一种新的QoS感知的Ad Hoc网络多径DYMO路由协议  

Novel QoS-aware Multipath DYMO Routing Protocol in Mobile Ad Hoc Networks

作　　者：韩冰青[1,2] 陈伟[1] 张宏[2] 

机构地区：[1]南京审计学院信息科学学院,南京210029 [2]南京理工大学计算机学院,南京210094

出　　处：《计算机科学》2010年第3期79-82,120,共5页Computer Science

基　　金：国家自然科学基金资助项目(编号:70701018);江苏省自然科学基金项目(BK2007593;07KJB520052)资助

摘　　要：DYMO是Ad Hoc网络中一种动态的按需路由协议,本质上属于单径路由协议,而多径路由能更好地支持QoS。首先分析了DYMO协议的优点及存在的问题,在此基础上将DYMO和服务质量QoS及多径路由结合起来,提出一种新的QoS感知的多径DYMO路由协议QA-DYMO,利用多条链路不相交路径来发送数据,并提出一种QoS感知的路由算法。该协议能够适应网络的动态变化和较好地支持QoS。仿真结果表明,该协议要优于其他相关的协议。DYMO is a dynamic on-demand routing protocol in mobile ad hoc networks, which is a singlcpath routing protocol. But multi-path routing can support QoS better than single-path routing. Firstly, the advantages and problems of DYMO protocol were analyzed. Then a novel QoS-aware multi-path DYMO routing protocol（QA-DYMO） was proposed to provide QoS and multi path routing which establishes and utilizes multiple routes of link-disjoint paths to send data packets concurrently. Finally, a QoS-aware routing algorithm was proposed. QA-DYMO can adapt to the dynamic changes of the network and support QoS better. The simulation results show that the proposed protocol outperforms other pertinent protocols.

关 键 词：Ad HOC网络 DYMO 多径路由 服务质量 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]