Destination and channel snooping multiple access (DCSMA) for multi-channel optical local area networks

This paper presents a novel multiple-access technique called destination and channel snooping multiple access (DCSMA) for use in high-speed optical fiber local area networks based on the passive star coupler topology. This method is concerned with the reduction of packet collisions in the network to improve the throughput by snooping to determine the available time for packet transmission. A mathematical model is developed and analyzed. The numerical results show that the proposed method gives a better performance than that of conventional protocols when receiver collisions are unavoidable.