基于3GPP2框架的无线移动网络的RSVP扩展研究

本文讨论了面向固定网络设计的RSVP协议应用于无线移动网络需要解决的问题,并针对3GPP2框架下的无线移动网络提出了一种RSVP扩展方案.该方案采用隧道预留技术建立端-端主动预留,为数据连接提供服务质量保证;采用移动预测和被动预留技术在移动节点可能进入的蜂窝内提前预留无线资源,提高切换成功的概率;通过采用主动切换技术减小预留路径调整的时间,进一步提高通信的连续性.

Research of RSVP Extension in Wireless Mobile Networks Based on 3GPP2 Framework

This paper discusses the issues needed to be resolved when faced network-oriented RSVP is used in wireless mobile networks, and puts forward a scheme to extend existing RSVP in 3GPP2 framework-based wireless mobile networks. There are three main extensions: the first uses RSVP over IP tunnels to establish end-to-end active reservation, which will provide data flows with guaranteed QoS. The second uses mobility predication and passive reservation to make advanced reservation of wireless resource in a set of cells where mobile node will enter in the near future, and this extension can increase the probability of successfixl handoff. The third employs active handoff to reduce the time used for adjustment of reserved paths, and further improves the probability of seamless commumcatron.