Radioengineering (Sep 2002)

A Comparison of Selected GBN ARQ Schemes for Variable-Error-Rate Channel Using QAM

  • Kotuliakova,
  • K.,
  • J. Polec,
  • P. Kosut,
  • P. Alexova

Journal volume & issue
Vol. 11, no. 3
pp. 43 – 48

Abstract

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In non-stationary channels, error rates vary considerably. The papercompares Yao's Adaptive Go-back-N (GBN) Automatic-Repeat-Request (ARQ)scheme with Adaptive go-back-N with sliding window mechanism which bothestimate the channel state in a simple manner, and adaptively switchtheir operation mode. The throughput of these schemes is compared inconditions of Additive White Gauss Noise (AWGN) channel withindependent errors using 16-QAM modulation.