Modeling the impact of control plane losses on the performance of optical burst switched core node

Authors:
Lalit Kumar Pagaria;T. Venkatesh;C. Siva Ram Murthy
Affiliations:
Department of Computer Science and Engineering, IIT Madras, Chennai, India;Department of Computer Science and Engineering, IIT Guwahati, Guwahati, India;Department of Computer Science and Engineering, IIT Madras, Chennai, India
Venue:
IEEE Communications Letters
Year:
2010

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Abstract

The performance of a core node in optical burst switched networks is usually assumed to be limited by the losses in the data plane. We investigate the significance of losses in the control plane due to insufficient offset time and evaluate their contribution in the overall loss probability. We model the control plane with an M/M/1 queue with reneging to evaluate the loss of Burst Header Packets (BHPs) due to insufficient offset time as the load increases. We propose a method to estimate the offset time with variable queueing and processing times and investigate the effect of the control plane parameters on the burst loss probability using both analytical and simulation studies.