Performance improvement study and an asynchronous transmission WDMA protocol for various size internet packets MANs

Abstract

The nature of the asynchronous transmission of variable size IP packets in a wavelength division multiplexing (WDM) ring MAN is studied in this paper. Especially, we introduce an asynchronous transmission WDMA protocol that takes provision to avoid both the data channels and the receiver collisions employing an effective transmission strategy at each node in a decentralized way. In this way, the proposed protocol achieves optimal fiber bandwidth exploitation, especially under high load conditions. The proposed network architecture uses all wavelengths for both transmission and reception, since each node is equipped with a tunable transmitter and a set of fixed tuned receivers. The strong advantage of the proposed WDMA protocol is that it achieves almost 290% throughput improvement as compared with another relative one. Finally, the performance measures evaluation is based on the simulation results of a Poisson traffic model that was properly developed.