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Performance analysis of optical burst switching under bursty traffic
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作者 陈春汉 曹明翠 罗志详 《Chinese Optics Letters》 SCIE EI CAS CSCD 2004年第1期21-23,共3页
The performance of the algorithm of the data channel scheduling algorithm of latest available unscheduled channel with void filling (LAUC-VF) under bursty traffic is presented firstly. A bursty traffic model for optic... The performance of the algorithm of the data channel scheduling algorithm of latest available unscheduled channel with void filling (LAUC-VF) under bursty traffic is presented firstly. A bursty traffic model for optical burst switch performance simulation is also introduced. 展开更多
关键词 Performance analysis of optical burst switching under bursty traffic OBS LINE FDL LENGTH
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Design and Analysis of a Multiscale Active Queue Management Scheme
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作者 纪其进 董永强 《Journal of Computer Science & Technology》 SCIE EI CSCD 2006年第6期1022-1030,共9页
Since Internet is dominated by TCP-based applications, active queue management (AQM) is considered as an effective way for congestion control. However, most AQM schemes suffer obvious performance degradation with dy... Since Internet is dominated by TCP-based applications, active queue management (AQM) is considered as an effective way for congestion control. However, most AQM schemes suffer obvious performance degradation with dynamic traffic. Extensive measurements found that Internet traffic is extremely bursty and possibly self-similar. We propose in this paper a new AQM scheme called multiscale controller (MSC) based on the understanding of traffic burstiness in multiple time scale. Different from most of other AQM schemes, MSC combines rate-based and queue-based control in two time scales. While the rate-based dropping on burst level (large time scales) determines the packet drop aggressiveness and is responsible for low and stable queuing delay, good robustness and responsiveness, the queue-based modulation of the packet drop probability on packet level (small time scales) will bring low loss and high throughput. Stability analysis is performed based on a fluid-flow model of the TCP/MSC congestion control system and simulation results show that MSC outperforms many of the current AQM schemes. 展开更多
关键词 active queue management multiscale traffic burstiness fluid-flow model stability analysis
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