Soft-Decision Viterbi Decoding with Diversity Combining for Multi-Beam Mobile Satellite Communication Systems

Tsutomu Sakai, Shuji Kubota, Shuzo Kato, Kiyoshi Kobayashi, Masahiro Morikura

Research output: Contribution to journalArticle

2 Citations (Scopus)


Diversity combining methods for mobile satellite communication systems employing convolutional encoding and soft-decision Viterbi decoding are evaluated. Computer simulation clarifies that the pre-Viterbi-decoding maximal ratio combining method has better performance than other methods in Rician fading channels. The simulation results agree with the Pe (bit error probability) performance derived from the numerical analysis for slow fading using the approximate Pe performance of Viterbi decoding in AWGN (additive white Gaussian noise) channels and the probability density function of Rician fading. Applying this diversity method to the multi-beam mobile satellite communication systems, a satellite beam diversity reception scheme is proposed. A computer simulation result shows that the proposed scheme decreases the packet error rate of the control signals to less than 1/100 around the satellite beam boundary.

Original languageEnglish
Pages (from-to)285-290
Number of pages6
JournalIEEE Journal on Selected Areas in Communications
Issue number2
Publication statusPublished - 1995 Feb


ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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