Paper Info
Title
Diversity-Multiplexing Tradeoff in Half-Duplex Relay Systems
Abstract
We study the multiple antenna half-duplex relay channel from the diversity-multiplexing tradeoff (DMT) per- spective. We find performance upper bounds and show that compress-and-forward (CF) protocol achieves the upper bound. We argue that although it is hard to find the exact DMT expressions for decode-and-forward (DF) type protocols, they would be suboptimal in the multiple antenna case. We also study the multiple-access relay channel (MARC), and evaluate how CF works in this system. Our results show that CF is a robust strategy, which performs well in different relay networks and multiple antenna scenarios. I. INTRODUCTION In wireless fading channels, cooperation or relaying in- creases communication reliability and transmission rates (1), (2). The literature includes numerous papers that compare different cooperation/relaying schemes either in terms of the probability of error or achievable rate. The seminal paper (3) establishes the fundamental tradeoff between reliability and rate, also known as diversity-multiplexing tradeoff (DMT), for multiple antenna systems. DMT is a powerful tool to evaluate
Year
DOI
Venue
2007
10.1109/ICC.2007.118
Glasgow
Keywords
Field
DocType
antenna arrays,decoding,diversity reception,multi-access systems,multiplexing,protocols,wireless channels,compress-and-forward protocol,decode-and-forward type protocols,diversity-multiplexing tradeoff,half-duplex relay systems,multiple antenna,multiple-access relay channel,relay networks
Relay channel,Expression (mathematics),Computer science,Upper and lower bounds,Computer network,Decoding methods,Half duplex relay,Multiple antenna,Multiplexing,Relay
Conference
ISSN
ISBN
Citations 
1550-3607
1-4244-0353-7
2
PageRank 
References 
Authors
0.53
17
2
Name
Order
Citations
PageRank
Melda Yuksel1477.46
Elza Erkip27302683.86