全IP移动网络中的动态资源预留机制与QoS研究

全IP移动网络中的QoS是最近的研究热点之一,其中资源预留协议(Resource ReserVation Protocol,RSVP)是一个关键技术。为了保证切换时的QoS,需要进行资源预留。针对RSVP不适应移动环境的缺点,文中在全IP移动网络的接入网的微移动域中,提出一种动态资源预留的QoS解决方案,实现微移动协议和RSVP协议之间的互操作。当有多个移动主机需要进行预留时,需要对它们进行优先级排序。文中提出了一种在全IP移动网络中基于信令预测优先级排队的动态排序算法,以有效地对多个移动主机进行资源预留。仿真结果表明文中提出的算法的有效性。

Dynamic Resource Reservation and QoS in All-IP Mobile Network

QoS in all-IP mobile network is one of the hottest topics recently,while RSVP protocol is a key technology.It is necessary to reserve resource to guarantee QoS during handoff.As RSVP is not applicable in mobile environment,an in-advance dynamic resource reservation mechanism is introduced,which realizes the co-operation of micro-mobility protocols and RSVP.Priority ordering is important when many mobile hosts need to reserve resource.A dynamic ordering algorithm is presented based on signal prediction priority queuing(SPPQ) to efficiently reserve resource for many mobile hosts.Simulation result shows that the presented algorithm is effective.