An Improved Stop-and-Wait ARQ Logic for Data Transmission in Mobile Radio Systems

An efficient Automatic-Repeat-Request (ARQ) logic, for use in systems with high error rate two-frequeney-simplex data channels, is proposed. The throughput efficiency provided by this logic is compared with that of conventional "stop-and-wait" ARQ, and a significant improvement is shown to be available. Particular emphasis is placed on the use of this logic for data transmission to mobile land vehicles.

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