A comparison of protocols for a meteor-burst channel based on time-varying channel model

This paper examines the performance of a meteor-burst (MB) communication system using three different protocols. The protocols were chosen to study the relative advantages of using a simple stop-and-wait ARQ scheme as well as the ability to sense the presence of a channel. It was found that for long messages, the use of the ARQ scheme gave significant performance improvement; however, when the message length was on the order of the average burst length, the use of the ARQ scheme was not helpful. For packet sizes on the order of the average burst length, it was found that the ability to sense the presence of the channel gave about a 20 percent reduction in the time necessary to complete a message, but for much shorter packet sizes, the channel probing was not needed. The model used to analyze these systems takes into account the time-varying signal-to-noise ratio (SNR) present in a MB channel. The performance predicted by this model is compared to a less sophisticated constant SNR model and it is found that the model used here predicts significantly more optimistic performance. 1989 IEEE

A comparison of protocols for a meteor-burst channel based on time-varying channel model Academic Article