Equalization techniques for space-time coded cooperative systems

Hakam Mheidat, Murat Uysal

Research output: Contribution to journalConference articlepeer-review

18 Scopus citations

Abstract

In this paper, we extend three equalizanon schemes proposed originally for conventional space-time block codes (STBC) [1]-[3] to cooperative schemes, carefully exploiting the underlying orthogonality of STBC. These three distributed schemes are named after their conventional counterparts as Distributed Time-Reversal (D-TR) STBC, Distributed Single-Carrier (D-SC) STBC and Distributed Orthogonal Frequency Division Multiplexed (D-OFDM) STBC. Considering the special case of single relay employment, our performance analysis for frequency-selective fading channels of memory L demonstrates that D-TR-STBC and D-SC-STBC schemes are able to achieve a maximum diversity order of 2(L+1) under the assumption of appropriate power control imposed on the relay terminal and high signal-to-noise ratio for source-to-relay link Extensive Monte-Carlo simulation results are further included to confirm the analytical results.

Original languageBritish English
Pages (from-to)1708-1712
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume60
Issue number3
StatePublished - 2004
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: 26 Sep 200429 Sep 2004

Keywords

  • Bit error rate
  • Cooperative diversity
  • Distributed space time block coding
  • Equalization
  • Fading channels

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