移动Internet中端到端QoS保证的准入及资源分配策略

目前对移动 Internet上服务质量 ( Qo S)的保证方法 ,大多没有考虑端到端 Qo S保证及准入与资源预留的结合 .文中提出了一种准入及资源预留策略 ,将应用服务分为三类 ,对其中两类服务同时考虑移动主机本地资源信息和移动范围内的资源信息 ,并改进资源预留协议 ( RSVP)来在相应 IP流路径上的所有网络节点进行准入控制和资源预留分配 ,从而达到移动 Internet上的端到端Qo S控制的目的 .仿真结果表明 ,该策略有效降低了服务的切换失败概率 ,保证了端到端 Qo S

Admission Control and Resource Reservation Strategy for End-to-End QoS Guarantee on Mobile Internet

Endtoend QoS and admission control combined with resource reservation has seldom been considered by a lot of QoS guarantee strategies on mobile Internet. This paper proposed an admission control and resource reservation strategy to guarantee endtoend QoS on mobile Internet. It classifies various applications into 3 classes, calculates both mobile host's local information and remote information for two classes of them, modifies RSVP reservation protocol and applies admission control and resource reservation in all nodes along IP flow path. The simulation results show that using this strategy can decrease services' handoff dropping probability and guarantee QoS.