| 一种自适应的高精度可用带宽测量算法 |
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| 引用本文： | 赵卫虎,孟相如,麻海圆,庄绪春.一种自适应的高精度可用带宽测量算法[J].计算机测量与控制,2011,19(6). |
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| 作者姓名： | 赵卫虎 孟相如 麻海圆 庄绪春 |
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| 作者单位： | 空军工程大学电讯工程学院,陕西西安,710077 |
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| 基金项目： | 陕西省自然科学基金资助项目(SJ08F14,2009JQ8008) |
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| 摘 要： | 针对现有可用带宽测量技术在突发背景流及多跳链路下测量精度较低的问题,提出了一种自适应的高精度可用带宽测量算法FPU-ABM(Five-Packet-Unit for Available Bandwidth Measurement);该算法采用五包结构构成探测单元,结合TTL值设置,分别测量瓶颈链路前后的探测包间隔,提高了在多跳链路下带宽测量精度;算法根据反馈包的间隔自适应地调整探测速率,加快了测量速度且减小了探测流对网络的入侵度,增强了算法的适应性;仿真表明,在多跳链路下TFP-ABM算法的测量精度可达到10%以内,相比现有算法,TFP-ABM响应速度快、测量精度高、适应性好。
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| 关 键 词： | 可用带宽 非液体流模型 多跳链路 背景流量 测量精度 |
An Adaptive Method of Accurate Available Bandwidth Measurement |
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| Zhao Weihu,Meng Xiangru,Ma Haiyuan,Zhuang Xuchun.An Adaptive Method of Accurate Available Bandwidth Measurement[J].Computer Measurement & Control,2011,19(6). |
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| Authors: | Zhao Weihu Meng Xiangru Ma Haiyuan Zhuang Xuchun |
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| Affiliation: | Zhao Weihu,Meng Xiangru,Ma Haiyuan,Zhuang Xuchun(Telecommunication Engineering Institute,Air Force Engineering University,Xi'an 710077,China) |
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| Abstract: | Most of the available bandwidth measurement technologies can not get high accuracy in the context of a multi-hop path and bursty cross traffic arrival.This paper proposed a novel method of adaptive and high accuracy available bandwidth measurement called FPUABM(Five-Packet-Unit for Available Bandwidth Measurement).Combining with setting the value of TTL,the five-packet-unit measures the gaps of probe packets before and after bottleneck link respectively to improve measurement accuracy in multi-hop path.The ... |
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| Keywords: | available bandwidth non-fluid model multi-hop cross traffic measurement accuracy |
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