Sparse Traffic Grooming in Survivable Optical Wavelength Division Multiplexing Mesh Networks

Abstract

Mostly survivability in optical Mesh network is major topic of discussion as failure in the high speed network will affect the services. Wavelength Division Multiplexing (WDM) technology has made it possible to use the large capacity of an optical fiber. In a WDM Network, survivability is a major area of concern as a WDM network carries a large amount of data. The failure of a network element could result in a large amount of data loss. The goal of survivability is to maintain connectivity and services after a failure. The proposed method is based on Survivable Traffic Grooming to address the gap between bandwidth capacity of wavelength and bandwidth requirement of a connection and also to provide fault tolerance. This method focuses on a sparse grooming network, where only a few network nodes have the traffic grooming capability. The objective is to provide a fault tolerant network while minimizing the network cost and maximize the network throughput as reducing the utilized number of wavelengths. We have compared the result of our system with Multicast traffic grooming with survivability in WDM mesh networks.