【作者】 雷小林；

【导师】 赵力强；

【作者基本信息】 西安电子科技大学 ， 通信与信息系统， 2010， 硕士

【摘要】 本文在对无线资源管理发展现状研究的基础上,针对无线资源管理技术的发展需求,对无线资源分配算法进行了研究。基于效用函数与博弈论,对WiMAX OFDMA系统中的无线资源分配算法进行了优化。本文首先系统地介绍了OFDMA原理与系统模型,并对WiMAX OFDMA系统中的无线资源分配机制进行了讨论。在现有的算法的基础,结合微观经济学的效用函数与博弈论的理论知识,研究了两种优化算法。两种优化算法在WiMAX上行链路请求-准许调度机制基础上,分别结合效用函数与博弈论的特点,在简单的接纳控制后,合理分配无线资源,使网络总效用最大化。最后,通过OPNET与MATLAB仿真工具对两种算法的性能进行了仿真,包括吞吐量、时延与公平性方面的比较验证,仿真结果表明:不但提高了系统吞吐量,降低了时延,而且用户数据流的公平性也得到了保证。更多还原

【Abstract】 Based on the research of the present development and the demand of radio resource management, the allocation algorithm in radio resource management is researched. Based on the utility function and game theory, two improved algorithm are researched in the thesis.This thesis first introduces the OFDMA system theory and system model, and discusses the wireless resource allocation mechanism in WiMAX OFDMA system. Then on the basis of the existing algorithms, combined with the utility function and game theory of microeconomics, two improved algorithms are researched. Through WiMAX request-grant scheduling mechanism and a simple admission control, they maximize the total system utility, based on the combination of QoS mechanisms and utility function and game theory.Finally, this thesis introduces a simulation by OPNET and MATLAB, and analyses the performance of the researched algorithms, including throughput, delay and fair comparison. The result of simulation show that the algorithms can improve system throughput, reduced latency, and the fairness of the user data stream has also been assurance.更多还原