基于Ad Hoc网络QoS信令机制研究  

QoS Issues Reserch Based on Mobile Ad Hoc Network

作　　者：沈敏洁[1] 顾海军[1] 

机构地区：[1]吉林大学通信工程学院,长春130012

出　　处：《吉林大学学报（信息科学版）》2006年第5期488-494,共7页Journal of Jilin University（Information Science Edition）

摘　　要：针对移动Ad Hoc网络中移动节点的自由移动和拓扑结构的动态变化所造成的已经建立的QoS(Qualityof Service)路径断开致使通信中断、时延、抖动等问题,对可支持Ad Hoc网络的QoS信令机制进行深入的探讨,结合Ad Hoc网络拓扑结构动态改变、传输带宽有限以及能量受限等问题,讨论了现存计算机网络综合服务和区分服务应用于Ad Hoc网络的优劣,提出了Ad Hoc网络QoS信令设计需要考虑的问题。研究表明:MRSVP(Mob ile Resource ReSerVation Protocol)和DRSVP(Dynam i Resource ReSerVation Protocol)较RSVP(Resource ReSerVation Protocol)在协议功能上有很大的增强;而FQMM(F lexib le Quality of Service Model forMob ile Ad Hoc Networks)则结合了IntServ和D ifServ的优点;三者对提高Ad Hoc网络的QoS,均起到很大的作用。Make an in-depth study of some problems in Mobile Ad Hoc networks such as communication failure, delay, jitter, etc, due to break of QoS （ Quality of Service） path caused by free movement of mobile node and dynamic change in topology, also take a depth discussion on QoS ~,;ignaling mechanism that enable to support ad hoc networks. Then it discussed the advantage and disadvantage of existing computer network integrated services and differentiated service used in ad hoc networks based on problems such as dynamic change in topology of ad hoc networks, transmission bandwidth and energy is limited, etc. We think that the design of QoS signaling of ad hoc network need to consider. Research shows that function of protocol with MRSVP （ Mobile Resource ReSerVation Protocol） and DRSVP （Dynami Resource ReSerVation Protocol） have had more greatly enhanced than RSVP （ Resource ReSerVation Protocol）, and FQMM （ Flexible Quality of Service Model for Mobile Ad Hoc Networks） combines the advantages IntServ and DifServ, all of them has played a significant role on improving the QoS of networks.

关 键 词：AD HOC网络 QOS 信令机制 

分 类 号：TN915[电子电信—通信与信息系统] TP391.41[电子电信—信息与通信工程]