Optimal Waveband Switching in Optical Ring Networks

• Published in: 2010 Proceedings IEEE INFOCOM pp. 1 - 9
• Main Authors: Turkcu, Onur, Subramaniam, Suresh
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-03-2010
• Subjects: Communication switching; Communications Society; Cost function; Network topology; Optical fiber networks; Optical switches; Peer to peer computing; Telecommunication switching; Telecommunication traffic; Wavelength division multiplexing
• ISBN: 1424458366; 9781424458363
• ISSN: 0743-166X; 2641-9874
• DOI: 10.1109/INFCOM.2010.5462165

Waveband switching saves port costs in optical crossconnects by grouping together a set of consecutive wavelengths and switching them as a single waveband. Previous work has focused on either uniform band sizes or non-uniform band sizes considering a single node. In this paper, we show that such solutions are inadequate when considering the entire network, and present a novel framework for optimizing the number of wavebands in a ring network for deterministic traffic. We then consider a specific type of traffic, namely, all-to-all traffic and present bounds and heuristic solutions for the problem. Our results show that the number of ports can be reduced by a large amount using waveband switching compared to wavelength switching. We also numerically evaluate the performance of our waveband design algorithms under dynamic stochastic traffic.