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This paper considers the joint design of user power allocation and relay beamforming in relaying communications, in which multiple pairs of single-antenna users exchange information with each other via multiple-antenna relays in two time…

Information Theory · Computer Science 2017-01-27 Zhichao Sheng , Hoang D. Tuan , Trung Q. Duong , H. Vincent Poor

This letter considers a compute-and-forward two-way relaying channel with simultaneous wireless information and power transfer. Specifically, two single-antenna users exchange information via a multi-antenna relay station based on nested…

Information Theory · Computer Science 2016-11-01 Zhigang Wen , Shuai Wang , Chunxiao Fan , Weidong Xiang

In order to follow up with mission-critical applications, new features need to be carried to satisfy a reliable communication with reduced latency. With this regard, this paper proposes a low latency cooperative transmission scheme, where…

Information Theory · Computer Science 2018-02-13 Fatima Ezzahra Airod , Houda Chafnaji , Halim Yanikomeroglu

This letter studies a wireless-powered amplify-and-forward relaying system, where an energy-constrained relay node assists the information transmission from the source to the destination using the energy harvested from the source. We…

Information Theory · Computer Science 2014-11-13 Yong Zeng , Rui Zhang

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 address the problem of a multi-user relay network, where multiple single-antenna node pairs want to exchange information by using a multiple antenna relay node. Due to the half-duplex constraint of the relay, the exchange of information…

Information Theory · Computer Science 2010-12-23 Aydin Sezgin , Holger Boche , Amir Salman Avestimehr

When multiple users share the same resource for physical layer cooperation such as relay terminals in their vicinities, this shared resource may not be always available for every user, and it is critical for transmitting terminals to know…

Information Theory · Computer Science 2015-12-02 Shih-Chun Lin , I-Hsiang Wang

In this letter, we consider a multiple-input multiple-output two-way cognitive radio system under a spectrum sharing scenario, where primary and secondary users operate on the same frequency band. The secondary terminals aims to exchange…

Information Theory · Computer Science 2013-11-05 Ahmad Alsharoa , Hakim Ghazzai , Mohamed-Slim Alouini

In this paper, we consider a wireless powered multi-relay network in which a multi-antenna hybrid access point underlaying a cellular system transmits information to distant receivers. Multiple relays capable of energy harvesting are…

Information Theory · Computer Science 2018-10-23 Jing Xu , Yuze Zou , Shimin Gong , Lin Gao , Dusit Niyato , Wenqing Cheng

We consider two-way amplify and forward relaying, where multiple full-duplex user pairs exchange information via a shared full-duplex massive multiple-input multiple-output (MIMO) relay. Most of the previous massive MIMO relaying works…

Information Theory · Computer Science 2017-10-05 Ekant Sharma , Rohit Budhiraja , K Vasudevan , Lajos Hanzo

We consider a multi-pair amplify-and-forward relay network where the energy-constrained relays adopting time-switching protocol harvest energy from the radio frequency signals transmitted by the users for assisting user data transmission.…

Information Theory · Computer Science 2018-10-16 Kien-Giang Nguyen , Quang-Doanh Vu , Le-Nam Tran , Markku Juntti

This paper investigates wireless information and power transfer in a full-duplex MIMO relay channel where the self-sustained relay harvests energy from both source transmit signal and self-interference signal to decode and forward source…

Signal Processing · Electrical Eng. & Systems 2019-01-31 Rafia Malik , Mai Vu

Relaying techniques for millimeter-wave wireless networks represent a powerful solution for improving the transmission performance. In this work, we quantify the benefits in terms of delay and throughput for a random-access multi-user…

Networking and Internet Architecture · Computer Science 2019-03-08 Cristian Tatino , Nikolaos Pappas , Ilaria Malanchini , Lutz Ewe , Di Yuan

We consider a dual-hop full-duplex relaying system, where the energy constrained relay node is powered by radio frequency signals from the source using the time-switching architecture, both the amplify-and-forward and decode-and-forward…

Information Theory · Computer Science 2014-09-16 Caijun Zhong , Himal A. Suraweera , Gan Zheng , Ioannis Krikidis , Zhaoyang Zhang

Considering a three-node multiple antenna relay system, this paper proposes a two-phase amplify-and-forward (AF) relaying protocol, which enables the autonomous relay to simultaneously harvest wireless power from the source information…

Information Theory · Computer Science 2015-05-04 Yang Huang , Bruno Clerckx

We consider a full-duplex decode-and-forward system, where the wirelessly powered relay employs the time-switching protocol to receive power from the source and then transmit information to the destination. It is assumed that the relay node…

Information Theory · Computer Science 2016-11-15 Mohammadali Mohammadi , Himal A. Suraweera , Gan Zheng , Caijun Zhong , Ioannis Krikidis

In cognitive radio (CR) networks, there are scenarios where the secondary (lower priority) users intend to communicate with each other by opportunistically utilizing the transmit spectrum originally allocated to the existing primary (higher…

Information Theory · Computer Science 2009-11-13 Rui Zhang , Ying Chang Liang

In this work, we analyze the throughput of random access multi-user relay-assisted millimeter-wave wireless networks, in which both the destination and the relay have multipacket reception capability. We consider a full-duplex network…

Networking and Internet Architecture · Computer Science 2018-10-08 Cristian Tatino , Nikolaos Pappas , Ilaria Malanchini , Lutz Ewe , Di Yuan

Previous work on relay networks has concentrated primarily on the diversity benefits of such techniques. This paper explores the possibility of also obtaining multiplexing gain in a relay network, while retaining diversity gain.…

Information Theory · Computer Science 2007-09-29 Yijia , Fan , H. Vincent Poor , John S. Thompson

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
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