Priority-Based Duplicate Burst Transmission Mechanism in Optical Burst Switching Networks

This paper proposes a priority-based duplicate burst transmission mechanism in an optical burst switching network to enhance the probability of successful reception of bursts. The performance of the proposed mechanism is evaluated by NS2 simulations. The authors' results show that the burst loss rate is improved especially under light traffic loads. Optical Burst Switching (OBS) is an alternative technology for the future optical Internet. In OBS, if the lightpath cannot be reserved for a pending burst, the burst will be blocked and lost. It has been shown that burst loss rates are very high in OBS networks due to wavelength contention at intermediate nodes.