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接入网MAC层QoS系统的多业务令牌桶流量整形算法 被引量:4

Multi-service Token Bucket Algorithm of MAC QoS System in Access Network
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摘要 以HFC网络核心设备双向CM(Cable Modem)为研究背景,首先对目前的流量整形算法进行了分析,在HFC网络QoS系统需求的基础之上,提出了一种动态支持多业务整形的令牌桶算法。以美国有线电视实验室的测试用例仿真分析了队列长度对丢包率以及延时的影响。通过性能分析可以看出,该算法满足了多种应用对延时和丢包率的要求,很好地调整了数据的突发速率,有效地进行了流量整形控制。 To adjust the traffic burst rate and support dynamic service flows,a multi-service Token Bucket Algorithm was proposed to Quality of Service architecture in Cable Modem of HFC access network,based on a token assignment module between token generator and bucket, and polling policy. The Acceptance Test Plan, defined by Cable Television Laboratories,was used to analyse the impact of queue depth on the delay and jitter and comparison output rate with input rate, the result shows that this algorithm meets the application requirements and controls the rate shaping effectively.
出处 《计算机科学》 CSCD 北大核心 2009年第1期68-70,共3页 Computer Science
基金 国家"八六三"高技术研究发展计划基金项目(2006AA09Z115) 北京市科技产业化项目"SOC设计服务及重点产品关键技术研究"课题(编号D0306008041021)资助
关键词 服务质量 流量整形 令牌桶 多业务 接入网 计算机网络 算法 MAC QoS Quality of service, Rate shaping, Token bucket, Multi-service
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