Performance of ARQ Go-Back-N protocol in Markov channels with unreliable feedback

Authors:
Michele Zorzi;Ramesh R. Rao
Affiliations:
Center for Wireless Communications and Department of Electrical and Computer Engineering, University of California at San Diego, La Jolla, CA;Center for Wireless Communications and Department of Electrical and Computer Engineering, University of California at San Diego, La Jolla, CA
Venue:
Mobile Networks and Applications
Year:
1997

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Abstract

In this paper, an ARQ Go-Back-N protocol with time-out mechanism is studied. Transmissions on both the forward and the reverse channels are assumed to be subject to Markovian errors. A recently developed approach, based on renewal theory, is further extended and the steady state average number of packets in the ARQ system is evaluated. This allows us to determine analytically both throughput and transmission delay of the system. Simulation results, that confirm the analysis, are also presented. Based on the analysis, the trade-off involved in the choice of the time-out parameter is identified and discussed.