A new approach for QoS support in optical burst switching networks

Changbiao Xu; Keping Long; Bibo Zhang; Shizhong Yang

doi:10.1117/12.634818

8 December 2005 A new approach for QoS support in optical burst switching networks

Changbiao Xu, Keping Long, Bibo Zhang, Shizhong Yang

Proceedings Volume 6021, Optical Transmission, Switching, and Subsystems III; 60210X (2005) https://doi.org/10.1117/12.634818
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

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.

Citation Download Citation

Changbiao Xu, Keping Long, Bibo Zhang, and Shizhong Yang "A new approach for QoS support in optical burst switching networks", Proc. SPIE 6021, Optical Transmission, Switching, and Subsystems III, 60210X (8 December 2005); https://doi.org/10.1117/12.634818

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