Turbo-detected unequal protection MPEG-4 audio transceiver using convolutional codes, Trellis Coded Modulation and Space-Time Trellis Coding

Noor Shamsiah Othman, S. X. Ng, L. Hanzo

Research output: Contribution to journalArticle

Abstract

A jointly optimised turbo transceiver capable of providing unequal error protection is proposed for employment in an MPEG-4 aided audio transceiver. The transceiver advocated consists of Space-Time Trellis Coding (STTC), Trellis Coded Modulation (TCM) and two different-rate Non-Systematic Convolutional codes (NSCs) used for unequal error protection. A benchmarker scheme combining STTC and a single-class protection NSC is used for comparison with the proposed scheme. The audio performance of the both schemes is evaluated when communicating over uncorrelated Rayleigh fading channels. It was found that the proposed unequal protection turbo-transceiver scheme requires about two dBs lower transmit power than the single-class turbo benchmarker scheme in the context of the MPEG-4 audio transceiver, when aiming for an effective throughput of 2 bits/symbol, while exhibiting a similar decoding complexity. Crown

Original languageEnglish
Pages (from-to)1600-1604
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume61
Issue number3
Publication statusPublished - 17 Oct 2005

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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