A Proposal of Simplified Viterbi Equalizer Applied to FWA Systems Employing 64QAM Signals (Wireless Communication Technologies)

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概要

• 論文の詳細を見る

• We propose a novel simplified Viterbi equalizer for high symbol rate FWA (Fixed Wireless Access) systems carrying 64QAM signals. Reduced complexity and improved performance are achieved adopting two approaches. The first one is reducing the number of survival paths, taking advantage of the large D/U common in LOS (line of sight) communications. The second one is using a multi-stage process to generate desired signal replicas based on their likelihoods. Computer simulations confirm that the proposed replica generation method offers a performance improvement of about 1 dB and the proposed Viterbi equalizer offers reduced complexity with no performance penalty compared to full Viterbi equalizer.

• 社団法人電子情報通信学会の論文
• 2006-03-01

著者

• Shirato Yushi

  Ntt Access Network Service Systems Laboratories Ntt Corporation

• WATANABE Kazuji

  NTT Network Innovation Laboratories, NTT Corporation

• Watanabe Kazuji

  Ntt Network Innovation Laboratories Ntt Corporation

• YOSHIOKA Hiroshi

  NTT East Corporation

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• A Proposal of Simplified Viterbi Equalizer Applied to FWA Systems Employing 64QAM Signals (Wireless Communication Technologies)

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