Media access protocols for high speed data bus-a simulation study

Abstract

The authors discuss a high-speed data bus for satellite (HSDB-S) architecture and evaluate media access control (MAC) protocols. They simulated the fiber distributed data interface (FDDI) protocol, which is applicable to HSDB, for asynchronous and synchronous traffic in terms of throughput, delay, queue length, and station latency. They propose a deferred priority protocol and compare throughput-delay performance with preemptive priority and normal (FDDI) priority protocols. The deferred priority protocol is shown to provide better throughput than the preemptive priority protocol, but results in less delay performance for highest-priority messages. For lowest-priority traffic, the preemptive priority protocol provides the least throughput, and the worst delay performance. >