New burst coherent demodulator for microcellular TDMA/TDD systems

Yoichi Matsumoto, Shuji Kubota, Shuzo Kato

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper proposes a new burst coherent demodulator that improves transmission quality of microcellular TDMA/TDD systems for personal communications and has configuration suitable for low power consumption with LSIC-implementation. To achieve the better transmission quality, the proposed demodulator employs coherent detection with a unique carrier recovery scheme that can operate without any preamble for carrier recovery. In addition, the demodulator uses a clock recovery scheme with clock phase estimation using twice differentiation, which eliminates hangup and attains fast clock acquisition at 2 samples/symbol. Experimental results clarify the superiority of the proposed coherent demodulator for microcellular TDMA/TDD systems. The proposed coherent demodulator reduces the irreducible frame error rate by 40%, and achieves 4 dB improvement at the frame error rate of 10% compared with differential detection under the Rayleigh fading (fD/fs = 8×10-5, τrms/Ts = 5×10-2) typical of personal communication environments.

Original languageEnglish
Pages (from-to)927-933
Number of pages7
JournalIEICE Transactions on Communications
VolumeE77-B
Issue number7
Publication statusPublished - 1994 Jul 1

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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