harvested from the alternative energy sources. The successful maximum transmission distance obtained between the IoT, and the gateway was approximately 1 mile, which is a considerable transmission distance achieved in an urban environment. Successful operation of the self-powered multi-sensing system under both laboratory and road conditions contributes considerably to the fields of energy harvesting and self-powered remote sensing systems. The energy flow chart and efficiency for the steps in the system were found to be mechanical power from vehicles to the energy harvester of 0.25%, stacked PZT transducer efficiency was found to be 37%, and for the TEGs the efficiency is 11%. AC-to-DC and DC-to-DC converters’ efficiencies were found to be 90% and 11%. The wireless communication RF transceiver efficiency was found to be 62.5%.
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Abu Al-Haija, Qasem, Manar Alohaly, and Ammar Odeh. "A Lightweight Double-Stage Scheme to Identify Malicious DNS over HTTPS Traffic Using a Hybrid Learning Approach." Sensors 23, no. 7 (March 27, 2023): 3489. http://dx.doi.org/10.3390/s23073489.
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The Domain Name System (DNS) protocol essentially translates domain names to IP addresses, enabling browsers to load and utilize Internet resources. Despite its major role, DNS is vulnerable to various security loopholes that attackers have continually abused. Therefore, delivering secure DNS traffic has become challenging since attackers use advanced and fast malicious information-stealing approaches. To overcome DNS vulnerabilities, the DNS over HTTPS (DoH) protocol was introduced to improve the security of the DNS protocol by encrypting the DNS traffic and communicating it over a covert network channel. This paper proposes a lightweight, double-stage scheme to identify malicious DoH traffic using a hybrid learning approach. The system comprises two layers. At the first layer, the traffic is examined using random fine trees (RF) and identified as DoH traffic or non-DoH traffic. At the second layer, the DoH traffic is further investigated using Adaboost trees (ADT) and identified as benign DoH or malicious DoH. Specifically, the proposed system is lightweight since it works with the least number of features (using only six out of thirty-three features) selected using principal component analysis (PCA) and minimizes the number of samples produced using a random under-sampling (RUS) approach. The experiential evaluation reported a high-performance system with a predictive accuracy of 99.4% and 100% and a predictive overhead of 0.83 µs and 2.27 µs for layer one and layer two, respectively. Hence, the reported results are superior and surpass existing models, given that our proposed model uses only 18% of the feature set and 17% of the sample set, distributed in balanced classes.
Dissertations / Theses on the topic "RF over IP"
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Piana, Thibault. "Étude et développement de techniques de compression pour les signaux de télécommunications en bande de base." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2024. http://www.theses.fr/2024IMTA0424.
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Cette thèse examine la compression de signaux pour améliorer l’efficacité de la bande passante dans les communications satellitaires, en se concentrant sur les architectures Cloud Radio Access Networks (C-RAN) pour le segment sol. Réalisée sous contrat CIFRE avec Safran Data Systems et encadrée par le Lab-STICC, cette recherche explore les techniques de compression des signaux RF en bande de base, essentielles pour maintenir une haute fidélité des données transmises entre les stations terrestres et les satellites. L’étude s’appuie sur des avancées comme le Ground Station as a Service (GSaaS), qui permet une gestion optimisée des ressources. Elle aborde spécifiquement les défis liés à la compression efficace des larges bandes passantes utilisées, nécessitant des techniques innovantes pour réduire la charge sur les réseaux terrestres sans compromettre la qualité des signaux. Les méthodes de compression sans perte et avec perte sont évaluées, avec une attention particulière aux techniques de compression basée sur des dictionnaires pour leur efficacité en termes de parcimonie et aux méthodes prédictives pour leur capacité à minimiser les écarts entre prédictions et valeurs réelles. Cette recherche illustre un potentiel significatif pour améliorer la gestion des données dans les communications satellitaires, offrant des solutions viables pour les défis actuels et futurs de la compression de donnéesThis thesis investigates signal compression to enhance bandwidth efficiency in satellite communications, focusing on Cloud Radio Access Network (C-RAN) architectures for the ground segment. Conducted under a CIFRE contract with Safran Data Systems and supervised by Lab-STICC, this research explores the techniques of RF baseband signal compression, crucial for maintaining high fidelity of data transmitted between terrestrial stations and satellites. The study leverages advances such as Ground Station as a Service (GSaaS), which facilitates optimized resource management. It specifically addresses the challenges associated with efficiently compressing the wide bandwidths used, which requires innovative techniques to reduce the load on terrestrial networks without compromising signal quality. Lossless and lossy compression methods are evaluated, with particular emphasis on dictionary-based compression techniques for their efficiency in sparsity, and predictive methods for their ability to minimize discrepancies between predicted and actual values. This research demonstrates significant potential to improve data management in satellite communications, offering viable solutions for current and future data compression challenges
Book chapters on the topic "RF over IP"
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Chauvenet, Cedric, Bernard Tourancheau, Denis Genon-Catalot, Pierre-Emmanuel Goudet, and Mathieu Pouillot. "Interoperable IPv6 Sensor Networking over PLC and RF Media." In Next Generation Data Communication Technologies, 266–85. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-61350-477-2.ch012.
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The evolution of technology has made the connection of all types of devices to IP networks possible. In this paper, the authors investigate the possible usage of IPv6 in sensor networks connected through the Power Line Communication (PLC) non-wireless medium and demonstrate possible interoperability. This work is based on the adaptation of the IEEE 802.15.4 standard protocol constrained by the low-power, lossy and low data-rate context of PLC transceiver that uses pulse modulation. The aim is to provide interoperability features with other media using a robust and reliable communication stack. The target application of such results ranges from smart metering and environment monitoring to home control and urban area energy efficiency applications. This paper proposes the first adaptation of the IEEE 802.15.4 standard commons for the PLC medium. Following this standard interface, the authors demonstrate data communication on PLC with low power energy requirement using the pulse PLC physical layer. This paper also presents an initial implementation of the Routing Protocol for Low power and lossy networks (RPL) setup proposed by the IETF working group. In this context, the authors demonstrate interoperability in a testbed between PLC and Wireless Sensor Networks (WSN).
Conference papers on the topic "RF over IP"
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Knittle, C., and D. Piehler. "RF/IP hybrid network for video delivery over FTTP." In 2005 Optical Fiber Communications Conference Technical Digest. IEEE, 2005. http://dx.doi.org/10.1109/ofc.2005.192793.
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