Soft-decision Viterbi decoding with diversity combining

T. Sakai, K. Kobayashi, S. Kubota, M. Morikura, S. Kato

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

Diversity combining methods for convolutional coded and soft-decision Viterbi decoded channels in mobile satellite communication systems are evaluated. Computer simulations confirm that the pre-Viterbi-decoding maximal-ratio combining method has better performance than other methods in Rician fading channels. Bit error probability performances derived from the analysis model using the probability density function of Rician fading and the bit error probability performance of Viterbi decoding in additive white Gaussian noise (AWGN) channels are shown to agree with the simulation results. The diversity method is applied to trellis-coded 8PSK modulation and coherent detection/differential detection, and their performances are compared with conventional QPSK modulation and coherent detection with high-coding-rate and high-coding-gain Viterbi decoding. QPSK with high-coding-rate Viterbi decoding can be an attractive candidate for mobile satellite systems as well as trellis-coded 8PSK.

本文言語English
ホスト出版物のタイトルGLOBECOM '90
出版社Publ by IEEE
ページ1127-1131
ページ数5
ISBN(印刷版)0879426322
出版ステータスPublished - 1990
イベントIEEE Global Telecommunications Conference & Exhibition Part 3 (of 3) - San Diego, CA, USA
継続期間: 1990 12 21990 12 5

出版物シリーズ

名前IEEE Global Telecommunications Conference and Exhibition
2

Other

OtherIEEE Global Telecommunications Conference & Exhibition Part 3 (of 3)
CitySan Diego, CA, USA
Period90/12/290/12/5

ASJC Scopus subject areas

  • 工学(全般)

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