全IP移动网络中基于信令预测优先级排队的动态资源预留排序

Dynamic Resource Reservation Ordering Based on Signal Prediction Priority Queuing in All-IP Mobile Networks

无线移动网络中的QoS是最近的研究热点之一,其中资源预留协议(ResourceReserVationProtocol,RSVP)是一个关键技术.为了提供更多的服务,蜂窝在变小,这样切换更频繁了.因此为了保证切换时的QoS,需要进行资源预留.当有多个移动主机需要进行预留时,就需要对它们进行优先级排序.本文提出一种在全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.仿真结果表明本文提出的算法既保证了快速切换,又实现了资源的有效预留,有效地分配了有限的资源.

QoS in wireless mobile network is one of the hot topics recently, in which RSVP protocol is a key technique.The cell is becoming smaller to provide more service, making handoff more frequent. So it is necessary to reserve resource to guarantee QoS during the handoff. Moreover, the priority ordering is important when many mobile hosts need to reserve resource. This paper presents a dynamic ordering algorithm based on signal prediction priority queuing （SPPQ） to efficiently reserve resource for many mobile hosts. Simulation result shows that the proposed algorithm not only guarantees fast handoff but also accomplishes efficient resource reservation. The limited resource is assigned more effectively.