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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…

信息论 · 计算机科学 2018-02-01 Terry Ferrett , Matthew C. Valenti

Noisy network coding is recently proposed for the general multi-source network by Lim, Kim, El Gamal and Chung. This scheme builds on compress-forward (CF) relaying but involves three new ideas, namely no Wyner-Ziv binning, relaxed…

信息论 · 计算机科学 2011-11-14 Peng Zhong , Ahmad Abu Al Haija , Mai Vu

This paper investigates the simultaneous wireless information and power transfer (SWIPT) for two-hop orthogonal frequency division multiplexing (OFDM) decode-and-forward (DF) relay communication system, where a relay harvests energy from…

信息论 · 计算机科学 2014-07-10 Xiaofei Di , Ke Xiong , Zhengding Qiu

We consider a cooperative wireless network in the presence of one of more eavesdroppers, and exploit node cooperation for achieving physical (PHY) layer based security. Two different cooperation schemes are considered. In the first scheme,…

信息论 · 计算机科学 2015-05-14 Jiangyuan Li , Athina P. Petropulu , Steven Weber

The research challenge of current Wireless Sensor Networks~(WSNs) is to design energy-efficient, low-cost, high-accuracy, self-healing, and scalable systems for applications such as environmental monitoring. Traditional WSNs consist of low…

网络与互联网体系结构 · 计算机科学 2019-07-01 Vidyasagar Sadhu , Xueyuan Zhao , Dario Pompili

This paper proposes a new security cooperative protocol, for dual phase amplify-and-forward large wireless sensor networks. In such a network, a portion of the K relays can be potential eavesdroppers. The source agrees to share with the…

密码学与安全 · 计算机科学 2019-02-21 Michael Atallah , Georges Kaddoum

Future railway is expected to accommodate both train operation services and passenger broadband services. The millimeter wave (mmWave) communication is a promising technology in providing multi-gigabit data rates to onboard users. However,…

信息论 · 计算机科学 2020-07-03 Meilin Gao , Bo Ai , Yong Niu , Wen Wu , Peng Yang , Feng Lyu , Xuemin , Shen

In this paper, we propose novel cooperative transmission protocols for delay limited coherent fading channels consisting of N (half-duplex and single-antenna) partners and one cell site. In our work, we differentiate between the relay,…

信息论 · 计算机科学 2007-07-16 Kambiz Azarian , Hesham El Gamal , Philip Schniter

Advances in Wireless Sensor Network Technology (WSN) have provided the availability of small and low-cost sensor with capability of sensing various types of physical and environmental conditions, data processing and wireless communication.…

网络与互联网体系结构 · 计算机科学 2013-06-04 S. Ganesh , R. Amutha

In this paper, link selection for half-duplex buffer-aided relay systems is revisited. A new fixed scheduling policy referred as alternate distributed beamforming (ADB) is proposed, in which the relays are divided into two groups, with one…

信息论 · 计算机科学 2019-10-10 Jiayu Zhou , Deli Qiao

Next-generation communication networks will likely involve the energy-efficient transfer of information and energy over the same wireless channel, for which the physical layer will become more vulnerable to cyber attacks by potential…

信息论 · 计算机科学 2017-07-12 Ali A. Nasir , Hoang D. Tuan , Trung Q. Duong , H. Vincent Poor

In this paper, we study a half-duplex two-way relay channel (TWRC) with correlated sources exchanging bidirectional information. In the case, when both sources have the knowledge of correlation statistics, a source compression with…

信息论 · 计算机科学 2016-02-02 Qiang Huo , Lingyang Song , Yonghui Li , Bingli Jiao

In this paper, we propose a new distributed energy beamforming and information transfer (DEBIT) scheme for realizing simultaneous wireless information and power transfer (SWIPT) in multiway relay networks (MWRNs), where multiple…

信息论 · 计算机科学 2017-10-10 Zhaoxi Fang , Xiaojun Yuan

In this paper, we consider relay-assisted simultaneous wireless information and power transfer (SWIPT) for two-hop cooperative transmission, where a half-duplex multi-antenna relay adopts decode-and-forward (DF) relaying strategy for…

信息论 · 计算机科学 2017-06-20 Yuan Liu

This letter analyzes and compares the performance of full-duplex relaying (FDR) and half-duplex relaying (HDR) for ultra-reliable short-packet communications. Specifically, we derive both approximate and asymptotic closed-form expressions…

信息论 · 计算机科学 2017-11-23 Yifan Gu , He Chen , Yonghui Li , Branka Vucetic

In past years there has been increasing interest in field of Wireless Sensor Networks (WSNs). One of the major issue of WSNs is development of energy efficient routing protocols. Clustering is an effective way to increase energy efficiency.…

网络与互联网体系结构 · 计算机科学 2013-03-22 T. N. Qureshi , N. Javaid , A. H. Khan , A. Iqbal , E. Akhtar , M. Ishfaq

We consider the wireless two-way relay channel, in which two-way data transfer takes place between the end nodes with the help of a relay. For the Denoise-And-Forward (DNF) protocol, it was shown by Koike-Akino et. al. that adaptively…

信息论 · 计算机科学 2015-06-04 Vijayvaradharaj T. Muralidharan , B. Sundar Rajan

For ultra-wideband and high-rate wireless communication systems, wideband spectrum sensing (WSS) is critical, since it empowers secondary users (SUs) to capture the spectrum holes for opportunistic transmission. However, WSS encounters…

信息检索 · 计算机科学 2024-09-16 Jibin Jia , Peihao Dong , Fuhui Zhou , Qihui Wu

Cellular networks are evolving towards dense deployment of small cells. This in turn demands flexible and efficient backhauling solutions. A viable solution that reuses the same spectrum is wireless backhaul where the Small Base Station…

信息论 · 计算机科学 2014-04-15 Henning Thomsen , Elisabeth de Carvalho , Petar Popovski

Relay-based cooperative communication has become a research focus in recent years because it can achieve diversity gain in wireless networks. In existing works, network coding and two-path relay are adopted to deal with the increase of…

信息论 · 计算机科学 2013-04-09 Hao Lu , Peilin Hong , Kaiping Xue