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In this work, a new static relaying protocol is introduced for half duplex single-relay networks, and its performance is studied in the context of communications over slow fading wireless channels. The proposed protocol is based on a Decode…

Information Theory · Computer Science 2009-08-31 Nassar Ksairi , Philippe Ciblat , Pascal Bianchi , Walid Hachem

This paper carries out the first-ever investigation of the analysis of a cooperative Decode-and-Forward (DF) relay network with Chaos Shift Keying (CSK) modulation. The performance analysis of DF-CSK in this paper takes into account the…

Information Theory · Computer Science 2013-09-26 Georges Kaddoum , Francois Gagnon

This letter proposes a dynamic power splitting scheme (DPSS) for decode-and-forward (DF) based cooperative simultaneous wireless information and power transfer (SWIPT) networks with direct link. The relay node adopts an optimal dynamic…

Signal Processing · Electrical Eng. & Systems 2019-02-28 Yingting Liu , Yinghui Ye , Haiyang Ding , Jianmei Shen , Hongwu Yang

This paper focuses on the design of an optimal resource allocation scheme to maximize the energy efficiency (EE) in a simultaneous wireless information and power transfer (SWIPT) enabled two-way decode-and-forward (DF) relay network under a…

Information Theory · Computer Science 2019-03-20 Liqin Shi , Yinghui Ye , Rose Qingyang Hu , Hailin Zhang

In this paper, we explore the physical-layer security in cooperative wireless networks with multiple relays where both amplify-and-forward (AF) and decode-and-forward (DF) protocols are considered. We propose the AF and DF based optimal…

Information Theory · Computer Science 2016-11-17 Yulong Zou , Xianbin Wang , Weiming Shen

In this paper, we consider a multi-pair two-way amplify-and-forward relaying system where multiple sources exchange information via a relay node equipped with large-scale antenna arrays. Given that channel estimation is non-ideal, and that…

Information Theory · Computer Science 2016-05-26 Yongyu Dai , Xiaodai Dong

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

In this work, we investigate a multi-source multi-cast network with the aid of an arbitrary number of relays, where it is assumed that no direct link is available at each S-D pair. The aim is to find the fundamental limit on the maximal…

Information Theory · Computer Science 2014-06-05 Z. Chen , P. Fan , K. B. Letaief

Wireless energy harvesting (WEH) has been recognized as a promising technique to prolong the lifetime of energy constrained relay nodes in wireless sensor networks. Its application and related performance study in three-step two-way…

Information Theory · Computer Science 2019-03-01 Liqin Shi , Yinghui Ye , Rose Qingyang Hu , Hailin Zhang

Rate-Splitting Multiple Access (RSMA) is a promising strategy for ensuring robust transmission in multi-antenna wireless systems. In this paper, we investigate the performance of RSMA in a downlink Decode-and-Forward (DF) relay scenario…

Signal Processing · Electrical Eng. & Systems 2024-09-16 Ahmet Sacid Sümer , Mehmet Mert Şahin , Hüseyin Arslan

A noncoherent two-way relaying system is developed using physical-layer network coding for improved throughput over conventional relaying in a fading channel. Energy-efficient noncoherent operation is achieved using multitone frequency…

Information Theory · Computer Science 2018-02-01 Terry Ferrett , Matthew C. Valenti

In this paper, we present a new power allocation scheme for a decode-and-forward (DF) relaying-enhanced cooperative wireless system. While both source and relay nodes may have limited traditional brown power supply or fixed green energy…

Information Theory · Computer Science 2014-07-09 Xueqing Huang , Nirwan Ansari

This paper analyses the data rate achieved by various relay selection schemes in a single-user multi-hop relay network with decode-and-forward (DF) relaying. While the single-user relay selection problem is well studied in the literature,…

Information Theory · Computer Science 2023-08-17 Shalanika Dayarathna , Rajitha Senanayake , Jamie Evans

This paper describes an approach for half-duplex cooperative transmission in a classical three-node relay channel. Assuming availability of channel state information at nodes, the approach makes use of this information to optimize distinct…

Information Theory · Computer Science 2011-11-09 Tan F. Wong , Tat M. Lok , John M. Shea

Full-Duplex (FD) Amplify-and-Forward (AF) Multiple-Input Multiple-Output (MIMO) relaying has been the focus of several recent studies, due to the potential for achieving a higher spectral efficiency and lower latency, together with inherent…

Information Theory · Computer Science 2020-08-17 Omid Taghizadeh , Slawomir Stanczak , Hiroki Iimori , Giuseppe Abreu

The physical-layer security issue in the multiple non-regenerative wireless-powered relay (WPR) networks is investigated in this letter, where the idle relay is treated as a potential eavesdropper. To guarantee secure communication, the…

Information Theory · Computer Science 2015-07-08 Mingxiong Zhao , Xiangfeng Wang , Suili Feng

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

The Compute-and-Forward relaying strategy achieves high computation rates by decoding linear combinations of transmitted messages at intermediate relays. However, if the involved relays independently choose which combinations of the…

Information Theory · Computer Science 2015-04-21 Amaro Barreal , Joonas Pääkkönen , David Karpuk , Camilla Hollanti , Olav Tirkkonen

The study of relays with the scope of energy-harvesting (EH) looks interesting as a means of enabling sustainable, wireless communication without the need to recharge or replace the battery driving the relays. However, reliability of such…

Networking and Internet Architecture · Computer Science 2017-05-02 Sutanu Ghosh , Tamaghna Acharya , Santi P. Maity

Physical layer security is known as a promising paradigm to ensure security for the beyond 5G (B5G) networks in the presence of eavesdroppers. In this paper, we elaborate on a tractable analysis framework to evaluate the reliability and…

Signal Processing · Electrical Eng. & Systems 2020-06-09 Xingwang Li , Mengyan Huang , Yuanwei Liu , Varun G Menon , Anand Paul , Zhiguo Ding