Bhyri Sai Kishore

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A Colorless and Directionless (C&D) ROADM architecture has empowered today's networks with the much needed flexibility and scalability to handle the unpredictable high bandwidth demands, provide any-to-any connectivity and provision new services without disrupting the existing ones. In this paper, we realize the C&D ROADM architectures using(More)
Service Providers are constantly searching for means to reduce costs, generate new revenue streams and increase their competitive advantage. The migration to Colorless and Directionless mesh architecture will enable the Service Providers to realize new scalability, availability, flexibility and dynamic reconfigurability demands for optical networks. But(More)
Flexible spectrum ROADMs facilitate networks to support channels operating at heterogeneous line rates by allocating spectral resources in a dynamic and flexible manner leading to better Spectral Efficiency. In a realistic network, traffic scenario is very dynamic in nature leading to continuous tear down of existing demands and set up of new demands. This(More)
While the network traffic has seen exponential increase, the revenues have not maintained the same pace. New methods have to be explored to reduce this gap between traffic and revenue. One such method is convergence in networking layers. In this work, we study the convergence of OTN and DWDM layer from a network planning perspective. We compare the costs of(More)
Next generation of optical networks will witness the advent of flexible spectrum/grid reconfigurable optical add drop multiplexers (ROADMs). The pass band of these next generation ROADMs can be varied depending on the spectral width of the incoming signal. With the pass band becoming a variable, spectrum allocation becomes an added constraint to the(More)
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