预留期限可扩展的预先保留路由算法

AR routing algorithm for the extensible resource reservation duration

提出了一个预先保留扩展资源预留期限模型和计算不同QoS级别预先保留请求扩展失败率的方法.基于预先保留扩展资源预留期限模型,在链路代价函数中引入预先保留请求扩展失败率,提出资源预留期限可扩展的预先保留路由算法.此算法克服了现有的预先保留应用需要预先声明资源预留开始时间和期限的难题.仿真结果显示此路由模式增加了预先保留请求扩展成功率,具有更好的资源利用率,使得更多具有不可预见生命期限的预先保留应用成功地扩展了资源预留期限.

This paper proposes a model of the AR extensible resource reservation duration and a method for computing the AR request extension loss rate of different QoS levels. This algorithm overcomes the problem that the current AR application needs to declare its starting time and duration of resource reservation in advance. Based on the model of the AR extensible resource reservation duration, the AR request extension loss rate is introduced in the link cost function, and the AR routing protocol of the extensible resource reservation duration is presented. Simulation results show that this routing algorithm increases the success rate of the AR request extension, has a better resource use rate and makes more AR applications with an unpredictable lifetime successfully extend resource reservation duration.