An Efficient MAC Protocol For Optical WDM Networks with Simulation Evaluation

We present in this paper an efficient medium access control (MAC) protocol called iCSMA/CD for improving the efficiencies of optical wavelength division multiplexing (WDM) networks. The key idea behind the design of iCSMA/CD is similar to the well-known carrier sense multiple access with collision detection (CSMA/CD) MAC protocol for the Ethernet, in the sense that both use the CD technique to resolve contentions for the carrier. However, our proposed protocol is unique in that it exploits some look-ahead method for achieving better delay-throughput performance. Simulation experiments are conducted to evaluate the delay-throughput performance of a WDM ring network controlled by the proposed iCSMA/CD protocol and the results demonstrate the impressive advantages of iCSMA/CD