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We consider the problem of reliable communication over a discrete memoryless channel (DMC) with the help of a relay, termed the information bottleneck (IB) channel. There is no direct link between the source and the destination, and the…

Information Theory · Computer Science 2023-05-02 Michael Dikshtein , Nir Weinberger , Shlomo Shamai

The analysis of modulation schemes for the physical layer network-coded two way relaying scenario is presented which employs two phases: Multiple access (MA) phase and Broadcast (BC) phase. It was shown by Koike-Akino et. al. that…

Information Theory · Computer Science 2012-03-27 Vijayvaradharaj T. Muralidharan , B. Sundar Rajan

A two-hop energy harvesting communication network is considered, in which measurement updates are transmitted by a source to a destination through an intermediate relay. Updates are to be sent in a timely fashion that minimizes the age of…

Information Theory · Computer Science 2019-06-18 Ahmed Arafa , Sennur Ulukus

This work considers the secure and reliable information transmission in two-hop relay wireless networks without the information of both eavesdropper channels and locations. While the previous work on this problem mainly studied infinite…

Networking and Internet Architecture · Computer Science 2012-12-03 Yulong Shen , Xiaohong Jiang , Jianfeng Ma , Weisong Shi

In this paper, we consider a system in which multiple users communicate with a destination with the help of multiple half-duplex relays. Based on the compute-and-forward scheme, each relay, instead of decoding the users' messages, decodes…

Information Theory · Computer Science 2014-10-20 Mohieddine El Soussi , Abdellatif Zaidi , Luc Vandendorpe

We investigate the performance of multihop-intervehicular communication systems with regenerative and nonregenerative relaying. We consider the so-called "n*Rayleigh distribution" as an adequate multipath fading channel model for…

Information Theory · Computer Science 2016-09-02 Yahia Alghorani , Georges Kaddoum , Sami Muhaidat , Samuel Pierre , Naofal Al-Dhahir

Wireless random access protocols are attracting a revived research interest as a simple yet effective solution for machine-type communications. In the quest to improve reliability and spectral efficiency of such schemes, the use of multiple…

Information Theory · Computer Science 2019-03-11 Andrea Munari , Federico Clazzer , Gianluigi Liva , Michael Heindlmaier

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 2014-04-01 Zoran Hadzi-Velkov , Nikola Zlatanov , Robert Schober

Multi-resolution codes enable multicast at different rates to different receivers, a setup that is often desirable for graphics or video streaming. We propose a simple, distributed, two-stage message passing algorithm to generate network…

Networking and Internet Architecture · Computer Science 2016-11-18 MinJi Kim , Daniel Lucani , Xiaomeng Shi , Fang Zhao , Muriel Medard

We consider "virtual" full-duplex relaying by means of half-duplex relays. In this configuration, each relay stage in a multi-hop relaying network is formed by at least two relays, used alternatively in transmit and receive modes, such that…

Information Theory · Computer Science 2013-11-26 Song-Nam Hong , Giuseppe Caire

We study the problem of joint information and energy transfer in a binary two-hop channel with an energy harvesting relay. We consider a finite battery size at the relay and energy loss in transmitting energy. In other words, to be able to…

Information Theory · Computer Science 2021-09-29 Ali H. Abdollahi Bafghi , Mahtab Mirmohseni , Mohammad Reza Aref

This work considers the problem of secure and reliable information transmission via relay cooperation in two-hop relay wireless networks without the information of both eavesdropper channels and locations. While previous work on this…

Cryptography and Security · Computer Science 2012-12-04 Yulong Shen , Xiaohong Jiang , Jianfeng Ma , Weisong Shi

We consider mesh networks composed of groups of relaying nodes which operate in decode-and-forward mode, where each node from a group relays information to all the nodes in the next group. We study these networks in two setups, one where…

Information Theory · Computer Science 2012-10-17 Angel Bravo-Santos , Petar M. Djuric

In this paper we design network coding schemes for Differential Chaos Shift Keying (DCSK) modulation. In this work, non-coherent chaos-based communication system is used due to its simplicity and robustness to multipath propagation effects,…

Information Theory · Computer Science 2015-05-13 Georges Kaddoum , Mohammed El-Hajjar

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

A multi-hop relaying system is analyzed where data sent by a multi-antenna source is relayed by successive multi-antenna relays until it reaches a multi-antenna destination. Assuming correlated fading at each hop, each relay receives a…

Information Theory · Computer Science 2016-11-18 Nadia Fawaz , Keyvan Zarifi , Merouane Debbah , David Gesbert

In this paper, we study the bidirectional/two-way relaying of molecular communication and propose a relaying scheme with two time slots. Compared to the four-time-slot and three-time-slot schemes, the proposed two-time-slot scheme improves…

Emerging Technologies · Computer Science 2017-11-09 Md. Noor-A-Rahim , MD Nashid Anjum , Guan Yong Liang

This paper investigates the end-to-end throughput maximization problem for a two-hop multiple-relay network, with relays powered by simultaneous wireless information and power transfer (SWIPT) technique. Nonlinearity of energy harvester at…

Information Theory · Computer Science 2019-04-25 Qi Gu , Gongpu Wang , Rongfei Fan , Ning Zhang , Zhangdui Zhong

Two-way relaying in wireless systems has initiated a large research effort during the past few years. While one-way relay with a single data flow introduces loss in spectral efficiency due to its half-duplex operation, two-way relaying…

Information Theory · Computer Science 2012-09-27 Huaping Liu , Petar Popovski , Elisabeth de Carvalho , Yuping Zhao , Fan Sun , Chan Dai Truyen Thai

A multi-hop two-way relay channel is considered in which all the terminals are equipped with multiple antennas. Assuming independent quasi-static Rayleigh fading channels and channel state information available at the receivers, we…

Information Theory · Computer Science 2008-12-19 Deniz Gunduz , Andrea Goldsmith , H. Vincent Poor