Abstract
In optical WDM mesh networks, traffic grooming is essential in order to utilize the bandwidth efficiently to minimize the cost and meet the user service requirement. By grooming traffic, it is possible to reduce the total cost of all Add drop multiplexer needed. Also for the high processing capability in a WDM network, the path should be capable of carrying the traffic without any failure. In this study, we use a traffic grooming algorithm to establish light paths between node pairs having the largest amounts of traffic. Among the established light paths, the risk-disjoint paths are obtained using the large traffic first algorithm. After establishing light paths, the traffic is routed from the source to the connection node and then traffic is transmitted from the connection node to the destination node. In addition to the efficient routing, we propose a wavelength allocation technique to ensure that the traffic is transferred to the destination with efficient use of the network resources. From the simulation results we show that this algorithm involves additional capacity in the virtual topology to support survivable routing of connections.
Highlights
We use a traffic grooming algorithm to establish light paths between node pairs having the largest amounts of traffic
From the simulation results we show that this algorithm involves additional capacity in the virtual topology to support survivable routing of connections
We examine the performance of our Efficient Multipath Routing and Wavelength Allocation Using Traffic Grooming (MRWATG) technique with an extensive simulation study based upon the ns-2 network simulator
Summary
Each fiber can carry a large number of high-capacity channels Dividing these channels into lower-bandwidth virtual connections between couples of nodes gives rise to technical difficulties: wavelengths are at most a few hundreds; they need to be time-multiplexed to be shared among many couples of communicating nodes. The key components to achieve time multiplexing, the Add-Drop Multiplexers (ADM), are needed each time a wavelength has to be processed electronically at a node in order to add or drop packets. They represent a significant fraction of the total cost of the infrastructure (Sinha et al, 2012)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
