科研成果详情

This paper discusses a novel anycast routing and wavelength assignment algorithm (ARWA) for static lightpath establishment in the wavelength division multiplexing (WDM) networks with the wavelength continuity constraint, in which optical switches are wavelength selective (WS) switches. The algorithm aims at minimizing wavelength number and controlling the maximal link load at the same time. The algorithm deals with ARAW in two approaches: (1) minimize the maximum times usage for all anycast requests in all links in route establishment; (2) a simple heuristic is applied on wavelength assignment for the route found based on the sequential coloring algorithm. Simulations show that our algorithm attains good performance in wavelength assignment for set of anycast requests.