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In certain applications, relay terminals can be employed to simultaneously deliver information and energy to a designated receiver and a radio frequency (RF) energy harvester, respectively. In such scenarios, the relay that is preferable…

Information Theory · Computer Science 2015-01-06 Diomidis S. Michalopoulos , Himal A. Suraweera , Robert Schober

In this paper, we investigate joint optimal relay selection and resource allocation under bandwidth exchange (BE) enabled incentivized cooperative forwarding in wireless networks. We consider an autonomous network where N nodes transmit…

Information Theory · Computer Science 2015-03-19 Muhammad Nazmul Islam , Narayan Mandayam , Sastry Kompella

Proportional Fair (PF) is a scheduling technique to maintain a balance between maximizing throughput and ensuring fairness to users. Dual Connectivity (DC) technique was introduced by the 3rd Generation Partnership Project (3GPP) to improve…

Networking and Internet Architecture · Computer Science 2020-02-18 Pradnya Kiri Taksande , Prasanna Chaporkar , Pranav Jha , Abhay Karandikar

We consider a three-node decode-and-forward (DF) half-duplex relaying system, where the source first harvests RF energy from the relay, and then uses this energy to transmit information to the destination via the relay. We assume that the…

Information Theory · Computer Science 2016-01-19 Zoran Hadzi-Velkov , Nikola Zlatanov , Trung Q. Duong , Robert Schober

The problem of power allocation is studied for a multiple-input multiple-output (MIMO) decode-and-forward (DF) two-way relaying system consisting of two source nodes and one relay. It is shown that achieving maximum sum-rate in such a…

Information Theory · Computer Science 2015-06-12 Jie Gao , Sergiy A. Vorobyov , Hai Jiang , Jianshu Zhang , Martin Haardt

In this work, energy-efficient cooperative protocols are studied for full-duplex relaying (FDR) with loopback interference. In these protocols, relay assistance is only sought under certain conditions on the different link outages to ensure…

Information Theory · Computer Science 2013-10-18 Mohammad Khafagy , Amr Ismail , Mohamed-Slim Alouini , Sonia Aissa

Previous work on cooperative communications has concentrated primarily on the diversity benefits of such techniques. This paper, instead, considers the multiplexing benefits of cooperative communications. First, a new interpretation on the…

Information Theory · Computer Science 2009-03-16 Yijia , Fan , Chao Wang , H. Vincent Poor , John S. Thompson

This paper investigates the location-based relay selection problem, where the source node chooses its relay from a set of spatially deployed decode-and-forward relays. The advantages of location-based relay selection are the elimination of…

Signal Processing · Electrical Eng. & Systems 2019-02-13 Saman Atapattu , Hazer Inaltekin , Jamie Evans

This paper deals with the problem of relay selection in wireless powered cooperative networks, where spatially random relays are equipped with energy storage devices e.g., batteries. In contrast to conventional techniques and in order to…

Information Theory · Computer Science 2016-11-17 Ioannis Krikidis

In this paper an optimal relay selection algorithm with non-negligible probing time is proposed and analyzed for cooperative wireless networks. Relay selection has been introduced to solve the degraded bandwidth efficiency problem in…

Information Theory · Computer Science 2015-02-10 Yang Liu , Yi Ouyang , Mingyan Liu

This work considers secure transmission protocol for flexible load-balance control in two-hop relay wireless networks without the information of both eavesdropper channels and locations. The available secure transmission protocols via relay…

Cryptography and Security · Computer Science 2013-01-10 Yulong Shen , Xiaohong Jiang , Jianfeng Ma

In this paper, we consider the design of joint network coding (NC)and relay selection (RS) in two-way relay channels. In the proposed schemes, two users first sequentially broadcast their respective information to all the relays. We propose…

Information Theory · Computer Science 2016-11-17 Yonghui Li , Raymond H. Y. Louie , Branka Vucetic

In this paper, we investigate a simultaneous wireless information and power transfer (SWIPT) based two-way decode-and-forward (DF) relay network, where time switching (TS) is employed for SWIPT and time division broadcast (TDBC) is employed…

Information Theory · Computer Science 2018-12-18 Liqin Shi , Yinghui Ye , Xiaoli Chu , Yangyang Zhang , Hailin Zhang

It has been shown that a decentralized relay selection protocol based on opportunistic feedback from the relays yields good throughput performance in dense wireless networks. This selection strategy supports a hybrid-ARQ transmission…

Information Theory · Computer Science 2016-11-17 Caleb K. Lo , Robert W. Heath, , Sriram Vishwanath

In order to satisfy the delay requirements of telecommunication systems, in this paper, we present a cooperative network with the short packet transmission in the Rayleigh fading channel. The desired relay can be implemented as a two-way…

Information Theory · Computer Science 2022-02-08 Mohammad Lari , Zahra Keshavarz Gandomani

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

In this paper, we consider a parallel relay network where two relays cooperatively help a source transmit to a destination. We assume the source and the destination nodes are equipped with multiple antennas. Three basic schemes and their…

Information Theory · Computer Science 2017-01-27 Muryong Kim , Sae-Young Chung

We investigate the relay selection problem for a decode and forward collaborative network. Users are able to collaborate; decode messages of each other, re-encode and forward along with their own messages. We study the performance obtained…

Information Theory · Computer Science 2009-09-29 Saeed Akhavan Astaneh , Saeed Gazor

We study the problem of channel pairing and power allocation in a multichannel multihop relay network to enhance the end-to-end data rate. Both amplify-and-forward (AF) and decode-and-forward (DF) relaying strategies are considered. Given…

Information Theory · Computer Science 2015-12-14 Mahdi Hajiaghayi , Min Dong , Ben Liang

Wireless systems that carry delay-sensitive information (such as speech and/or video signals) typically transmit with fixed data rates, but may occasionally suffer from transmission outages caused by the random nature of the fading…

Information Theory · Computer Science 2016-11-15 Zoran Hadzi-Velkov , Nikola Zlatanov , Robert Schober