移动无线因特网中的一种基于QoS的切换支持机制

A QoS-based Handoff Supporting Mechanism in Mobile Wireless Internet

研究了移动无线因特网中基于QoS的切换支持机制,该机制采用移动台辅助切换策略和基于底层信息的动态切换准则,软、硬切换有机结合,同时辅以重路由、频繁切换QoS控制与缓存等技术,为用户QoS保证提供支持。原型系统实现表明,该机制是可行和有效的。

In this paper, a QoS-based handoff supporting mechanism in mobile wireless Internet is disussed.In the proposed mechanism,the mobile assisted handoff strategy is adopted,the dynamic handoff criteria is formulated based on the underlying information,and the soft and hard hand handoffs are used alternatively and seamlessly,with rerouting,QoS control for frequent handoffs and caching utilized,providing QoS support sufficiently.Prototype system implementations have shown that the proposed mechanism is both feasible and effective.