On the distributed space-time signal design for a large number of relay terminals

Murat Uysal, Onur Canpolat

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We study the asymptotic behavior of a cooperative scheme operating in amplify-and-forward (AF) mode when the number of relay terminals tends to infinity. An optimal code design rule is derived through the investigation of pairwise error probability (PEP) expression. The design rule is based on an Euclidean-distance-type metric including some scaling terms due to different path loss and shadowing effects associated with underlying relay links. Since the design criterion is channel-dependent, it does not allow itself for a practical code design. However, we further demonstrate that " classical" Euclidean distance can be used as a sub-optimal solution for realizing cooperative diversity advantages which we further verify through our simulation study. Our simulation results also indicate that distributed space-time codes based on Euclidean distance yield good results even for a small number of relays.

Original languageEnglish (US)
Title of host publication2005 IEEE Wireless Communications and Networking Conference, WCNC 2005
Subtitle of host publicationBroadband Wireless for the Masses - Ready for Take-off
Pages990-994
Number of pages5
DOIs
StatePublished - 2005
Event2005 IEEE Wireless Communications and Networking Conference, WCNC 2005: Broadband Wirelss for the Masses - Ready for Take-off - New Orleans, LA, United States
Duration: Mar 13 2005Mar 17 2005

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
Volume2
ISSN (Print)1525-3511

Other

Other2005 IEEE Wireless Communications and Networking Conference, WCNC 2005: Broadband Wirelss for the Masses - Ready for Take-off
Country/TerritoryUnited States
CityNew Orleans, LA
Period3/13/053/17/05

Keywords

  • Cooperative diversity
  • Fading channels
  • Pairwise error probability
  • Space-time codes

ASJC Scopus subject areas

  • General Engineering

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