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In this paper, we consider a dual-hop Multiple Input Multiple Output (MIMO) wireless multi-relay network, in which a source-destination pair both equipped with multiple antennas communicates through multiple half-duplex amplify-and-forward…

Signal Processing · Electrical Eng. & Systems 2020-03-20 Zijian Wang , Wen Chen

In this paper, we consider a dual-hop Multiple Input Multiple Output (MIMO) wireless relay network in the presence of imperfect channel state information (CSI), in which a source-destination pair both equipped with multiple antennas…

Signal Processing · Electrical Eng. & Systems 2020-03-24 Zijian Wang , Wen Chen , Feifei Gao , Jun Li

In this paper, we investigate the optimization problem of joint source and relay beamforming matrices for a twoway amplify-and-forward (AF) multi-input multi-output (MIMO) relay system. The system consisting of two source nodes and two…

Information Theory · Computer Science 2015-02-18 Wei Duan , Wei Song , Moon Ho Lee

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

We consider a multiple-input multiple-output (MIMO) relaying boardcast channel in downlink cellular networks, where the base station and the relay stations are both equipped with multiple antennas, and each user terminal has only a single…

Signal Processing · Electrical Eng. & Systems 2020-03-24 Zijian Wang , Wen Chen , Jun Li

Massive multiple-input multiple-output (MIMO) avails of simple transceiver design which can tackle many drawbacks of relay systems in terms of complicated signal processing, latency, and noise amplification. However, the cost and circuit…

Information Theory · Computer Science 2018-08-29 Milad Fozooni , Hien Quoc Ngo , Michail Matthaiou , Shi Jin , George C. Alexandropoulos

Beamforming in multiple-input multiple-output (MIMO) systems should take interference mitigation into account. However, for beamform design, accurate channel state information (CSI) is needed, which is often difficult to obtain due to…

Signal Processing · Electrical Eng. & Systems 2026-02-27 Alexander Bonora , Anna V. Guglielmi , Davide Scazzoli , Marco Giordani , Maurizio Magarini , Vineeth Teeda , Stefano Tomasin

This paper considers multiple-input multiple-output (MIMO) relay communication in multi-cellular (interference) systems in which MIMO source-destination pairs communicate simultaneously. It is assumed that due to severe attenuation and/or…

Information Theory · Computer Science 2017-03-28 Muhammad R A Khandaker , Kai-Kit Wong

In this work, we study the problem of relay beamforming for an underlay cognitive radio relay network using amplify-and-forward (AF) relaying technique. We consider a cognitive radio network consisting of single primary and multiple…

Signal Processing · Electrical Eng. & Systems 2019-10-21 Amir Behrouzi-Far , Saeideh Mohammadkhani

We study in this paper a two-hop relaying network consisting of one source, one destination, and three amplify-and-forward (AF) relays operating in a half-duplex mode. In order to compensate for the inherent loss of capacity pre-log factor…

Information Theory · Computer Science 2012-07-17 Ki-Hong Park , Mohamed-Slim Alouini

In this paper, linear beamforming design for amplify-and-forward relaying cellular networks is considered, in which base station, relay station and mobile terminals are all equipped with multiple antennas. The design is based on minimum…

Information Theory · Computer Science 2011-12-02 Chengwen Xing , Minghua Xia , shaodan Ma , Yik-Chung Wu

This paper deals with the problem of jointly designing the source precoder, the relaying matrices, and the destination equalizer in a multiple-relay amplify-and-forward (AF) cooperative multiple-input multiple-output (MIMO) wireless…

Signal Processing · Electrical Eng. & Systems 2020-06-11 Donatella Darsena , Giacinto Gelli , Francesco Verde

This paper studies the secure beamforming design in a multiple-antenna three-node system where two source nodes exchange messages with the help of an untrusted relay node. The relay acts as both an essential signal forwarder and a potential…

Information Theory · Computer Science 2015-06-18 Jianhua Mo , Meixia Tao , Yuan Liu , Rui Wang

In this paper we explore the use of full-duplex radio to improve the spectrum efficiency in a two-way relay channel where two sources exchange information through an multi-antenna relay, and all nodes work in the full-duplex mode. The…

Information Theory · Computer Science 2015-06-23 Gan Zheng

We consider the full-duplex (FD) two-way amplify-and-forward relay system with imperfect cancelation of loopback self-interference (SI) and investigate joint design of relay and receive beamforming for minimizing the mean square error under…

Information Theory · Computer Science 2016-06-28 Yeonggyu Shim , Wan Choi , Hyuncheol Park

A full-duplex two-way relay channel with multiple antennas is considered. For this three-node network, the beamforming design needs to suppress self-interference. While a traditional way is to apply zero-forcing for self-interference…

Information Theory · Computer Science 2016-10-18 Zhigang Wen , Shuai Wang , Xiaoqing Liu , Junwei Zou

In this paper, we propose a beamforming design for dual-functional radar-communication (DFRC) systems at the millimeter wave (mmWave) band, where hybrid beamforming and sub-arrayed MIMO radar techniques are jointly exploited. We assume that…

Signal Processing · Electrical Eng. & Systems 2018-10-25 Fan Liu , Christos Masouros

This paper investigates the performance of optimal single stream beamforming schemes in multiple-input multiple-output (MIMO) dual-hop amplify-and-forward (AF) systems. Assuming channel state information is not available at the source and…

Information Theory · Computer Science 2016-11-17 Caijun Zhong , Tharm Ratnarajah , Shi Jin , Kai Kit Wong

Dual-function radar-communication (DFRC) technology is emerging in next-generation wireless systems. Reconfigurable intelligent surface (RIS) arrays have been suggested as a crucial sensor component of the DFRC. In this paper, we propose a…

Signal Processing · Electrical Eng. & Systems 2026-03-13 Zhuoyang Liu , Haiyang Zhang , Tianyao Huang , Feng Xu , Yonina C. Eldar

We study amplified-and-forward (AF)-based two-way relaying (TWR) with multiple source pairs, which are exchanging information through the relay. Each source has single antenna and the relay has multi-antenna. The optimal beamforming matrix…

Information Theory · Computer Science 2010-12-13 Chin Choy Chai , Chau Yuen
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