| ATM SAR处理器发送数据业务的信元调度算法 |
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| 引用本文： | 涂晓东,李乐民.ATM SAR处理器发送数据业务的信元调度算法[J].通信学报,2000,21(7):1-8. |
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| 作者姓名： | 涂晓东 李乐民 |
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| 作者单位： | 电子科技大学,光纤通信国家重点实验室,四川,成都,610054 |
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| 基金项目： | 信息产业部电子科学研究院“九五”项目资金资助，深圳华为基金资助 |
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| 摘 要： | 叙述了ＡＴＭ ＳＡＲ（Ｓｅｇｍｅｎｔａｔｉｏｎ Ａｎｄ Ｒｅａｓｓｅｍｂｌｙ）处理器发送信元的机理，讨论了基于发送调度表的业务成形方式产生的信元时延抖动（Ｃｅｌｌ Ｄｅｌａｙ Ｖａｒｉａｔｉｏｎ，ＣＤＶ）以及信元时延抖动容限（Ｃｅｌｌ Ｄｅｌａｙ Ｖａｒｉａｔｉｏｎ Ｔｏｌｅｒａｎｃｅ，ＣＤＶＴ），推导了ＣＤＶＴ的计算公式，设计了使最小的信元调度算法ＮＶＳＴ（Ｎｅａｒ Ｖｉｒｔｕａｌ Ｓｄｅｎ Ｔ
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| 关 键 词： | 数据业务发送 信元调度算法 ATMSAR处理器 |
| 修稿时间： | 1998-12-25 |
The cell scheduling algorithm for ATM SAR processor transmitting data services |
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| TU Xiao-dong,LI Le-min.The cell scheduling algorithm for ATM SAR processor transmitting data services[J].Journal on Communications,2000,21(7):1-8. |
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| Authors: | TU Xiao-dong LI Le-min |
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| Abstract: | This paper presents the mechanism of ATM SAR(segmentation and reassemb ly)processor transmitting data,discusses the cell delay variation(CDV)and the ce l l delay variation tolerance(CDVT)caused by the traffic shaping,which is based on transmit schedule table(TST) The formula for computing CDVT is also deduced T he cell scheduling algorithm,NVST(near virtual send time)is designed,which makes t he CDVT minimal Then the performance of NVST is analyzed In order to satisfy t he fairness of services,FNVST(fair near virtual send time)algorithm is proposed S im ulation experiments show FNVST has fair characteristics Finally,the application of FNVST algorithm in ATM NIC device driver is discussed |
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| Keywords: | SAR processor transmit schedule table cell scheduling CDV CDVT NVST FNVST |
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