Recursive vector Viterbi algorithm for multibeam interference cancellers

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1 Citation (Scopus)

Abstract

This paper proposes a novel algorithm, named "Recursive vector Viterbi algorithm" applied for the multibeam interference cancellers. The proposed algorithm make it possible to reduce the computational complexity of the cancellers, ultimately. The basic idea of the algorithm is to divide the state transition of the vector Viterbi algorithm into the several steps, each of which corresponds to each beam in the multibeam. In spite of the division, the performance of the canceller based on the proposed algorithm scarcely degrades by virtue of assistance of the adaptive beam control implemented in the multibeam interference cancellers. Indeed, It is verified by computer simulation that 3-beam interference canceller has only 0.2dB performance degradation in 2-path Rayleigh fading channel in spite of one third of computational complexity compared with the conventional one.

Original languageEnglish
Pages (from-to)1890-1894
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume57
Issue number3
Publication statusPublished - Sep 1 2003
Externally publishedYes
Event57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of
Duration: Apr 22 2003Apr 25 2003

Keywords

  • Complexity reduction
  • Interference canceller
  • Mitltibeam
  • Multiuser detection
  • Viterbi algorithm

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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