A comparison of trellis coded and Reed-Solomon coded hybrid-ARQ protocols over slowly fading Rayleigh channels |
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| Authors: | Lars K. Rasmussen Michael J. Bartz Stephen B. Wicker |
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| Affiliation: | (1) Mobile Communications Research Centre, Institute for Telecommunications Research, University of South Australia, Warrendi Road, The Levels, 5095, SA, Australia;(2) Department of Electrical Engineering, University of Memphis, 38152 Memphis, TN, USA;(3) School of Electrical and Computer Engineering, Georgia Institute of Technology, 30332 Atlanta, GA, USA |
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| Abstract: | The performance of trellis coded and Reed-Solomon coded ARQ error control systems over slowly fading Rayleigh channels are compared and contrasted in this paper. First, a two-code CRC-TCM type-I hybrid-ARQ scheme based on separate error correction and error detection codes is compared to a one-code Reed-Solomon protocol in which retransmission requests are generated within the decoding process. The performance of the associated packet combining protocols is also compared. It is shown that for similar levels of complexity, a onecode Reed-Solomon approach offers both better throughput and reliability performance than the TCM schemes in almost all cases. |
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