The Performance Comparison of DAMA MAC Schemes over Satellite Networks

Satellite networks gives high bandwidth and wide coverage of geographic area. Satellite capacity is frequently limiting resource and it must be used efficiently. Internet traffic is highly bursty in nature and Demand Assignment Multiple Access (DAMA) techniques are suitable to provide bandwidth to match instantaneous requirements and give significant improvements in the delay/utilization performance of Geo-stationary Earth Orbit (GEO) satellite channels supporting a limited number of customers with bursty data traffic. Thus, the performance of different DAMA MAC schemes is significant. In the paper, we examine the performance of CFDAMA and BTDAMA protocols on satellite networks and proposes an extension to BTDAMA, User Prioritized-BTDAMA (BTDAMA-UP) which implements Quality of Service (QoS) by user prioritization so that different group of users will get different level of service.