Performance tradeoff among concatenated codes and processing gains for high capacity DS/CDMA transmission in wireless communications

Melanie Y.F. Wong, K. Ben Letaief

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

In this paper, we evaluate the use of a proposed Forward Error Correction (FEC) scheme as well as concatenated coding in asynchronous DS/CDMA system over multipath Rayleigh fading channels. The FEC scheme combines selection diversity with low complexity concatenated codes which consist of a Reed-Solomon outer code and a convolutional inner code. Chernoff bounds and Union bounds for both coding schemes are derived, and the tightness of these bounds are confirmed by computer simulations. We analyze the BER performance and capacity tradeoffs between various system parameters under a fixed total bandwidth expansion and concatenated codes constraint requirements. In addition, the throughput performance for both systems is presented under fixed processing gain/signal-to-noise ratio constraints. It is shown that the proposed system drastically decreases the BER and increases the system capacity.

Original languageEnglish
Pages969-973
Number of pages5
Publication statusPublished - 1 Jan 1997
EventProceedings of the 1997 IEEE International Conference on Communications, ICC. Part 3 (of 3) - Montreal, Can
Duration: 8 Jun 199712 Jun 1997

Other

OtherProceedings of the 1997 IEEE International Conference on Communications, ICC. Part 3 (of 3)
CityMontreal, Can
Period8/6/9712/6/97

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Wong, M. Y. F., & Letaief, K. B. (1997). Performance tradeoff among concatenated codes and processing gains for high capacity DS/CDMA transmission in wireless communications. 969-973. Paper presented at Proceedings of the 1997 IEEE International Conference on Communications, ICC. Part 3 (of 3), Montreal, Can, .