CSMA with reservations by interruptions (CSMA/RI): a novel approachto reduce collisions in CSMA/CD

摘要

This paper proposes an enhancement for the carrier sense multiplenaccess with collision detection (CSMA/CD) protocol, called CSMA withnreservations by interruptions (CSMA/RI). This new protocol uses a novelnapproach to reserve capacity by interrupting an ongoing packetntransmission. The performance of the protocol is studied by simulationsnunder realistic (long range dependent) traffic conditions and comparednto the CSMA/CD, token ring protocols, as well as with the worknconserving G/D/1 queue. It is demonstrated that CSMA/RI always offersnbetter performance than CSMA/CD, and under certain realistic assumptionsnregarding packet size, the performance of CSMA/RI can be very close tonthat of token-ring and G/D/1