文章基本信息

标题：A NOVEL FUZZY-BASED ADAPTIVE TIMER BURST ASSEMBLY ALGORITHM FOR OPTICAL BURST SWITCHING NETWORKS
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作者：ABUBAKAR MUHAMMAD UMARU ; MUHAMMAD SHAFIE ABD LATIFF ; YAHAYA COULIBALY 等
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2014
卷号：67
期号：1
出版社：Journal of Theoretical and Applied
摘要：Optical Burst Switching (OBS) is envisioned as the intermediate candidate technology for the next generation all-optical switching networks. OBS has the capability to statistically multiplex data at the burst level and at the same time function effectively without the need for optical memory. OBS harnesses the Wavelength Division Multiplexing (WDM) capability of the optical fiber to transport large volume of data by aggregating different client packets into a larger packet known as a burst. Burst assembly that is the first process in OBS is the focus of this paper, and this is because of the crucial role burst assembly plays in the performance of a network. The performance of burst assembly affects the congestion and contention levels of the network which in turn affects the overall network performance in terms of delay and loss. In this paper, a new burst assembly algorithm that uses fuzzy logic to adjust the threshold of the timer-based burst assembly algorithm is proposed. The goal of the algorithm is to minimize loss and end-to-end delay. Furthermore, two sets of fuzzy rules have been used to investigate the effects of different fuzzy rules on the performance of the network. Through simulation, the new algorithm shows performance improvement over the conventional timer-based assembly algorithm.
关键词：Burst Assembly; Fuzzy Logic; Delay; Packet Loss Ratio; Optical Burst Switching