基于移动互联网的QoS分级自适应策略研究  

Research of QoS hierarchical adaptive tactic based on mobile Internet

作　　者：薛建生[1] 王光兴[2] 

机构地区：[1]辽宁大学信息科学与技术学院,沈阳110036 [2]东北大学网络与通信中心,沈阳110006

出　　处：《计算机应用》2007年第11期2656-2658,2668,共4页journal of Computer Applications

基　　金：国家863计划项目(2003AA712032)

摘　　要：提出在网络融合时基于实时应急管理的QoS分级自适应策略,用分级映射表的方法建立了移动网与互联网QoS映射的关系,并提出了多业务聚合流的QoS级别选择算法:用接入互联网的网关作为自适应QoS调节的决策节点,由网关监测到的网络负载变化,根据业务流对QoS作出及时调节,使决策更加及时。仿真模拟表明,该策略解决了移动接入网与Internet提供业务的QoS匹配映射问题,可以使传输时延减少至少20%,并能抑制用户盲目扩大自己的需求,避免了用户恶意攻击加重网络负担。The QoS hierarchical adaptive tactic based on real-time emergent management was proposed, using the method of hierarchical mapping table to establish the QoS mapping relationship between mobile network and Internet. And the selecting algorithm on QoS of multi-operation and aggregation stream was put forward as well, using the gateway linked to Internet as the decision-making node of adaptive QoS modulating. The gateway supervised the change of network load. According to the operation stream QoS was modulated timely which made decision timelier. The simulation results show that the tactic solves the problem of the match-mapping between mobile network and operation QoS which Internet provides, reduces the transportation delay over 20%, and restrains the users from enlarging their needs blindly and avoids the aggravation of the network burden caused by the users attack viciously.

关 键 词：网络融合 服务质量管理 自适应 分级映射 

分 类 号：TP393.07[自动化与计算机技术—计算机应用技术]