摘要：

中高速传感器网络中不同业务对QoS有不同的要求。针对该情况，引入区分服务的思想，提出一种适合混合业务的多元参数自适应跨层调度算法。该算法根据不同的业务动态调整时延补偿因子和吞吐量补偿因子，使实时业务能满足时延较小的要求，非实时业务能满足吞吐量较大的要求。仿真结果表明，该调度算法可以灵活地在系统效率和用户服务质量满意度之间取得折中，保证不同类型业务用户间的公平性。

关键词: 区分服务, 多元参数, 补偿因子, 中高速传感器网络

Abstract:

QoS requirements are different in different services in middle-and-high-rate sensor networks. Aiming at the circumstance, this paper proposes a multi-parameter self-adaptive cross-layer scheduling algorithm based on Differentiated Services(DiffServ). By dynamically adjusting values of the two parameters of delay compensatory factor and throughput compensatory factor, it can meet the demands of smaller delay in real-time services and larger throughput in non-real-time services. Simulation results show that the algorithm can achieve compromise between system efficiency and users’ QoS satisfaction flexibly, and guarantee fairness among different users.

Key words: Differentiated Services(DiffServ), multi-parameter, compensatory factor, middle-and-high-rate sensor network

中图分类号: 

• TP301.6