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Article

Hard-Decision in COVQ Over Waveform Channels

Published: 28 March 2000 Publication History

Abstract

A channel optimized vector quantizer (COVQ) is studied for the case of transmission over waveform channel. In this work, a number of modulation schemes with multidimensional signal constellations are considered, specifically, results on the binary signaling, M-ary phase-shift keying (MPSK) and M-ary quadrature amplitude modulation (MQAM) performance using COVQ over a waveform channel are provided.The proposed system, based on COVQ with hard-decision decoding, is optimized for additive white Gaussian noise (AWGN) and flat-fading Rayleigh channels. In addition, when flat-fading Rayleigh channel is assumed, diversity techniques are used and evaluated to improve the performance of the system.

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Published In

cover image Guide Proceedings
DCC '00: Proceedings of the Conference on Data Compression
March 2000
ISBN:0769505929

Publisher

IEEE Computer Society

United States

Publication History

Published: 28 March 2000

Author Tags

  1. COVQ
  2. Gaussian channels
  3. PSK and QAM modulation
  4. diversity techniques
  5. flat-fading Rayleigh channels
  6. hard-decision

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