Static and Dynamic Connection Establishment in WDM Optical Networks: A Review

Abstract

In this paper, we give a brief review of the work done by various researchers over the years in the area of Wavelength Division Multiplexed (WDM) optical network and more specifically in the area of connection establishment. Optical WDM is the most promising solution for setting up of the next generation networks. Static and dynamic lightpath establishments are the two types of lightpath establishments in WDM networks. In static environment the lightpath establishment is permanent, whereas in dynamic environment the lightpaths are established in real time and taken down as per requirement. We review the important algorithms under static and dynamic connection establishment. We also discuss the use of evolutionary algorithms in optical networks and review distributed optical network control algorithms, as these topics are generating lot of interest now-a-days. To make this review concise, we have confined it to the cases where connections are established in WDM networks without wavelength converters.

Indexing terms:

• WDM
• Lightpath
• Virtual topology
• Multihop
• RWA
• Evolutionary algorithm

Additional information

Notes on contributors

Raja Datta

Raja Datta received his BE degree in electronics and telecommunications engineering from Regional Engineering College (presently NIT), Silchar, India in the year 1988. He received his MTech degree in computer engineering and PhD degree in computer science and engineering both from Indian Institute of Technology Kharagpur.

Since 1990 he is working as a faculty member in North Eastern Regional Institute of Science and Technology (NERIST), Arunachal Pradesh, India, where he is holding the position of Assistant Professor and is presently the Head of the Department of Computer Science and Engineering. His research interests include computer architecture, computer networks, WDM optical networks and distributed processing.

Indranil Sengupta

Indranil Sengupta received his BTech, MTech and PhD degrees in computer science and engineering from the University of Calcutta in 1983,1985 and 1990 respectively. During 1985–1988, he taught in the Department of Computer Science, University of Calcutta.

Since 1988, he has been with the Department of Computer Science and Engineering, Indian Institute of Technology Kharagpur, where he is currently a Professor. His current research interests include computer networks, mobile computing, VLSI testing, and fault-tolerant system design.