Effect of ingress buffering on self-similarity of optical burst traffic

Rui Huang; Gergely Vid Zaruba

doi:10.1117/12.533525

1 October 2003 Effect of ingress buffering on self-similarity of optical burst traffic

Rui Huang, Gergely Vid Zaruba

Proceedings Volume 5285, OptiComm 2003: Optical Networking and Communications; (2003) https://doi.org/10.1117/12.533525
Event: OptiComm 2003: Optical Networking and Communications, 2003, Dallas, TX, United States

Abstract

Recently, optical burst switching and aggregated optical packet switching have gained significant exposure as possible future mechanisms for routing aggregated IP traffic over all-optical core networks. However, the limited buffering capacity in all-optical networks presents a major challenge, as current IP traffic displays strong self-similar properties. Reducing the burst loss rate of such long-range dependent traffic can be costly requiring a significant increase in either the network bandwidth or the buffer size of optical cross connects. In this paper, we revisit the possibility of using buffers to reduce self-similarity before the traffic is routed onto the all-optical core. The aim of this paper is to increase the understanding of the effect of packet/burst aggregation on the self-similarity measure of the traffic. In particular, we implement a simple burst assembly mechanism with two parameters, the maximum burst length L and the maximum burst delay d, so that incoming traffic is smoothed with a guaranteed delay bound. Unlike previous works, we simulate the burst assembler using more realistic input traffic sources, and analyze the results using both R/S plot and discrete wavelet analysis methods. Our detailed results show that buffering indeed reduces traffic self-similarity (an area of research controversy) when parameters L and d are set appropriately.

Citation Download Citation

Rui Huang and Gergely Vid Zaruba "Effect of ingress buffering on self-similarity of optical burst traffic", Proc. SPIE 5285, OptiComm 2003: Optical Networking and Communications, (1 October 2003); https://doi.org/10.1117/12.533525

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