Full-rate distributed space-time codes for cooperative communications

Wei Zhang, Khaled Letaief

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

A full-rate distributed space-time (ST) code design is proposed for amplify-and-forward cooperative wireless channels. By employing a signal space diversity technique at the source node and a unique signature vector at each relay node, the proposed distributed ST codes can achieve full cooperative diversity and full rate. The achievable diversity gain is shown to be M + 1, where M is the number of relay nodes. Optimal power allocation is also proposed to maximize the coding gain under a total power constraint.

Original languageEnglish
Article number4570208
Pages (from-to)2446-2451
Number of pages6
JournalIEEE Transactions on Wireless Communications
Volume7
Issue number7
DOIs
Publication statusPublished - Jul 2008
Externally publishedYes

Fingerprint

Cooperative communication
Cooperative Communication
Space time codes
Space-time
Relay
Vertex of a graph
Cooperative Diversity
Coding Gain
Diversity Gain
Amplify-and-forward
Power Allocation
Optimal Allocation
Signature
Maximise

Keywords

  • Cooperative diversity
  • Diversity technique
  • Relay channels
  • Space-time coding

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Networks and Communications

Cite this

Full-rate distributed space-time codes for cooperative communications. / Zhang, Wei; Letaief, Khaled.

In: IEEE Transactions on Wireless Communications, Vol. 7, No. 7, 4570208, 07.2008, p. 2446-2451.

Research output: Contribution to journalArticle

@article{728a251d521146feb89852e183739bd5,
title = "Full-rate distributed space-time codes for cooperative communications",
abstract = "A full-rate distributed space-time (ST) code design is proposed for amplify-and-forward cooperative wireless channels. By employing a signal space diversity technique at the source node and a unique signature vector at each relay node, the proposed distributed ST codes can achieve full cooperative diversity and full rate. The achievable diversity gain is shown to be M + 1, where M is the number of relay nodes. Optimal power allocation is also proposed to maximize the coding gain under a total power constraint.",
keywords = "Cooperative diversity, Diversity technique, Relay channels, Space-time coding",
author = "Wei Zhang and Khaled Letaief",
year = "2008",
month = "7",
doi = "10.1109/TWC.2008.070117",
language = "English",
volume = "7",
pages = "2446--2451",
journal = "IEEE Transactions on Wireless Communications",
issn = "1536-1276",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "7",

}

TY - JOUR

T1 - Full-rate distributed space-time codes for cooperative communications

AU - Zhang, Wei

AU - Letaief, Khaled

PY - 2008/7

Y1 - 2008/7

N2 - A full-rate distributed space-time (ST) code design is proposed for amplify-and-forward cooperative wireless channels. By employing a signal space diversity technique at the source node and a unique signature vector at each relay node, the proposed distributed ST codes can achieve full cooperative diversity and full rate. The achievable diversity gain is shown to be M + 1, where M is the number of relay nodes. Optimal power allocation is also proposed to maximize the coding gain under a total power constraint.

AB - A full-rate distributed space-time (ST) code design is proposed for amplify-and-forward cooperative wireless channels. By employing a signal space diversity technique at the source node and a unique signature vector at each relay node, the proposed distributed ST codes can achieve full cooperative diversity and full rate. The achievable diversity gain is shown to be M + 1, where M is the number of relay nodes. Optimal power allocation is also proposed to maximize the coding gain under a total power constraint.

KW - Cooperative diversity

KW - Diversity technique

KW - Relay channels

KW - Space-time coding

UR - http://www.scopus.com/inward/record.url?scp=48149084600&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=48149084600&partnerID=8YFLogxK

U2 - 10.1109/TWC.2008.070117

DO - 10.1109/TWC.2008.070117

M3 - Article

VL - 7

SP - 2446

EP - 2451

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

SN - 1536-1276

IS - 7

M1 - 4570208

ER -