TD-HSUPA无线分组调度算法研究

Research on Wireless Packet Scheduling Algorithm of TD-HSUPA

首先介绍了在TD-HSUPA系统中调度算法对无线资源管理的重要影响及NodeB调度的基本原理。然后分析了几种常用的无QoS保证的调度算法和两种保证多业务QoS的调度算法,并通过公平性、吞吐量等性能指标对它们进行分析比较。最后引入了经济学中的效用函数思想,分析了基于效用函数的调度算法,它能够结合相应业务的QoS要求,更加真实地反应用户的满意情况,为调度算法的改进提供依据,从而使网络能够承载更高的数据服务容量,增强网络建设的有效性。

Firstly, the importance of scheduling algorithm for the radio resource management and the basic principle of Node B scheduling in the TD-HSUPA system are introduced. And then, some commonly-used non-QoS guaranteed scheduling algorithms and two scheduling algorithms which have multi-service QoS guarantees are analyses and comparative analyzed through some performance indicators, such as fairness, throughput and so on. Finally, a introduction of the utility function in the economics is given, and the scheduling algorithm based on utility function is analyzed, which can combine the corresponding QoS requirements of business, and give more realistic response to the user＇s satisfaction. Therefore, the proposed algorithm can provide a basis for the improving of scheduling algorithm, so that the network can carry a higher capacity of data services, and the effectiveness of network construction can also be enhanced.