Analysis of the burst loss rate in OBS rings with depth limited optical buffers

Article type: Research Article

Authors: Xu, Huadong | Fan, Ge

Affiliations: The State Key Laboratory on Fiber-Optic Local Area Networks and Advanced Optical Communication Systems, Shanghai Jiaotong University, Shanghai 200240, China

Note: [] Corresponding author: H. Xu, The State Key Laboratory on Fiber-Optic Local Area Networks and Advanced Optical Communication Systems, Shanghai Jiaotong University, 800 Dongchuan road, Minhang district, Shanghai 200240, China. Tel.: +86 021 34262597; Fax: +86 021 34262597; E-mail: [email protected].

Abstract: Optical Burst Switching (OBS) is considered as the promised solution for next generation backbone networks, but the high burst loss rate caused by the burst contention is a great hindrance to the practical use. The authors proposed a new way to solve the burst contentions in OBS rings. As illustrated in the paper, basing the optical buffers with depth about the maximum Data Burst (DB) size and a proper wavelengths selection strategy for the local DBs the burst loss rate in an OBS ring can be decreased to a negligible level. So buffer insertion, the most successful method for asynchronous packet switching, can be adopted in OBS ring by an acceptable cost.

Keywords: Buffers, optical burst switching, optical fiber delay lines, optical switches

Journal: Journal of High Speed Networks, vol. 16, no. 4, pp. 341-351, 2007