A reservation-based multicast protocol for WDM optical star networks
IEEE Journal on Selected Areas in Communications(2004)
摘要
In this paper, we present a reservation-based medium access control (MAC) protocol with multicast support for wavelength-division multiplexing networks. Our system is based on the single-hop, passive optical star architecture. Of the available wavelengths (channels), one channel is designated as a control channel, and the remaining channels are used for data transmission. Each node is equipped with a pair of fixed transceiver to access the control channel, and a fixed transmitter and a tunable receiver to access data channels. For easy implementation of the protocol in hardware and for precisely computing the protocol's processing overhead, we give a register-transfer model of the protocol. We simulate the protocol to study its throughput behavior, and present its analytic model. For a node to be able to send data packets in successive data slots with no time gap between them, in spite of the situation that the protocol's execution time may be longer than data transmission time, we propose the idea of multiple MAC units at each node. Unicast throughput of our protocol reaches the theoretically possible maximum throughput for MAC protocols with distributed control, and the multicast throughput is at least as good as, and even better than, those delivered by existing MAC protocols with distributed control.
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关键词
access protocols,distributed control,multicast protocols,optical fibre networks,packet reservation multiple access,transceivers,wavelength division multiplexing,MAC,WDM,data transmission,distributed control,fixed transmitter,hardware implementation,multicast protocol,multiple MAC unit,register-transfer model,reservation-based medium access control protocol,single-hop passive optical star architecture,transceiver,tunable receiver,wavelength-division multiplexing network,65,Hardware implementation,MAC,WDM,medium access control,multicast,optical star,protocol,wavelength-division multiplexing
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