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In this paper, we investigate relay selection for cooperative multiple-antenna systems that are equipped with buffers, which increase the reliability of wireless links. In particular, we present a novel relay selection technique based on…

Information Theory · Computer Science 2018-07-18 F. L. Duarte , R. C. de Lamare

In this paper, we investigate relay selection for cooperative multiple-antenna systems that are equipped with buffers, which increase the reliability of wireless links. In particular, we present a novel relay selection technique based on…

Information Theory · Computer Science 2019-03-27 F. L. Duarte , R. C. de Lamare

In this work, we consider the use of buffer-aided relays, linear precoding techniques and multiple antennas for physical-layer security in wireless networks. We develop relay selection algorithms to improve the secrecy-rate performance of…

Information Theory · Computer Science 2015-05-13 Xiaotao Lu , Rodrigo C. de Lamare

In this work, we present a cloud-aided uplink framework for multi-way multiple-antenna relay systems which facilitates joint linear Maximum Likelihood (ML) symbol detection in the cloud and where users are selected to simultaneously…

Information Theory · Computer Science 2020-02-04 F. L. Duarte , R. C. de Lamare

In this work, we present a switched relaying framework for multiple-input multiple-output (MIMO) relay systems where a source node may transmit directly to a destination node or aided by relays. We also investigate relay selection…

Information Theory · Computer Science 2019-12-30 F. L. Duarte , R. C. de Lamare

In this paper, we consider the problem of multi-relay selection for multi-stream cooperative MIMO systems with $M$ relay nodes. Traditionally, relay selection approaches are primarily focused on selecting one relay node to improve the…

Information Theory · Computer Science 2015-03-17 Shunqing Zhang , Vincent K. N. Lau

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

Extensive research has been done to achieve better throughput and reliability in wireless networks, with focus on multiple-input multiple-output systems. Recently, cooperative networking techniques have been investigated to increase the…

Networking and Internet Architecture · Computer Science 2019-11-19 Muhammad Asam , Zeeshan Haider , Tauseef Jamal , Kashif Ghuman , Aleena Ajaz

This paper proposes a novel relay selection scheme for buffer-aided wireless networks with relays equipped with both data buffers and energy storage. While buffer-aided relay networks have demonstrated significantly improved performance,…

Information Theory · Computer Science 2025-06-23 Mohammad Alkhawatrah , Yu Gong , Chong Huang , Gaojie Chen

This paper investigates the secure communication in a two-hop cooperative wireless network, where a buffer-aided relay is utilized to forward data from the source to destination, and a passive eavesdropper attempts to intercept data…

Information Theory · Computer Science 2018-02-20 Ji He , Jia Liu , Yulong Shen , Xiaohong Jiang

Relay selection enhances the performance of the cooperative networks by selecting the links with higher capacity. Meanwhile link adaptation improves the spectral efficiency of wireless data-centric networks through adapting the modulation…

Information Theory · Computer Science 2010-09-02 Wei Yang , Lihua Li , Gang Wu , Haifeng Wang

In this work we propose an adaptive buffer-aided space-time coding scheme for cooperative wireless networks. A maximum likelihood receiver and adjustable code vectors are considered subject to a power constraint with an amplify-and-forward…

Information Theory · Computer Science 2015-07-07 T. Peng , R. C. de Lamare

In this paper, we consider a simple network consisting of a source, a half-duplex decode-and-forward relay, and a destination. We propose a new relaying protocol employing adaptive link selection, i.e., in any given time slot, based on the…

Information Theory · Computer Science 2015-03-20 Nikola Zlatanov , Robert Schober , Petar Popovski

This work proposes adaptive buffer-aided distributed space-time coding schemes and algorithms with feedback for wireless networks equipped with buffer-aided relays. The proposed schemes employ a maximum likelihood receiver at the…

Information Theory · Computer Science 2016-09-20 R. C. de Lamare , T. Peng

Cooperative diversity has been recently proposed as a way to form virtual antenna arrays that provide dramatic gains in slow fading wireless environments. However most of the proposed solutions require distributed space-time coding…

Information Theory · Computer Science 2016-11-18 Aggelos Bletsas , Ashish Khisti , David P. Reed , Andrew Lippman

This paper considers a multi-way massive multiple-input multiple-output relaying system, where single-antenna users exchange their information-bearing signals with the help of one relay station equipped with unconventionally many antennas.…

Information Theory · Computer Science 2016-11-04 Chung Duc Ho , Hien Quoc Ngo , Michail Matthaiou , Trung Q. Duong

In this paper, we consider a point to point full duplex (FD) MIMO communication system. We assume that each node is equipped with an arbitrary number of antennas which can be used for transmission or reception. With FD radios, bidirectional…

Information Theory · Computer Science 2015-03-27 Mingxin Zhou , Lingyang Song , Yonghui Li , Xuelong Li

This paper considers secure communication in buffer-aided cooperative wireless networks in the presence of one eavesdropper, which can intercept the data transmission from both the source and relay nodes. A new max-ratio relaying protocol…

Information Theory · Computer Science 2020-05-18 Jiayu Zhou , Deli Qiao , Haifeng Qian

We consider a simple network consisting of a source, a half-duplex DF relay with a buffer, and a destination. We assume that the direct source-destination link is not available and all links undergo fading. We propose two new buffer-aided…

Information Theory · Computer Science 2013-02-19 Nikola Zlatanov , Robert Schober

Adaptive link selection for buffer-aided relaying can achieve significant performance gain compared with the conventional relaying with fixed transmission criterion. However, most of the existing link-selection strategies are designed based…

Signal Processing · Electrical Eng. & Systems 2020-05-11 Mi Qian , Guofa Cai , Yi Fang , Guojun Han
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