A comparison of protocols for a meteor-burst channel based on a time-varying channel model
Abstract
The performance of a meteor-burst (MB) communication system using three different protocols is examined. 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 SNR present in an MB channel. This model is compared to a less sophisticated constant-SNR model and found to predict significantly more optimistic performance.
- Publication:
-
IEEE Transactions on Communications
- Pub Date:
- January 1989
- Bibcode:
- 1989ITCom..37...18M
- Keywords:
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- Bit Error Rate;
- Channels (Data Transmission);
- Meteor Trails;
- Meteoroid Showers;
- Packet Transmission;
- Earth Atmosphere;
- Signal To Noise Ratios;
- Communications and Radar