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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

Research and comparison of packet scheduling algorithms deploying adaptive antenna arrays in OFDM systems
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摘要 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)。 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 (I).
出处 《电路与系统学报》 CSCD 北大核心 2009年第5期117-121,共5页 Journal of Circuits and Systems
关键词 OFDM 分组调度 自适应天线阵列 OFDM packet scheduling adaptive antenna arrays
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参考文献7

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