Performance analysis of topologies for optical wavelength convertible networks |
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Authors: | Chunyong Yang Shaoping Chen |
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Institution: | College of Electronics Information Engineering, South-Central University for Nationalities, Wuhan 430074, China |
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Abstract: | An architecture of wavelength converters shared per-node wavelength cross-connects is proposed to function the optical node in simulation. And first-fit wavelength allocation algorithm and Dijkstra shortest path routing algorithm are used. It is shown that star topology performs the best on blocking probability, average hop count and average packet delay, but it is unfavorable on link utilization. Furthermore, wavelength conversion is not ideal for the star topology. However, the ring topology network is the cost-optimal one if the appropriate wavelength conversion capability in network is to be considered. |
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