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[1] Sun Qiang, Zhang Yuan, Jin Shi, et al. Limited feedback SDMA schemes based on statistical CSI [J]. Journal of Southeast University (English Edition), 2012, 28 (1): 1-7. [doi:10.3969/j.issn.1003-7985.2012.01.001]
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Limited feedback SDMA schemes based on statistical CSI()
基于统计信道状态信息的有限反馈空分多址方法
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
28
Issue:
2012 1
Page:
1-7
Research Field:
Information and Communication Engineering
Publishing date:
2012-03-30

Info

Title:
Limited feedback SDMA schemes based on statistical CSI
基于统计信道状态信息的有限反馈空分多址方法
Author(s):
Sun Qiang1, 2, Zhang Yuan1, Jin Shi1, Gao Xiqi1
1National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
2School of Electronic and Information Engineering, Nantong University, Nantong 226019, China
孙强1, 2, 张源1, 金石1, 高西奇1
1东南大学移动通信国家重点实验室, 南京 210096; 2南通大学电子信息学院, 南通 226019
Keywords:
spatial division multiple access;  statistical channel state information;  multiuser multiple-input multiple-output
空分多址;  统计信道状态信息;  多用户多输入多输出
PACS:
TN929
DOI:
10.3969/j.issn.1003-7985.2012.01.001
Abstract:
This paper investigates the multi-beam selection algorithms for transmit correlation channels by using statistical channel state information(SCSI)and instantaneous channel state information. Unlike the conventional codebook-based transmission scheme, the proposed multi-beam selection with the single channel quality indicator(CQI)feedback(MBS-SCF)algorithm determines the preferred beam vector by exploiting the SCSI and only feeds back CQI at each timeslot. The performance of the MBS-SCF algorithm is nearly the same as that of the conventional scheme. In order to further improve the average sum rate, a novel multi-beam selection with the dual CQIs feedback(MBS-DCF)algorithm is proposed, which determines dual preferred statistical eigen-directions and feeds back dual CQIs at each timeslot. The theoretical analysis and simulation results demonstrate that the MBS-DCF algorithm can increase the multiuser diversity and multiplexing gain and exhibits a higher average sum rate.
研究了在发送相关信道场景下, 综合利用统计信道状态信息和瞬时信道状态信息的多波束选择算法.与传统的基于码本的传输方案不同, 基于单信道质量标识反馈的多波束选择算法利用统计信道状态信息决定其最佳的波束矢量, 每一时隙只反馈信道质量标识, 而且该算法的性能与传统方案基本相近.为了进一步提高平均和速率, 提出了基于双信道质量标识反馈的多波束选择算法, 该算法决定2个最佳统计特征方向, 并且每时隙反馈双信道质量标识.理论分析和仿真结果表明:基于双信道质量标识反馈的多波束选择算法可以增加多用户分集和复用增益, 具有更高的平均和速率.

References:

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Memo

Memo:
Biographies: Sun Qiang(1980—), male, lecturer, graduate; Gao Xiqi(corresponding author), male, doctor, professor, xqgao@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.60925004, 60902009, 61001103), the National Science and Technology Major Project of China(No.2009ZX03003-005-02, 2009ZX03003-011-04, 2011ZX03003-003-03), the Natural Science Foundation of Jiangsu Province of China(No.BK2011019), the Natural Science Foundation of the Jiangsu Higher Education Institutions of China(No.10KJB510021).
Citation: Sun Qiang, Zhang Yuan, Jin Shi, et al.Limited feedback SDMA schemes based on statistical CSI[J].Journal of Southeast University(English Edition), 2012, 28(1):1-7.[doi:10.3969/j.issn.1003-7985.2012.01.001]
Last Update: 2012-03-20