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Proceedings Paper

The QoS-aware head-drop mechanism for contentions resolution in optical burst switching networks
Author(s): Xiaolong Yang; Min Zhang; Hui Liu; Sheng Huang; Qianbin Chen
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Paper Abstract

Due to the network resources conflicting, optical burst switching (OBS) network would raise some contentions, which is often resolved by head-drop schemes since they are more simple and intuitional. However, the existing head-drop schemes have two inherent defects, i.e., pseudo-contention and excessive-drop. Besides, they seldom consider how to support QoS. In consequence of the shortcomings, this paper proposed the QoS-aware head-drop scheme, which can selectively discard the head part of contending burst or the entire burst according to the priority and the truncated burst relative length, i.e., the ratio to the original burst length. The simulation results show that it is able to overcome the mentioned shortcomings, and to provide QoS guarantee.

Paper Details

Date Published: 19 November 2007
PDF: 8 pages
Proc. SPIE 6783, Optical Transmission, Switching, and Subsystems V, 67831E (19 November 2007); doi: 10.1117/12.741712
Show Author Affiliations
Xiaolong Yang, Chongqing Univ. of Posts and Telecommunications (China)
Univ. of Electronic Science and Technology of China (China)
Min Zhang, Univ. of Electronic Science and Technology of China (China)
Hui Liu, Univ. of Electronic Science and Technology of China (China)
Sheng Huang, Chongqing Univ. of Posts and Telecommunications (China)
Qianbin Chen, Chongqing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 6783:
Optical Transmission, Switching, and Subsystems V
Dominique Chiaroni; Wanyi Gu; Ken-ichi Kitayama; Chang-Soo Park, Editor(s)

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