多用户MISO系统下行链路的自适应用户选择算法

邢蕊; 刘琚; 许宏吉

doi:10.3724/SP.J.1146.2007.00790

多用户MISO系统下行链路的自适应用户选择算法

doi: 10.3724/SP.J.1146.2007.00790

邢蕊^{①② 刘琚,},
刘琚,
许宏吉

基金项目:

国家自然科学基金 (60572105)，移动通信国家重点实验室开放基金(W200802)，教育部新世纪优秀人才支持计划(NCET-05-0582)和ISN国家重点实验室开放基金项目资助课题

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出版历程
- 收稿日期: 2007-05-24
- 修回日期: 2008-04-14
- 刊出日期: 2008-11-19

An Adaptive User Selection Algorithm for Multiuser MISO Downlink Systems

Xing Rui^{①② 刘琚
,},
Liu Ju,
Xu Hong-Ji

摘要

摘要: 针对多用户多输入单输出(MISO)系统中的用户选择问题，该文基于多用户系统的容量公式提出一种低复杂度的自适应用户选择算法，使选择的用户数随当前的信道状态自适应变化以最大化所有用户的和速率。仿真结果表明，该算法具有接近最优的性能。在此基础上结合比例公平调度对算法进行改进以保证系统中用户服务的公平性。
- 多用户MISO系统 /
- 用户选择 /
- 自适应 /
- 比例公平调度
Abstract: For multiuser MISO downlink systems, an efficient user selection algorithm aiming to maximize the sum rate capacity is proposed in this paper. The number of selected users can change adaptively according to current channel condition. It achieves near optimal performance while with low computational complexity. Through simulation results, the excellent performance of the proposed algorithm is shown. Based on this method, a fair scheduling scheme is further given to ensure fairness to all users in the system.
- M /
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