A Comparison of Selected Gbn Arq Schemes for Variable-error-rate Channel Using Qam
نویسندگان
چکیده
In non-stationary channels, error rates vary considerably. The paper compares Yao’s Adaptive Go-backN (GBN) Automatic-Repeat-Request (ARQ) scheme with Adaptive go-back-N with sliding window mechanism which both estimate the channel state in a simple manner, and adaptively switch their operation mode. The throughput of these schemes is compared in conditions of Additive White Gauss Noise (AWGN) channel with independent errors using 16-QAM modulation.
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