A novel link architecture for optical burst switched networks

Chi Yuan; Zhengbin Li; Anshi Xu

doi:10.1117/12.803053

19 November 2008 A novel link architecture for optical burst switched networks

Chi Yuan, Zhengbin Li, Anshi Xu

Proceedings Volume 7137, Network Architectures, Management, and Applications VI; 71372V (2008) https://doi.org/10.1117/12.803053
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

Abstract

Optical burst switching (OBS) is proposed as a high speed, flexible and transparent switching technology. It facilitates the efficient integration of both IP and WDM. And it provides statistical multiplexing gains and avoids long end to end setup time of traditional virtual circuit configuration. However, under the current and foreseeable limitations of optical technology, performance of OBS networks is mainly hampered at the network nodes by resource contention. Due to the fact that the random access memory is not available in the optical domain, there exists a real possibility that bursts may contend with one another at a switching node. Therefore, many contention resolutions are proposed, such as fiber delay lines, wavelength conversion, and deflection routing, etc. These resolutions are focus on the node design. They are increase the complexity of the node. But they can not always take some significant effect and make notable gains in cost-efficiency. In this paper, unlike these schemes are focus on the node design, we proposed a novel link architecture named dual-fiber-link (DFL) for OBS networks. We also proposed a relative media access control protocol. We have developed some scenarios to evaluate this architecture. Simulation results show that the proposed link can decrease packet drop probability in terms of orders of magnitude in OBS networks without optical buffers and wavelength conversions.

Citation Download Citation

Chi Yuan, Zhengbin Li, and Anshi Xu "A novel link architecture for optical burst switched networks", Proc. SPIE 7137, Network Architectures, Management, and Applications VI, 71372V (19 November 2008); https://doi.org/10.1117/12.803053

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