Performance Engineering of Transparent Widearea Optical WRN Networks Through Static Routing (Considering Restoration)

Subject Areas : Renewable energy

Mehdi Karimian ¹ , Seyed Sadegh Fadaei ²

1 - Instructor/Islamic Azad University - Najafabad Branch
2 - Yasooj University

Received: 2009-08-05 Accepted : 2010-07-10 Published : 2011-11-01

Keywords: routing, Transparent wavelength routed network, network-layer performance, physical-layer performance, routing algorithm,

Abstract :

The all-optical transparent wavelength routed network is a promising candidate for the next-generation backbone network to provide large bandwidth at low cost. Due to transmission impairments, present in fibers and optical components, may significantly affect the quality of a lightpath, and, hence, in wavelength routed transparent optical networks, the best routing optimization, which is determined only by network-layer performance, might not be the best one or even worse after physical-layer performance taken into account. In order to overcome the above limitation, in this paper, we propose that routing optimizations should be evaluated from both network-layer performance and physical-layer performance and the best routing optimization should be chosen based on the overall performances, not just the network-layer performance. Also the network restoration has to be considered.