International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
In WDM networks, the huge bandwidth offered by fiber is managed by splitting it into a number of wavelengths, each acting as an independent communication channel. There are three popular switching techniques, Optical Circuit Switching (OCS), Optical Packet Switching (OPS) and Optical Burst Switching (OBS). Optical burst switching combines the features of both the OCS and OPS. The key issue in OBS networks is efficient scheduling. Basically there are two types of scheduling algorithms, horizon and void filling scheduling algorithm used for scheduling in OBS network.