Performance Evaluation of Feedback Type WDM Optical Routers under Asynchronous and Variable Packet Length Self-Similar Traffic(Switching for Communications)
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概要
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In this paper, we investigate packet loss and system dimensioning of feedback (FB) type wavelength division multiplexing (WDM) optical routers under asynchronous and variable packet length self-similar traffic. We first study the packet loss performance for two different types of WDM optical routers under asynchronous and variable packet length self-similar traffic. Based on simulation results, we demonstrate that a 16×16FB type WDM optical router employing more than 4re-circulated ports without using void filling (VF) algorithm has better performance. We then present the system dimensioning issues of FB type WDM optical routers, by showing the performance of FB type WDM optical routers as a function of the number of re-circulated ports, buffer depth, re-circulation limit, basic delay unit in the fiber delay line optical buffers and traffic characteristics. The sensitivity of the mutual effects of the above parameters on packet loss is investigated in details. Based on our results, we conclude that the FB type WDM optical routers must be dimensioned with the appropriate number of re-circulated ports, re-circulation limits, buffer depth, and optimal basic delay unit in the fiber delay line optical buffers under relevant traffic characteristics to achieve high switching performance.
- 2005-03-01
著者
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Reddy Perati
Department Of Electrical Engineering And Graduate Institute Of Communication Engineering National Ta
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Wu Jingshown
Department Of Electrical Engineering And Graduate Institute Of Communication Engineering National Ta
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Tsao Hen
Department Of Electrical Engineering And Graduate Institute Of Communication Engineering National Ta
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Reddy Perati
Department Of Electrical Engineering And Graduate Institute Of Communication Engineering National Ta
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TSAI Meng
Department of Electrical Engineering and Graduate Institute of Communication Engineering, National T
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SHAO Shou
Department of Electrical Engineering and Graduate Institute of Communication Engineering, National T
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SREEDEVI Paruvelli
Department of Electrical Engineering and Graduate Institute of Communication Engineering, National T
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Wu Jingshown
Department Of Electrical Engineering And Graduate Institute Of Communication Engineering National Ta
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Tsai Meng
Department Of Electrical Engineering And Graduate Institute Of Communication Engineering National Ta
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Shao Shou
Department Of Electrical Engineering And Graduate Institute Of Communication Engineering National Ta
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Tsao Hen
Department Of Electrical Engineering And Graduate Institute Of Communication Engineering National Ta
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Sreedevi Paruvelli
Department Of Electrical Engineering And Graduate Institute Of Communication Engineering National Ta
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