有限反馈MISO-OFDM 系统中基于误码率的波束成形 - 电子与信息学报.PDFVIP

See discussions, stats, and author profiles for this publication at: /publication/4308914 BER Criterion for Transmit Beamforming in MISO-OFDM with Limited Feedback Conference Paper · anuary 2008 DOI: 10.1109/FGCN.2007.79 · Source: IEEE Xplore CITATIONS READS 0 36 3 authors, including: Gang Wu University of Electronic Science and Technology of China 129 PUBLICATIONS 73 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: 5G Wireless Access Technologies View project Low latency high reliable communications for 5G vehicular network View project All content following this page was uploaded by Gang Wu on 10 uly 2015. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately. 第 31 卷第 3 期 电 子 与 信 息 学 报 Vol.31No.3 2009 年 3 月 Journal of Electronics Information Technology Mar.2009 有限反馈MISO-OFDM 系统中基于误码率的波束成形 张 雷 武 刚 李少谦 (电子科技大学通信抗干扰技术国家级重点实验室 成都 610054) 摘 要：该文提出了一种在有限反馈条件下多入单出–正交频分复用(MISO-OFDM)系统中基于误码率的波束成形 方案。将 OFDM 符号的所有子载波分成若干簇，从码本中选择能够最小化该簇每个子载波的平均误码率的码字， 作为该簇的波束成形向量。此方案既能降低反馈量，又能取得较低误码率。同时，为避免所提方案中探求最优解时 的穷尽有哪些信誉好的足球投注网站，还基于簇内不同子载波信道频响之间的相关性提出了一种简化的次优算法。仿真结果表明，在典型参 数设置下，所提方案能够以较低计算复杂度取得比其他已有方案更好的误码率性能。 关键词：多入单出–正交频分复用；有限反馈；波束成形；误码率 中图分类号：TN92 文献标识码： A 文章编号：1009-5896(2009)02-0752-04 BER Based Transmit Beamforming for MISO-OFDM with Limited Feedback