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Proceedings Paper

A new approach for QoS support in optical burst switching networks
Author(s): Changbiao Xu; Keping Long; Bibo Zhang; Shizhong Yang
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Paper Abstract

This paper presents a new approach for quality of service (QoS) support in optical burst switching (OBS) networks. In the approach, the data channels of an outgoing link at a core node are divided into multiple groups, with each group corresponding to a service class. The number of data channels in each group is mainly determined by data traffic. In general, a data burst (DB) can be sent on a data channel reserved by its burst head packet (BHP) only in its own group. Upon failing to reserve any bandwidth in its own group, the BHP tries to re-reserve even preempt bandwidth on a data channel in a lower-priority group. A lower-priority BHP can't reserve bandwidth on any data channel in a higherpriority group. In addition, this paper also investigates the reasonable relation between the preempting DB length and the preempted DB length.

Paper Details

Date Published: 9 December 2005
PDF: 8 pages
Proc. SPIE 6021, Optical Transmission, Switching, and Subsystems III, 60210X (9 December 2005); doi: 10.1117/12.634818
Show Author Affiliations
Changbiao Xu, Chongqing Univ. (China)
Chongqing Univ. of Posts and Telecommunications (China)
Keping Long, Chongqing Univ. of Posts and Telecommunications (China)
Bibo Zhang, Chongqing Univ. of Posts and Telecommunications (China)
Shizhong Yang, Chongqing Univ. (China)


Published in SPIE Proceedings Vol. 6021:
Optical Transmission, Switching, and Subsystems III
Rodney S. Tucker; Dominique Chiaroni; Wanyi Gu; Ken-ichi Kitayama, Editor(s)

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