Design of Fault-Tolerant Node Architecture based on SCM in Optical Burst Switching Networks 


Vol. 30,  No. 8, pp. 514-524, Aug.  2005


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  Abstract

In optical burst switching(OBS) networks, the ingress edge router assembles packets in the same class queue into the appropriate size of burst. A burst control packet(BCP) is generated for channel reservation of corresponding data burst and sent earlier than the corresponding data burst with an offset time. Offset time is determined considering the number of hops from source to destination and the required quality of service(QoS). After offset time, the burst data is passed through the pre-configured optical switches without any O/E/O conversion. But a failure in OBS networks may lead to the loss of bursts until the ingress nodes receive the failure indication signal. This results in a significant degradation in QoS. Therefore, in this paper, we propose a fault-tolerant node architecture based on sub-carrier multiplexing to reduce the effects of failure in OBS networks. The Performance of the proposed fault-tolerant node architecture exhibits considerable improvement as compared with the previous ones.

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  Cite this article

[IEEE Style]

K. Song, K. Yoo, W. Yoo, H. Lee, Y. Kim, "Design of Fault-Tolerant Node Architecture based on SCM in Optical Burst Switching Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 8, pp. 514-524, 2005. DOI: .

[ACM Style]

Kyu-Yeop Song, Kyoung-Min Yoo, Wan Yoo, Hae-Joung Lee, and Young-Chon Kim. 2005. Design of Fault-Tolerant Node Architecture based on SCM in Optical Burst Switching Networks. The Journal of Korean Institute of Communications and Information Sciences, 30, 8, (2005), 514-524. DOI: .

[KICS Style]

Kyu-Yeop Song, Kyoung-Min Yoo, Wan Yoo, Hae-Joung Lee, Young-Chon Kim, "Design of Fault-Tolerant Node Architecture based on SCM in Optical Burst Switching Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 8, pp. 514-524, 8. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880