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In spectrum-sharing cognitive radio systems, the transmit power of secondary users has to be very low due to the restrictions on the tolerable interference power dictated by primary users. In order to extend the coverage area of secondary…

Information Theory · Computer Science 2013-11-22 Minghua Xia , Sonia Aïssa

We consider a multi-way massive multiple-input multiple-output relay network with zero-forcing processing at the relay. By taking into account the time-division duplex protocol with channel estimation, we derive an analytical approximation…

Information Theory · Computer Science 2017-01-04 Chung Duc Ho , Hien Quoc Ngo , Michail Matthaiou , Trung Q. Duong

A non-regenerative dual-hop wireless system based on a distributed space-time coding strategy is considered. It is assumed that each relay retransmits an appropriately scaled space-time coded version of its received signal. The main goal of…

Information Theory · Computer Science 2016-11-18 Jamshid Abouei , Hossein Bagheri , Amir K. Khandani

This paper investigates the throughput for wireless network with full-duplex radios using stochastic geometry. Full-duplex (FD) radios can exchange data simultaneously with each other. On the other hand, the downside of FD transmission is…

Information Theory · Computer Science 2015-02-27 Zhen Tong , Martin Haenggi

The challenge to in-band full-duplex wireless communication is managing self-interference. Many designs have employed spatial isolation mechanisms, such as shielding or multi-antenna beamforming, to isolate the self-interference wave from…

Information Theory · Computer Science 2014-04-10 Evan Everett , Ashutosh Sabharwal

We study a cooperative network with a buffer-aided multi-antenna source, multiple half-duplex (HD) buffer-aided relays and a single destination. Such a setup could represent a cellular downlink scenario, in which the source can be a more…

Information Theory · Computer Science 2018-09-18 Themistoklis Charalambous , Su Min Kim , Nikolaos Nomikos , Mats Bengtsson , Mikael Johansson

In this paper, an energy-efficient cross-layer design framework is proposed for cooperative relaying networks, which takes into account the influence of spectrum utilization probability. Specifically, random arrival traffic is considered…

Signal Processing · Electrical Eng. & Systems 2020-02-28 Kunlun Wang , Qingqing Wu , Wen Chen , Yang Yang , Derrick Wing Kwan Ng

In this paper, a multiple-relay network in considered, in which $K$ single-antenna relays assist a single-antenna transmitter to communicate with a single-antenna receiver in a half-duplex mode. A new Amplify and Forward (AF) scheme is…

Information Theory · Computer Science 2007-10-01 Shahab Oveis Gharan , Alireza Bayesteh , Amir K. khandani

This paper considers the setup of a parallel MIMO relay network in which $K$ relays, each equipped with $N$ antennas, assist the transmitter and the receiver, each equipped with $M$ antennas, in the half-duplex mode, under the assumption…

Information Theory · Computer Science 2007-07-13 Shahab Oveis Gharan , Alireza Bayesteh , Amir K. Khandani

We consider a spectrum-sharing network where n secondary relays are used to increase secondary rate and also mitigate interference on the primary by reducing the required overall secondary emitted power. We propose a distributed relay…

Information Theory · Computer Science 2012-10-05 Yang Li , Aria Nosratinia

In this paper, we investigate the problem of two-way relay beamforming optimization to maximize the achievable sum-rate of a simultaneous wireless information and power transfer (SWIPT) system with a full-duplex (FD) multiple-input…

Information Theory · Computer Science 2017-03-23 Alexander A. Okandeji , Muhammad R. A. Khandaker , Kai-Kit Wong

In this paper, the filter-and-forward (FF) relay design for orthogonal frequency-division multiplexing (OFDM) transmission systems is considered to improve the system performance over simple amplify-and-forward (AF) relaying. Unlike…

Information Theory · Computer Science 2015-03-20 Donggun Kim , Junyeong Seo , Youngchul Sung

This letter studies bi-directional secure information exchange in a simultaneous wireless information and power transfer (SWIPT) system enabled by a full-duplex (FD) multiple-input multiple-output (MIMO) amplify-and-forward (AF) relay. The…

Information Theory · Computer Science 2017-09-26 Alexander A. Okandeji , Muhammad R. A. Khandaker , Kai-Kit Wong , Gan Zheng , Yangyang Zhang , Zhongbin Zheng

In this paper, we study a multi-user multi-relay interference-channel network, where energy-constrained relays harvest energy from sources' radio frequency (RF) signals and use the harvested energy to forward the information to…

Information Theory · Computer Science 2017-05-24 Man Chu , Biao He , Xuewen Liao , Zhenzhen Gao , Shihua Zhu

To increase the spectral efficiency of wireless networks without requiring full-duplex capability of user devices, a potential solution is the recently proposed three-node full-duplex mode. To realize this potential, networks employing…

Information Theory · Computer Science 2017-02-25 Jose Mairton B. da Silva , Gabor Fodor , Carlo Fischione

This paper studies the performance of some state-of-the-art cooperative full-duplex relaying protocols in the context of a large wireless network modelled using stochastic geometry tools. We investigate the outage behaviour for different…

Information Theory · Computer Science 2018-01-12 Andres Altieri , Pablo Piantanida

This paper considers an amplify-and-forward relay network with fading states. Amplify-and-forward scheme (along with its variations) is the core mechanism for enabling cooperative communication in wireless networks, and hence understanding…

Information Theory · Computer Science 2009-08-06 Jubin Jose , Lei Ying , Sriram Vishwanath

In this work, we study the benefit of partial relay cooperation. We consider a two-node system consisting of one source and one relay node transmitting information to a common destination. The source and the relay have external traffic and…

Information Theory · Computer Science 2017-08-23 Nikolaos Pappas , Jeongho Jeon , Di Yuan , Apostolos Traganitis , Anthony Ephremides

In this letter, we proposed a shared-antenna full-duplex massive MIMO model for the multiuser MIMO system. This model exploits a single antenna array at the base station (BS) to transmit and receive the signals simultaneously. It has the…

Information Theory · Computer Science 2015-10-02 Pengbo Xing , Ju Liu , Chao Zhai , Xinhua Wang , Lina Zheng

In-band full-duplex relay (FDR) has attracted much attention as an effective solution to improve the coverage and spectral efficiency in wireless communication networks. The basic problem for FDR transmission is how to eliminate the…

Information Theory · Computer Science 2023-07-10 Pu Yang , Xiang-Gen Xia , Qingyue Qu , Han Wang , Yi Liu
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