| 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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| 引用本文： | 陈小敏,徐大专,虞湘宾,朱秋明.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),2009,33(4). |
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| 作者姓名： | 陈小敏 徐大专 虞湘宾 朱秋明 |
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| 作者单位： | 南京航空航天大学信息科学与技术学院,江苏,南京,210016 |
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| 基金项目： | 江苏省自然科学基金，南航引进人才基金 |
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| 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.
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| 关 键 词： | 天线选择 注水算法 功率分配 信道状态信息 |
Water-filling Algorithm of Antenna Selection and Power Allocation for Turbo-BLAST System with Imperfect Channel State Information |
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| CHEN Xiao-min,XU Da-zhuan,YU Xiang-bin,ZHU Qiu-ming.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(Nature Science),2009,33(4). |
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| Authors: | CHEN Xiao-min XU Da-zhuan YU Xiang-bin ZHU Qiu-ming |
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| Institution: | College of Information Science and Technology;Nanjing University of Aeronautics & Astronautics;Nanjing 210016;China |
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| 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 det... |
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| Keywords: | Turbo-BLAST |
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