一种用于MIMO-OFDMA系统的调度和资源分配算法  

A Scheduling and Resource Allocation Algorithm for MIMO-OFDMA System

作　　者：高有军[1] 徐海博[1] 田辉[1] 张平[1] 

机构地区：[1]泛网无线通信教育部重点实验室北京邮电大学无线新技术研究所,北京100876

出　　处：《电子与信息学报》2008年第8期1783-1786,共4页Journal of Electronics & Information Technology

基　　金：国家"863计划"(2006AA01Z283);国家自然科学基金(60632030)资助课题

摘　　要：该文提出了一种用于MIMO-OFDMA系统下行链路的调度和资源分配算法,该方法能够优化利用空时频三维资源,为不同类业务提供QoS保证。该算法不仅结合了先进的物理层技术,同时从媒体接入控制(MAC)层考虑了业务特性、QoS需求以及用户公平性等因素对资源进行分配。仿真结果表明,该算法在保证多业务传输质量的同时提高系统吞吐量。In this paper, a novel QoS-guarantee efficient scheduling and resource allocation algorithm for heterogeneous traffics in the downlink of MIMO-OFDMA system is proposed, which sufficiently exploits the space, time, frequency resource to provide QoS-guarantee. The algorithm takes into consideration not only the advanced physical techniques but also the service characteristics, QoS requirements and fairness for users observed in the medium access control （MAC） layer. Simulation results show it can significantly improve the system throughput performance while guaranteeing efficient transmission for heterogeneous traffics.

关 键 词：OFDMA MIMO 调度 资源分配 

分 类 号：TN929.5[电子电信—通信与信息系统]