CFB Under Sliding-Window Protocols in Error Channels

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Executive Summary

The authors study the error performance of the stream-based Cipher Feedback Mode (CFB) under go-back-N and selective-reject, in an error channel in terms of throughput. They model the performance of the CFB in terms of throughput and derive the number of stages needed to achieve the optimal throughput, under a given an error rate in an error channel. In this paper, they study the performance of a stream cipher mode called Cipher Feedback Mode (CFB) with the link control mechanisms sliding-window protocols including go-back-N ARQ (Automatic Repeat-ReQuest) and selective-reject ARQ.

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