A new bursty assigned traffic model and performance analysis in optical burst switching

Wenfang Yu; Minghao Li; Chunhan Chen; Zhang Yu

doi:10.1117/12.743283

19 November 2007 A new bursty assigned traffic model and performance analysis in optical burst switching

Wenfang Yu, Minghao Li, Chunhan Chen, Zhang Yu

Proceedings Volume 6783, Optical Transmission, Switching, and Subsystems V; 67830Z (2007) https://doi.org/10.1117/12.743283
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

Abstract

In OBS network, one key factor is implementing a switching fabric to achieve low bursts loss rate as low as possible. Another key factor in OBS network is scheduling bursts after switch fabric to an output port to achieve best utilizing bandwidth. Until now the performance of switch fabric and scheduling algorithm is analyzed with a uniform assigned traffic so called in this paper. The uniform assigned traffic is meant that the input traffic go to every output port with a same probability of 1/N independently. Unfortunately, this uniform assigned traffic may not the most suitable way to present the real world traffic. To deal with this problem, we present a new bursty assigned traffic model for analysis and performance evaluation of OBS network. Like a legacy bursty traffic the bursty assigned traffic is divided to two cycle: bursty cycle and nonbursty cycle. The input traffic is directed to an output port with a probability larger than 1/N in bursty cycle and is directed to an output port with a probability less than 1/N or none in nonbursty cycle. Then making use of the definition the bursts loss ratio of switch fabric and the LAUC-VF scheduling algorithm under uniform assigned and bursty assigned traffic is presented and compared in the paper.

Citation Download Citation

Wenfang Yu, Minghao Li, Chunhan Chen, and Zhang Yu "A new bursty assigned traffic model and performance analysis in optical burst switching", Proc. SPIE 6783, Optical Transmission, Switching, and Subsystems V, 67830Z (19 November 2007); https://doi.org/10.1117/12.743283

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