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