IEEE/ACM Transactions on Networking (TON)
Computer Networks: The International Journal of Computer and Telecommunications Networking
Traffic grooming in unidirectional WDM ring networks using genetic algorithms
Computer Communications
Traffic grooming in WDM networks: past and future
IEEE Network: The Magazine of Global Internetworking
Information Sciences: an International Journal
Reconfigurable grooming of dynamic traffic in SONET/WDM ring networks
Journal of High Speed Networks
Grooming of Dynamic Traffic in WDM Tree Networks Using Genetic Algorithms
ISNN 2009 Proceedings of the 6th International Symposium on Neural Networks: Advances in Neural Networks - Part II
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Traffic grooming is widely employed to minimize the number of ADM's in today's WDM rings to reduce the total cost of the network. Since traffic often changes over time, the problem of grooming dynamic traffic becomes more and more important. In this paper, we use the technique of splitting traffic to the grooming of arbitrary dynamically changed traffic in a strictly non-blocking way in SONET/WDM rings. Two splitting methods: traffic-cutting and traffic-dividing are introduced, and the third method, dividing a traffic first and then cutting it, is also proposed. The grooming performance for static and dynamic traffic with these three methods is analyzed in detail. A genetic algorithm (GA) based on these methods is proposed. Computer simulation results under different conditions show that our algorithm is efficient in reducing both the numbers of ADM's and wavelengths required.