IEEE/ACM Transactions on Networking (TON)
Cost-effective traffic grooming in WDM rings
IEEE/ACM Transactions on Networking (TON)
Traffic grooming in an optical WDM mesh network
IEEE Journal on Selected Areas in Communications
Traffic grooming in WDM networks: past and future
IEEE Network: The Magazine of Global Internetworking
Rerouting schemes for dynamic traffic grooming in optical WDM networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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We consider the problem of efficient grooming of low-speed connections onto high-capacity lightpaths in WDM mesh networks. Maximizing the throughput and minimizing the network cost are the two most important objectives of the traffic grooming problem. It may not be possible to achieve both the goals simultaneously. We present an efficient heuristic algorithm to maximize throughput without compromising on the network cost. Our algorithm decides the placement of the transceivers at the nodes instead of operating on a fixed number of transceivers. Multihop routing and rerouting techniques have been used to achieve higher throughput. We use a two stage ILP approach to enable comparison of our algorithm with the optimum. We also present simulation results to contrast the performance of our approach with two recently proposed heuristic algorithms. This work was supported by the Department of Science and Technology, New Delhi.