Supporting QoS with look-ahead window contention resolution in optical burst switched networks

Optical burst switching (OBS) has been proposed as a competitive hybrid switching technology to support the next-generation optical Internet. This paper addresses the problem of contention in OBS networks and introduces a new contention resolution algorithm called look-ahead window contention resolution (LCR) that can also support service differentiation. Simulation results show that the performance of LCR is competitive to existing contention resolution mechanisms in terms of reducing burst loss.