中继OFDMA系统混合业务的分步跨层调度算法  

Step-by-step cross-layer scheduling algorithm for mixed services in relay OFDMA system

作　　者：韩智[1] 郭爱煌[1,2] 

机构地区：[1]同济大学电子与信息工程学院,上海201804 [2]毫米波国家重点实验室,南京210096

出　　处：《计算机应用研究》2011年第7期2667-2669,共3页Application Research of Computers

基　　金：毫米波国家重点实验室开放课题(K201009)

摘　　要：由于实时和非实时两类业务具有不同的QoS要求,因此需要设计一种混合分组调度算法为两类业务用户提供QoS保证。在分析传统的PF与M-LWDF算法的基础上,根据已有的信道条件和不同的业务需求,使用MATLAB搭建系统仿真平台,设计了分步的跨层调度策略。仿真结果表明,该算法在满足公平性要求的情况下,不但能保证实时业务的时延需要,而且能够获得很好的吞吐量。In order to guarantee the QoS for both the real-time and non-real-time services,this paper proposed a kind of packet scheduling algorithm to deal with the mixed services.After studying the conventional PF algorithm and M-LWDF algorithm,modeled the simulator in OFDMA system with MATLAB and took channel condition and different services into account.Then designed the cross-layer scheduling algorithm which was divided into two steps.Simulation results show that in the context of satisfying the fairness criterion,this algorithm can not only guarantee the delay requirements of real-time service but also obtain good system throughput.

关 键 词：分组调度 混合业务 服务质量 正交频分多址接入 中继 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]