基于Ad Hoc网络QoS信令机制研究

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。

QoS Issues Reserch Based on Mobile Ad Hoc Network

Make an in-depth study of some problems in Mobile Ad Hoc networks such as commu nication failure,delay,jitter,etc,due to break of QoS(Quality of Service) pat h caused by free movement of mobile node and dynamic change in topology,also ta ke a depth discussion on QoS signaling mechanism that enable to support ad hoc n etworks.Then it discussed the advantage and disadvantage of existing computer n etwork integrated services and differentiated service used in ad hoc networks ba sed on problems such as dynamic change in topology of ad hoc networks,transmissi on bandwidth and energy is limited,etc.We think that the design of QoS signalin g of ad hoc network need to consider.Research shows that function of protocol wi th MRSVP(Mobile Resource ReSerVation Protocol) and DRSVP(Dynami Resource ReSe rVation Protocol) have had more greatly enhanced than RSVP(Resource ReSerVatio n Protocol),and FQMM(Flexible Quality of Service Model for Mobile Ad Hoc Networ ks) combines the advantages IntServ and DifServ,all of them has played a signif icant role on improving the QoS of networks.