OFDM系统中采用自适应天线阵列的下行分组调度算法研究和性能比较

OFDM系统中采用自适应天线阵列的下行分组调度算法研究和性能比较

内容简介：基于OFDM下行系统,提出并比较了自适应天线阵列和分组调度算法结合的三种方式:(1)分组调度选择用户,自适应天线服务用户;(2)自适应天线参与选择用户,并且服务用户;(3)空分方式选择用户,自适应天线服务用户.仿真结果显示自适应天线阵列可以明显提高小区吞吐率等指标,并且(2)和(3)的性能优于(1).

Abstract：Three schemes of combination of packet scheduling (PS) and adaptive antenna arrays (AAA) for OFDM systems are proposed and compared in this paper. They are: (1) PS selects user(s), AAA serves it/them; (2) PS and AAA select user(s), AAA serves it/them; (3) AAA selects user(s), AAA serves it/them. From simulation results, AAA can increase the system performance compared with single antenna transmission. And (2) and (3) are better than (1).

作者：张金文, 王文博,

关键词：OFDM, 分组调度, 自适应天线阵列,