Research Article
A Novel MAC Protocol for Mixed Traffics in LEO Satellite Networks
@INPROCEEDINGS{10.1109/ChinaCom.2011.6158167, author={Mingxiang Guan and Yuchen Wang and Qing Guo}, title={A Novel MAC Protocol for Mixed Traffics in LEO Satellite Networks}, proceedings={6th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2012}, month={3}, keywords={leo satellites; adaptive; mac protocol}, doi={10.1109/ChinaCom.2011.6158167} }- Mingxiang Guan
Yuchen Wang
Qing Guo
Year: 2012
A Novel MAC Protocol for Mixed Traffics in LEO Satellite Networks
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2011.6158167
Abstract
Considering that weak channel collision detection ability, long propagation delay and heavy load in LEO satellite communications，a valid adaptive MAC protocol was proposed. Different access probability functions for different services were obtained and appropriate access probabilities for voice and data users were updated slot by slot based on the estimation of the voice traffic and the channel status. In the proposed MAC protocol limited wireless resource is allocated reasonably by multiple users and high capacity was achieved. Three performance parameters: voice packet loss probability, average delay of data packets and throughput of data packets were considered in simulation. Finally simulation results demonstrated that the performance of system was improved by the proposed MAC protocol, with an acceptable trade-off between QoS of voice and delay of data.
