A load balanced approach of multicast routing and wavelength assignment in WDM networks. (2015)

• Record Type: Journal Article
• Authors: Barat, Subhendu; Pal, Ajit; De, Tanmay
• Is Part Of: International journal of communication networks and distributed systems. Volume 15:Number 1(2015)
• Page Start: 1
• Page End: 21
• Publication Date: 2015
• Subjects: wavelength division multiplexing -- WDM networks -- multicast routing -- wavelength assignment -- light tree -- load balancing -- throughput -- splitting -- optical fibre networks -- simulation; Computer networks -- Periodicals; Telecommunication systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; 004.6
• Languages: English
• ISSNs: 1754-3916

Abstract

Multicast routing and wavelength assignment (MRWA) deals with the problem of one-to-many communication in a wavelength division multiplexed optical fibre networks. As physical optical networks are equipped with finite number of optical channels in each fibre cable, throughput of the network is treated as a major performance issue. The aim of this work is to maximise throughput in a finite wavelength WDM network. As to establish multicast session a single message may need to split into multiple messages fanning out of a node, the node must contain costly splitters. This work also considers the cost of splitting at the split nodes while establishing a light-tree for a particular multicast session request. Here a load-balancing technique is used to optimise the optical channel requirements to establish a multicast connection. The algorithm proposed here is compared with standard all-shortest path algorithm combined with first-fit wavelength assignment for multicasting by simulation on various network topologies and different network configurations. The simulation result shows that our proposed algorithm performs much better than the standard one.