Time-wavelength assignment algorithms for high performance WDM star based systems

Presents time-wavelength scheduling algorithms for WDM star based networks. The algorithms incorporate the unique aspects of WDM communication such as a number of tunable transmitters and receivers at each node, the tuning time, and a limited number of wavelengths. The transmission duration is composed of two elements: 1) the packet transmission time and 2) the tuning time of the system's transmitters and receivers. Based on the ratio between these two elements, the authors designed two scheduling algorithms. The first algorithm provides a minimal packet transmission duration, while trying to minimise the tuning time. The second algorithm obtains a schedule with a minimal tuning duration, while minimising the packet transmission time of the schedule.>