Design and analysis of optical buffers in GMPLS-based WDM optical packet-switched network

Xiaohua Ma; Geng-Sheng Kuo

doi:10.1117/12.576945

11 February 2005 Design and analysis of optical buffers in GMPLS-based WDM optical packet-switched network

Xiaohua Ma, Geng-Sheng Kuo

Proceedings Volume 5625, Optical Transmission, Switching, and Subsystems II; (2005) https://doi.org/10.1117/12.576945
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

This paper is devoted to dimensioning and optimizing optical buffers for asynchronous, variable length packets in GMPLS-based WDM optical packet-switched networks, which aims to lower network congestion and increase utilization efficiency of optical buffers. In GMPLS-based WDM optical packet-switched networks, the critical issue is how to improve network flexibility and limit network congestion. Comparing to optical buffers with a single operating wavelength, WDM optical buffers in an optical packet switch (OPS) have demonstrated superior performance in solving congestion, which perform buffering by exploiting both time and wavelength dimensions. However, the realistic buffering capacity of optical fiber-delay-line (FDLs) buffers is currently limited. Hence, the algorithm for wavelength sharing and design of the optimal value of the basic time unit of the FDLs in WDM optical buffers are indispensable to shorten FDLs and put OPS into practice. In this paper, the algorithm for wavelength sharing among multiple connections is proposed, which aims to minimize congestion and shorten the queue length. And, in this scenario, the optimal value of the basic time unit of the FDLs is designed. Finally, the proposed algorithm is compared with others in terms of performance.

Citation Download Citation

Xiaohua Ma and Geng-Sheng Kuo "Design and analysis of optical buffers in GMPLS-based WDM optical packet-switched network", Proc. SPIE 5625, Optical Transmission, Switching, and Subsystems II, (11 February 2005); https://doi.org/10.1117/12.576945

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