Naslov
Routing and Wavelength Assignment in Optical Networks Using Bin Packing Based algorithms

Autori
Skorin-Kapov, Nina

Izvornik
European Journal of Operational Research (0377-2217) 177 (2007), 2; 1167-1179

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
OR in telecommunications; routing and wavelength assignment; bin packing; optical networks

Sažetak
This paper addresses the problem of routing and wavelength assignment (RWA) of static lightpath requests in wavelength routed optical networks. The objective is to minimize the number of wavelengths used. This problem has been shown to be NP-complete and several heuristic algorithms have been developed to solve it. We suggest very efficient, yet simple, heuristic algorithms for the RWA problem developed by applying classical bin packing algorithms. The heuristics were tested on a series of large random networks and compared with an efficient existing algorithm for the same problem. Results indicate that the proposed algorithms yield solutions significantly superior in quality, not only with respect to the number of wavelength used, but also with respect to the physical length of the established lightpaths. Comparison with lower bounds shows that the proposed heuristics obtain optimal or near optimal solutions in many cases.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA