Distributed redundant reservation protocol and QoS provisioning in WR-OBS system

摘要

Wavelength Routed Optical Burst Switching (WR-OBS) is considered an efficient switching technique in optical networks, especially in the situation of no wavelength converters. A QoS scheme based on centralized scheduler has been proposed in this architecture. Unfortunately, this scheme has some drawbacks. To overcome these drawbacks, a distributed redundant reservation protocol and corresponding QoS scheme has been proposed in this paper. Simulation and analytical model are conducted to evaluate the performance of the newly proposed protocol in terms of burst lost probability.