[IEEE Fourth International Conference on Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. 2003 Joint - Singapore (15-18 Dec. 2003)] Fourth International Conference on Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint - A dynamic traffic grooming algorithm in multi-granularity heterogeneous optical WDM mesh networks