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Asymptotic performance analysis of hybrid ARQ protocols in slotted direct-sequence code division multiple-access networks

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2 Author(s)
J. M. Hanratty ; Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA ; G. L. Stuber

The performance of hybrid automatic repeat-request (ARQ) protocols in slotted direct-sequence code-division multiple-access networks is analyzed. A Markov model is used to derive throughput-delay expressions in terms of the channel cutoff rate and capacity. Network design parameters are identified and their dependency on systems parameters is examined in detail. It is shown that, for a given population size, traffic intensity, and ratio of bit energy to background noise, there is an optimal probability of retransmission, code rate, and processing gain that maximizes performance. The stability of the network is also discussed

Published in:

INFOCOM '89. Proceedings of the Eighth Annual Joint Conference of the IEEE Computer and Communications Societies. Technology: Emerging or Converging, IEEE

Date of Conference:

23-27 Apr 1989