A knowledge-combined system approach to optimum design of type-I hybrid ARQ/FEC error control schemes
Date
1990
Authors
Yang, Qing
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Abstract
In this work, a systematic approach to optimum coding design for Type-I Hybrid ARQ/FEC error control schemes is developed. A knowledge-combined expert system method is proposed for optimal coding selection. Performance analysis is further discussed for Type-I Hybrid ARQ schemes. Particularly, a simple time delay analysis is carried out by using queueing theory. Finally, a pragmatic approach to design an optimum Type-I hybrid ARQ scheme with BCH error correcting code is developed by introducing overall throughput as a system performance measure. This optimization provides a further improvement of the overall throughput efficiency with reasonable implementation complexity which is found to have a local maximum in the throughput contour plot.