Viterbi algorithm based noncoherent detection scheme for differential space-time block code

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Abstract

The Viterbi algorithm based noncoherent detection schemes are considered for the detection of differential space-time block code in fast fading environments. In order to overcome the channel variation due to fading, we consider exploiting short observation interval and applying the Viterbi algorithm to mitigate the performance degradation due to this short interval. Our simulation results shows that the proposed detection scheme outperforms not only multiple symbol differential detection but also coherent detection with channel estimation under fast fading conditions. In addition, we easily extend the proposed detection scheme to an iterative version by simply incorporating a priori information from the channel decoder. It is also shown that this iterative method improves the performance as the number of iterations increases.

Original languageEnglish
Title of host publicationConvergence and Hybrid Information Technology - 5th International Conference, ICHIT 2011, Proceedings
Pages139-145
Number of pages7
DOIs
StatePublished - 2011
Event5th International Conference on Convergence and Hybrid Information Technology, ICHIT 2011 - Daejeon, Korea, Republic of
Duration: 22 Sep 201124 Sep 2011

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume6935 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference5th International Conference on Convergence and Hybrid Information Technology, ICHIT 2011
Country/TerritoryKorea, Republic of
CityDaejeon
Period22/09/1124/09/11

Keywords

  • differential STBC
  • fast fading
  • Noncoherent receiver

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