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Two-way real-time video communication in wireless networks requires high bandwidth, low delay and error resiliency. This paper addresses these demands by proposing a system with the integration of Network Coding (NC), user cooperation using…

Information Theory · Computer Science 2012-05-16 Xiaozhong Xu , Ozgu Alay , Elza Erkip , Yao Wang , Shivendra Panwar

Relay-assisted cooperative wireless communication has been shown to have significant performance gains over the legacy direct transmission scheme. Compared with single relay based cooperation schemes, utilizing multiple relays further…

Networking and Internet Architecture · Computer Science 2015-03-19 Pei Liu , Chun Nie , Thanasis Korakis , Elza Erkip , Shivendra Panwar , Francesco Verde , Anna Scaglione

In this work, we propose buffer-aided distributed space-time coding (DSTC) schemes and relay selection algorithms for cooperative direct-sequence code-division multiple access (DS-CDMA) systems. We first devise a relay pair selection…

Information Theory · Computer Science 2016-10-04 J. Gu , R. C. de Lamare

An adaptive randomized distributed space-time coding (DSTC) scheme is proposed for two-hop cooperative MIMO networks. Linear minimum mean square error (MMSE) receiver filters and randomized matrices subject to a power constraint are…

Information Theory · Computer Science 2013-03-20 T. Peng , R. C. de Lamare , A. Schmeink

An adaptive randomized distributed space-time coding (DSTC) scheme and algorithms are proposed for two-hop cooperative MIMO networks. Linear minimum mean square error (MMSE) receivers and an amplify-and-forward (AF) cooperation strategy are…

Information Theory · Computer Science 2013-03-19 T. Peng , R. C. de Lamare , A. Schmeink

In this work, we propose a dynamic buffer-aided distributed space-time coding (DSTC) scheme for cooperative direct-sequence code-division multiple access systems. We first devise a relay selection algorithm that can automatically select the…

Information Theory · Computer Science 2016-08-17 J. Gu , R. C. de Lamare

Cooperative multicast is an effective solution to address the bottleneck problem of single-hop broadcast in wireless networks. By incorporating with the random linear network coding technique, the existing schemes can reduce the…

Networking and Internet Architecture · Computer Science 2012-09-19 Fei Wu , Cunqing Hua , Hangguan Shan , Aiping Huang

The surge in wireless devices and data traffic volume necessitates more efficient transmission methods. Multicasting has garnered consistent attention as a means to fulfill the increasing demand for more efficient data transmission methods.…

Systems and Control · Electrical Eng. & Systems 2024-07-08 Hojung Lee , Jun-Pyo Hong , Wan Choi

Differential distributed space-time coding (D-DSTC) has been considered to improve both diversity and data-rate in cooperative communications in the absence of channel information. However, conventionally, it is assumed that relays are…

Information Theory · Computer Science 2016-11-17 M. R. Avendi , Sina Poorkasmaei , Hamid Jafarkhani

Differential distributed space-time coding (D-DSTC) is a cooperative transmission technique that can improve diversity in wireless relay networks in the absence of channel information. Conventionally, it is assumed that channels are…

Information Theory · Computer Science 2014-11-18 M. R. Avendi , Hamid Jafarkhani

An adaptive distributed space-time coding (DSTC) scheme is proposed for two-hop cooperative MIMO networks. Linear minimum mean square error (MMSE) receive filters and adjustable code matrices are considered subject to a power constraint…

Information Theory · Computer Science 2016-11-17 T. Peng , R. C. de Lamare , A. Schmeink

In this paper we propose a new cooperative packet transmission scheme that allows independent sources to superimpose over-the-air their packet transmissions. Relay nodes are used and cooperative diversity is combined with distributed…

Networking and Internet Architecture · Computer Science 2013-03-18 Antonios Argyriou

We consider a wireless relay network with multiple antenna terminals over Rayleigh fading channels, and apply distributed space-time coding (DSTC) in amplify-and-forward (A&F) mode. The A&F scheme is used in a way that each relay transmits…

Information Theory · Computer Science 2011-02-15 Behrouz Maham , Are Hjørungnes

In this paper, we propose two distributed linear convolutional space-time coding (DLC-STC) schemes for full-duplex (FD) asynchronous cooperative communications. The DLC-STC Scheme 1 is for the case of the complete loop channel cancellation,…

Information Theory · Computer Science 2013-10-09 Yi Liu , Xiang-Gen Xia , Hailin Zhang

An adaptive delay-tolerant distributed space-time coding (DSTC) scheme with feedback is proposed for two-hop cooperative multiple-input multiple-output (MIMO) networks using an amplify-and-forward strategy and opportunistic relaying…

Information Theory · Computer Science 2014-12-16 T. Peng , R. C. de Lamare

This paper presents a novel deep joint source-channel coding (DeepJSCC) scheme for image transmission over a half-duplex cooperative relay channel. Specifically, we apply DeepJSCC to two basic modes of cooperative communications, namely…

Information Theory · Computer Science 2024-03-20 Chenghong Bian , Yulin Shao , Haotian Wu , Deniz Gunduz

We study an incremental redundancy (IR) cooperative coding scheme for wireless networks. To exploit the spatial diversity benefit we propose a cluster-based collaborating strategy for a quasi-static Rayleigh fading channel model and based…

Information Theory · Computer Science 2007-07-13 Ruoheng Liu , Predrag Spasojevic , Emina Soljanin

To achieve the available performance gains in half-duplex wireless relay networks, several cooperative schemes have been earlier proposed using either distributed space-time coding or distributed beamforming for the transmitter without and…

Information Theory · Computer Science 2015-05-13 Javier M. Paredes , Babak H. Khalaj , Alex B. Gershman

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…

Information Theory · Computer Science 2015-06-04 Vijayvaradharaj T. Muralidharan , B. Sundar Rajan

We apply the coded caching scheme proposed by Maddah-Ali and Niesen to a multipoint multicasting video paradigm. Partially caching the video files on the wireless devices provides an opportunity to decrease data traffic load in peak hours…

Information Theory · Computer Science 2021-06-15 Mozhgan Bayat , Çağkan Yapar , Giuseppe Caire
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