All-optical networks with sparse wavelength conversion
IEEE/ACM Transactions on Networking (TON)
Multiwavelength optical networks with limited wavelength conversion
IEEE/ACM Transactions on Networking (TON)
Computing approximate blocking probabilities for a class of all-optical networks
INFOCOM '95 Proceedings of the Fourteenth Annual Joint Conference of the IEEE Computer and Communication Societies (Vol. 2)-Volume - Volume 2
Models of blocking probability in all-optical networks with and without wavelength changers
IEEE Journal on Selected Areas in Communications
Benefits of wavelength translation in all-optical clear-channel networks
IEEE Journal on Selected Areas in Communications
A generalized framework for analyzing time-space switched optical networks
IEEE Journal on Selected Areas in Communications
Blocking analysis of dynamic traffic grooming in mesh WDM optical networks
IEEE/ACM Transactions on Networking (TON)
Competitive analysis of online traffic grooming in WDM rings
IEEE/ACM Transactions on Networking (TON)
Analysis of multi-hop traffic grooming in WDM mesh networks
Optical Switching and Networking
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Traffic grooming in optical networks employing wavelength division multiplexing (WDM) has gained prominence due to the prevailing disparity between the user requirement and wavelength capacity. Nodes in an optical network get upgraded to the latest grooming technology slowly with time. Hence, WDM grooming networks are expected to employ heterogeneous grooming architectures. In this paper, we develop an analytical model to evaluate the blocking performance of WDM grooming networks with heterogeneous grooming capabilities. We demonstrate the accuracy of the analytical model by comparing the analytical results with that of the simulation. We observe that analytical models with and without precise knowledge of the grooming architectures predict similar performance. The proposed analytical model can be employed by resource placement algorithms that identify a set of nodes and links that need to be upgraded when the resources are limited.