[1]陈小敏,徐大专,虞湘宾,等.不完全信道状态信息条件下Turbo-BLAST系统中注水天线选择和功率分配算法[J].南京理工大学学报(自然科学版),2009,(04):455-458.
 CHEN Xiao-min,XU Da-zhuan,YU Xiang-bin,et al.Water-filling Algorithm of Antenna Selection and Power Allocation for Turbo-BLAST System with Imperfect Channel State Information[J].Journal of Nanjing University of Science and Technology,2009,(04):455-458.
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不完全信道状态信息条件下Turbo-BLAST系统中注水天线选择和功率分配算法
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2009年04期
页码:
455-458
栏目:
出版日期:
2009-08-30

文章信息/Info

Title:
Water-filling Algorithm of Antenna Selection and Power Allocation for Turbo-BLAST System with Imperfect Channel State Information
作者:
陈小敏;徐大专;虞湘宾;朱秋明;
南京航空航天大学信息科学与技术学院,江苏南京210016
Author(s):
CHEN Xiao-minXU Da-zhuanYU Xiang-binZHU Qiu-ming
College of Information Science and Technology,Nanjing University of Aeronautics & Astronautics,Nanjing 210016,China
关键词:
Turbo-BLAST 天线选择 注水算法 功率分配 信道状态信息
Keywords:
Turbo-BLAST antenna selection water-filling algorithms power allocation channel state information
分类号:
TN914
摘要:
该文针对信道估计有误差情况,在不完全信道状态信息条件下提出了一种适用于Tur-bo-BLAST系统的天线选择和功率分配算法,发送端在总功率约束条件下,依据信道状态信息进行发送天线选择,并对选择的天线进行注水功率分配,以获得最大化信道容量。在接收端,采用Turbo原理对接收信号进行迭代检测,以改善系统的误比特率性能。仿真结果表明,采用所提算法不仅可以显著提高系统的信道容量,误比特率性能也有所改善。
Abstract:
Considering a scenario of imperfect channel state information(CSI) achieved at the receiver,a new technique is proposed that combines transmit antenna selection and power allocation adaptive for the modified Turbo-BLAST system.At the transmitter,in order to maximize the capacity,the optimal antenna subset is chosen for actual data transmission based on the CSI and appropriate power is allocated to the selected antennas based on the water-filling principle.At the receiver,Turbo idea is used for iterative detection in order to enhance the bit error rate(BER) performance of the whole system.Simulation results show that the proposed method is effective to improve not only the capacity but also the BER performance in the presence of CSI imperfection.

参考文献/References:

[ 1] SellathuraiM, Haykin S. Turbo-BLAST for wireless communications: Theory and experiments[ J]. IEEE Transactions on Signal Processing, 2002, 50( 10): 2538-2546.
[ 2] NamSH, ShinOS, LeeKB. Transmit power allo-cation for a modified V-BLAST system[ J]. IEEE Transactions on Communications, 2004, 52( 7): 1074-1079.
[ 3] Palomar DP, Fonollosa JR. Practicalalgorithms for a family ofwaterfilling solutions[ J]. IEEETransactions onSignalProcessing, 2005, 53( 2): 686- 695.
[ 4] ShiZY, LeibH. Transmit antenna selectedV-BLAST systemswithpower allocation[ J]. IEEETransactions on Vehicular Technology, 2008, 57 ( 4), 2293 -2304.
[ 5] ZhouSL, GiannakisGB. Optimal transmitter eigen-beamforming and space-time block coding based on channel mean feedback[ J]. IEEETransactions on SignalProcessing, 2002, 50( 10): 2599-2613.
[ 6] KanakisT, RapajicTB. RelayingMIMO channel ca-pacitywith imperfect channel knowledge at the receiv-er[A]. Proceedingsof IEEEMobileWMi AXSympo-sium2007[C]. Orlando, Florida, USA: IEEECom-municationsSociety, 2007. 80- 84.

备注/Memo

备注/Memo:
基金项目: 江苏省自然科学基金( BK2007192);南航引进人才基金(S0855-041)
作者简介: 陈小敏( 1975- ), 女,博士生, 讲师, 主要研究方向: 无线通信、空时编码的信号检测和链路自适应技术, E-mail: chenxm402@nuaa. edu. cn;
通讯作者: 徐大专( 1963- ),男, 教授, 博士生导师, 主要研究方向:无线通信、通信信号处理和无损检测, E-mail: xudazhuan@nuaa. edu. cn。
更新日期/Last Update: 2012-11-19