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多用户MIMO-OFDM系统中基于迫零波束成型的自适应资源分配算法 被引量:2

Adaptive resource allocation algorithm for multiuser MIMO-OFDM systems with zero-forcing beamformer
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摘要 针对多用户环境下的多天线正交频分复用下行系统,提出了2种有效的基于迫零波束成型的自适应资源分配算法.所提算法在保证每个用户的速率要求的情况下,通过自适应的功率、子载波和比特分配,最小化系统的发送功率.仿真结果表明,提出的2种次优的分配算法在满足用户的速率要求下能达到很好的系统性能. Two effective allocation schemes are p beamforming power while optimal Through adaptive power, subacarrier and bit allocation, our MIMO-OFDM systems with zero-forcing objective is to minimize the total transmit satisfying the target data rates of all users. The numerical results show that the two proposed submethods can achieve good performance while satisfying the rate demand of users.
作者 舒锦 卫国
出处 《中国科学院研究生院学报》 CAS CSCD 北大核心 2009年第3期419-425,共7页 Journal of the Graduate School of the Chinese Academy of Sciences
基金 国家重点基础研究发展计划(973计划)项目(2007CB310602)资助
关键词 多天线正交频分复用 自适应资源分配 发送功率 MIMO-OFDM, adaptive resource allocation, transmit power
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参考文献7

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同被引文献34

  • 1李黎,朱光喜.多用户OSTBC-OFDM系统的自适应子载波分配研究[J].应用科学学报,2007,25(1):1-5. 被引量:1
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