A survey of differentiated QoS schemes in optical burst switched networks

Authors:
B. Praveen;J. Praveen;C. Siva Ram Murthy
Affiliations:
Department of Computer Science, Purdue University, IN 47906, United States;Department of Computer Science, University of Illinois Urbana-Champaign, IL 61820, United States;Department of Computer Science and Engineering, Indian Institute of Technology Madras, Sardar Patel Road, Chennai 600036, India
Venue:
Optical Switching and Networking
Year:
2006

Citing 2
Cited 1

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Abstract

Optical Burst Switching (OBS) has proved to be an efficient paradigm for supporting IP-over-WDM networks. The growth of a variety of applications which transmit voice, data, video and multimedia, has necessitated the need to provide Quality of Service over OBS networks. We present a survey of various existing schemes that provide differentiated service. We classify these schemes based on the stage at which service differentiation is performed, namely assembly time, reservation, scheduling, and contention resolution and compare the advantages and disadvantages of each scheme. We then present a model of how differentiated QoS can be provided in terms of various grades of protection mechanisms.