By Topic

Adaptive routing considering the number of available wavelengths in WDM networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Younghwan Yoo ; Sch. of Comput. Sci. & Eng., Seoul Nat. Univ., South Korea ; Sanghyun Ahn ; Chong Sang Kim

In most existing studies of wavelength-division multiplexing networks, the problems of routing and wavelength assignment are generally treated separately, since it is NP-complete to produce the optimal solutions for the two problems at the same time. The four presented adaptive routing algorithms, however, consider the availability of wavelengths during the routing process. Our algorithms favor paths with the near-maximum number of available wavelengths between two nodes, resulting in improved load balancing. Simulations show that our algorithms reduce call blocking by nearly half when compared with the least-loaded and the k-fixed routing algorithms in some small networks using the first-fit wavelength assignment policy. In addition, simulation and analysis show that the path length of our algorithms is almost the same as those of the other algorithms.

Published in:

IEEE Journal on Selected Areas in Communications  (Volume:21 ,  Issue: 8 )