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The multi-user diversity in spectrum sharing cognitive radio systems with average power constraints over fading channels is investigated. Average power constraints are imposed for both the transmit power at the secondary transmitter and the…

Information Theory · Computer Science 2013-12-14 Fotis Foukalas , Tamer Khattab , H. Vincent Poor

The secrecy outage performance of wireless communication systems operating over spatially correlated composite fading channels is analyzed in this paper. We adopt a multiplicative composite channel model for both the legitimate…

Information Theory · Computer Science 2017-10-04 George C. Alexandropoulos , Kostas P. Peppas

This paper studies the interference channel with two transmitters and two receivers in the presence of a MIMO relay in the low transmit power regime. A communication scheme combining block Markov encoding, beamforming, and Willems' backward…

Information Theory · Computer Science 2009-10-21 Anas Chaaban , Aydin Sezgin

The performance of linear receivers in the presence of co-channel interference in Rayleigh channels is a fundamental problem in wireless communications. Performance evaluation for these systems is well-known for receive arrays where the…

Information Theory · Computer Science 2016-11-17 Dushyantha A. Basnayaka , Peter J. Smith , Philippa A. Martin

This paper studies multi-antenna-aided covert communications coexisting with randomly located wardens and interferers, considering both centralized and distributed antenna systems (CAS/DAS). The throughput performance of the covert…

Information Theory · Computer Science 2019-02-20 Tong-Xing Zheng , Hui-Ming Wang , Derrick Wing Kwan Ng , Jinhong Yuan

The performance of the V-BLAST approach, which utilizes successive interference cancellation (SIC) with optimal ordering, over independent Nakagami-m fading channels is studied. Systems with two transmit and n receive antennas are employed…

Information Theory · Computer Science 2013-02-20 Nikolaos I. Miridakis , Dimitrios D. Vergados

In the next few years, the development of wireless communication systems propel the world into a fully connected society where the Machine-type Communications (MTC) plays a substantial role as key enabler in the future cellular systems. MTC…

Information Theory · Computer Science 2018-01-24 Parisa Nouri , Hirley Alves , Richard Demo Souza , Matti Latva-aho

In this paper, the performance of a power domain downlink multiple-input multiple-output non-orthogonal multiple access system in dual-hop full-duplex (FD) relaying networks is investigated over Nakagami-$m$ fading channels by considering…

Information Theory · Computer Science 2021-09-28 Mesut Toka , Eray Guven , Mehmet Akif Durmaz , Gunes Karabulut Kurt , Oguz Kucur

As the traffic safety has become of utmost importance, much attention is given to intelligent transportation systems (ITSs), and more particularly to vehicular communications (VCs). Moreover, 50 % of all crashes happen at road…

Information Theory · Computer Science 2020-03-18 Baha Eddine Youcef Belmekki , Abdelkrim Hamza , Benoît Escrig

This article investigates the robustness of rate-splitting multiple access (RSMA) in multi-user multiple-input single-output (MISO) systems to interference attacks against channel acquisition induced by beyond-diagonal RISs (BD-RISs). Two…

Signal Processing · Electrical Eng. & Systems 2026-02-19 Arthur S. de Sena , Jacek Kibilda , Nurul H. Mahmood , Andre Gomes , Luiz A. DaSilva , Matti Latva-aho

This paper studies the precoder design problem of achieving max-min fairness (MMF) amongst users in multigateway multibeam satellite communication systems with feeder link interference. We propose a beamforming strategy based on a newly…

Information Theory · Computer Science 2021-02-12 Zhi Wen Si , Longfei Yin , Bruno Clerckx

In this paper, multiple metrics are presented in order to jointly evaluate the performance of the radar and communication functions in scenarios involving Dual Function Radar Communication (DFRC) systems using stochastic geometry. These…

Signal Processing · Electrical Eng. & Systems 2022-08-30 François De Saint Moulin , Charles Wiame , Luc Vandendorpe , Claude Oestges

Non-orthogonal multiple access (NOMA) and spectrum sharing (SS) are two emerging multiple access technologies for efficient spectrum utilization in future wireless communications standards. In this paper, we present the performance analysis…

Information Theory · Computer Science 2019-09-25 Vaibhav Kumar , Barry Cardiff , Mark. F. Flanagan

In mixed near-field and far-field systems, the nonorthogonality between near-field and far-field channels may cause severe inter-user interference and hence degrade rate performance, when the analog beamforming is designed based on the…

Signal Processing · Electrical Eng. & Systems 2026-03-10 Tianyu Liu , Changsheng You , Chao Zhou , Mingjiang Wu , Ming-Min Zhao , Zhaocheng Wang

In this paper, we investigate the performance analysis of dual hop relaying system consisting of asymmetric Radio Frequency (RF)/Free Optical Space (FSO) links. The RF channels follow a Rayleigh distribution and the optical links are…

Signal Processing · Electrical Eng. & Systems 2019-01-17 Elyes Balti , Mohsen Guizani , Bechir Hamdaoui , Yassine Maalej

Interference in wireless systems is both temporally and spatially correlated. Yet very little research has analyzed the effect of such correlation. Here we focus on its impact on the diversity in Poisson networks with multi-antenna…

Information Theory · Computer Science 2012-04-23 Martin Haenggi

Recently proposed multiple input multiple output radars based on matrix completion (MIMO-MC) employ sparse sampling to reduce the amount of data that need to be forwarded to the radar fusion center, and as such enable savings in…

Information Theory · Computer Science 2016-08-24 Bo Li , Athina P. Petropulu , Wade Trappe

In this correspondence, the comprehensive problem of joint power, rate, and subcarrier allocation have been investigated for enhancing the spectral efficiency of multi-user orthogonal frequency-division multiple access (OFDMA) cognitive…

Information Theory · Computer Science 2017-09-14 H. Saki , M. Shikh Bahaei

In this paper, we investigate performance improvements of low-power long-range (LoRa) modulation when a gateway is equipped with multiple antennas. We derive the optimal decision rules for both coherent and non-coherent detections when…

Signal Processing · Electrical Eng. & Systems 2021-06-23 The Khai Nguyen , Ha H. Nguyen , Ebrahim Bedeer

By recognizing the tremendous flexibility of the emerging fluid antenna system (FAS), which allows dynamic reconfigurability of the location of the antenna within a given space, this paper investigates the performance of a single-antenna…

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