EM-CRMA-II: a high-performance media access protocol for ring wavelength division multiplex (WDM) networks

摘要

Abstract: In this paper, we propose the EM-CRMA media access protocol which supports a multi- channel wavelength-division-multiplex (WDM) network architecture with a ring topology for high-speed LAN and MAN networks. EM-CRMA-II is an enhancement of the CRMA-II (cycle-reservation-media access) protocol. In a single physical WDM network, it supports both a high speed circuit-switched network and a moderate speed packet-switched network. In EM- CRMA-II, various services including unicasting, multicasting, and broadcasting are efficiently supported in the circuit-switched network; datagram traffic with different speed and continuity characteristics is supported in the packet-switched network. Backed by effective scheduling algorithms of our design, EM-CRMA-II provides an integrated support for multimedia traffic.!20