期刊文献+

MIMO系统中基于ZF/MMSE检测的自适应功率分配方案 被引量:3

Adaptive Power Allocation for ZF/MMSE Detected MIMO Systems
下载PDF
导出
摘要 本文研究了MIMO系统中的功率分配技术.针对基于ZF/MMSE检测的MIMO系统,提出了一种简单的自适应功率分配方案.该方案在不使用预编码技术对MIMO信道进行对角化的前提下,遵循最小化系统BER的准则,为发送数据流分配发射功率.与采用SVD预编码的功率分配方案相比,本文提出的方法减少了系统需要的反馈信息量.仿真表明该方法能够有效地提高系统的BER性能,而且基于MMSE检测的系统性能接近于采用SVD预编码的功率分配性能. This paper investigates the power allocation schemes for MIMO systems. An effective power allocation method for ZF/MMSE detected MIMO systems is then proposed. The method is designed to minimize the overall systems BER performance without pre-diagnalizing the MIMO channels using precoding. Compared with conventional power allocation schemes using SVD, the proposed method reduces the required feedback information. Simulation results show that this method effectively improves the BER performance. Moreover, the performance of this new method is also close to that of conventional precoded MIMO systems.
出处 《电子学报》 EI CAS CSCD 北大核心 2008年第10期1891-1896,共6页 Acta Electronica Sinica
基金 国家973重点基础研究发展规划(No.2007CB310603) 国家863高技术研究发展计划(No.2006AA01Z263)
关键词 MIMO 自适应功率分配 最小均方误差检测 最小化误码率 multiple input and multiple output(MIMO) adaptive power allocation minimum mean square error(MMSE) detection minimum bit error rate(BER)
  • 相关文献

参考文献9

  • 1M C Thomas, A T Joy. Elements of Information Theory [ M]. New York:Wiley & Sons, 1991.
  • 2G G Raleigh, J M Ciofti. Spatio-temporal coding for wireless communication [J].IEEE Transactions on Communications, 1998,46(3) :357 - 366.
  • 3C S Park, K B Lee. Transmit power allocation for BER performance improvement in multicarrier systems[J]. IEEE Transactions on Communications,2004,52( 10):1658- 1663.
  • 4E N Onggosanusi, A M Sayeed, B V Veen, Efficient signaling schemes for wideband space-time wireless channels using channel state information [J]. IEEE Transactions Vehicular Technology, 2003,52( 1 ) : 1 - 13.
  • 5F Ray,M Lamarca, G Vazquez. Robust power allocation algorithms for MIMO-OFDM systems with imperfect CSI [J]. IEEE Transactions Signal Processing, 2005,53(3) : 1070 - 1085.
  • 6Y Liu, Y Yang. W-function solution to MBER based power allocation for MIMO eigenmode transmission [ A]. In Proc IEEE, ICWC 2005 [ C]. Wuhan, China: IEEE Communications Society, 2005.77 - 80.
  • 7Z Y Yan,K M Wong,Z Q Luo,Optimal diagonal precoder for mulfiantenna communication systems [ J]. IEEE Transactions on Signal Processing, 2005,53 (6) : 2089 - 2100.
  • 8N Wang, S D Blostein, Minimum BER power allocation for MIMO spatial multiplexing systems [A]. In Proc IEEE ICC 2005 [C ]. Seoul, Korea: IEEE Communications Society, 2005. 2282 - 2286.
  • 9S Boyd, L Vandenberghe. Convex Optimization [M ]. New York: Cambridge University Press, 2004.

同被引文献14

  • 1唐万斌,张亮,李少谦.V-BLAST系统中采用发射功率分配的MMSE迭代软干扰抵消算法[J].电子与信息学报,2006,28(9):1640-1644. 被引量:4
  • 2李晓辉,易克初,刘乃安,杜晨光.一种MIMO系统中的新型资源分配算法[J].电路与系统学报,2006,11(5):84-87. 被引量:6
  • 3姜永权,刘乃安,沈民奋,杨家玮,王承恕,周渊平.MIMO系统一种新的功率分配算法及容量分析[J].电子学报,2007,35(9):1749-1753. 被引量:5
  • 4The 802.11 Working Group of the 802 Committee.IEEE,IEEEP802.11acTM/D2.2[S].New York:IEEE Three Park Avenue New York,2012,5:46-57.
  • 5Costa M.Writing on dirty paper[J].IEEE Transs.Information Theory.1983,29(3):439-441.
  • 6Athanasios P L.Tomlinson-Harashima Precoding with Partial Channel Knowlegde[J].IEEE Transs.Communicaitons.2005,53(1):5-9.
  • 7Haustein T,von Helmolt C,Jorswieck E,et al.Performance of MIMO Systems with Channel Inversion[J].IEEE 55th VTC.2002,11(1):35-39.
  • 8Spencer Q H,Swindlehurst A L,Haardt M.ZeroForcing Methods for Downlink Spatial Multiplexing in Multi-User MIMO Channels[J].IEEE Trans.Signal Processing.2004,52(2):461-471.
  • 9Wengerter C,Ohlhorst J,von Elbwart A G E.Fairness and Throughput Analysis for Generalized Proportional Fair Frequency Scheduling in OFDMA[J].IEEE 61st VTC,2005,3:1903-1907.
  • 10ChoYongSoo,Kim Jaewon.MIMO-OFDM无线通信技术及MATLAB实现[M].孙锴,黄威,译.北京:电子工业出版社,2011:345-356.

引证文献3

二级引证文献6

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部