X信道中一种新的空时编码传输方案

doi:10.3969/j.issn.1001-2400.2014.04.021

J4 ›› 2014, Vol. 41 ›› Issue (4): 116-122.doi: 10.3969/j.issn.1001-2400.2014.04.021

X信道中一种新的空时编码传输方案

田心记;逯静

(河南理工大学计算机科学与技术学院，河南焦作 454000)

收稿日期:2013-04-01 出版日期:2014-08-20 发布日期:2014-09-25
通讯作者: 田心记
作者简介:田心记(1983-)，女，讲师，博士，E-mail: tianxinji.world@aliyun.com．
基金资助:
国家自然科学基金资助项目(51174263， 61202286)

New space-time coded transmission scheme for the X channel

TIAN Xinji;LU Jing

(School of Computer Science and Technology, Henan Polytechnic Univ., Jiaozuo 454000， China)

Received:2013-04-01 Online:2014-08-20 Published:2014-09-25
Contact: TIAN Xinji

摘要/Abstract

摘要：

针对每个用户均配置四根天线的X信道，提出了一种新的空时编码传输方案．每个用户采用速率为2的空时分组码(R2-STBC)，首先对编码矩阵进行预编码，然后将预编码后的编码矩阵进行加减组合后分两次发送．通过对接收信号进行加减操作减少相互干扰的编码矩阵的数量，再通过合理地设计预编码以及接收端的线性处理消除多用户干扰．与已有方案相比，所提方案在保持传输效率不变的情况下，不仅极大地减少了反馈信息，而且性能显著优于相同场景中的已有方案．

关键词: X信道, 空时分组码, 预编码, 多用户干扰, 反馈量

Abstract:

A new space-time coded transmission scheme is proposed for the X channel with four antennas at each user who employs the rate-2 space-time block code. Each codeword is pre-coded, and then the addition and subtraction combinations of each codeword after pre-coding are transmitted separately. The number of interferential coding matrices is reduced through addition and subtraction operations of the received signals, and then the multi-user interference is eliminated by proper pre-coding at the transmitters and linear processing at the receivers. Compared with the existing scheme, the proposed scheme not only greatly reduces the feedback amount, but also significantly improves the system reliability.

Key words: X channel, space-time block code, pre-coding, multi-user interference, feedback amount

田心记;逯静. X信道中一种新的空时编码传输方案[J]. J4, 2014, 41(4): 116-122.

TIAN Xinji;LU Jing. New space-time coded transmission scheme for the X channel[J]. J4, 2014, 41(4): 116-122.

参考文献

［1］ Kaiser T, Zheng F, Dimitrov E. An Overview of Ultra-wide-band Systems with MIMO ［J］. Proceedings of the IEEE, 2009, 97(2): 285-312.
［2］张天魁, 程婕, 冯春燕. 一种全速率的多天线中继STBC协作机制［J］. 西安电子科技大学学报, 2010, 37(2): 334-339.
Zhang Tiankui, Cheng Jie, Feng Chunyan. Full Rate STBC Cooperation Scheme for the Multi-antenna Relay［J］. Journal of Xidian University, 2010, 37(2): 334-339.
［3］ Kim Y J, Choi C H, Im G H. Space-time Block Coded Transmission with Phase Feedback for Two-user mimo-mac ［C］//IEEE International Conference on Communications. Piscataway: IEEE, 2011: 5963457.
［4］ Oggier F, Rekaya G, Belfiore J C, et al. Perfect Space-time Block Codes ［J］. IEEE Transactions on Information Theory, 2006, 52(9): 3885-3902.
［5］ Mroueh L, Stephanie R L, Belfiore J C. Application of Perfect Space Time Codes: PEP Bounds and Some Practical Insights ［J］. IEEE Transactions on Communications, 2012, 60(3): 747-755.
［6］ Rabiei P, Al-Dhahir N, Calderbank R. New Rate-2 STBC Design for 2 TX with Reduced-complexity Maximum Likelihood Decoding ［J］. IEEE Transactions on Wireless Communications, 2009, 8(4): 1803-1813.
［7］ Jiang C L, Wang M M, Shu F. Multi-user MIMO with Limited Feedback Using Alternating Codebooks ［J］. IEEE Transactions on Communications, 2012, 60(2): 333-338.
［8］ Wang J T. Joint MMSE Equalization and Power Control for MIMO System under Multi-user Interference ［J］. IEEE Communications Letters, 2012, 16(1): 54-56.
［9］ Maddah-Ali M, Motahari A, Khandani A. Communication over MIMO X Channels: Interference Alignment, Decomposition, and Performance Analysis ［J］. IEEE Transactions on Information Theory, 2008, 54(8): 3457-3470.
［10］ Adrian A, Josep V. Improved Interference Alignment Precoding for the MIMO X Channel ［C］//IEEE International Conference on Communications. Piscataway: IEEE, 2011: 5962671.
［11］ Huang C, Cadambe V R, Jafar S A. Interference Alignment and the Generalized Degrees of Freedom of the X Channel ［J］. IEEE Transactions on Information Theory, 2012, 58(8): 5130-5150.
［12］ Jafar S, Shamal S. Degree of Freedom Region for the Mimo X Channel ［J］. IEEE Transactions on Information Theory, 2008, 54(1): 151-170.
［13］ Li L B, Jafarkhani H, Jafar S A. When Alamouti Codes Meet Interference Alignment: Transmission Schemes for Two-user X Channel ［C］//IEEE International Symposium on Information Theory. Piscataway: IEEE, 2011: 2577-2581.
［14］ Li F, Jafarkhani H. Space-time Processing for X Channels Using Precoders ［J］. IEEE Transactions on Signal Processing, 2012, 60(4): 1849-1861.

[1]	邓冉,窦高奇,高俊,王青波,陈洋. 双路径MIMO中继网络预编码盲干扰抑制[J]. 西安电子科技大学学报, 2019, 46(3): 116-122.
[2]	仲伟志, 徐磊, 朱秋明, 陈小敏, 周建江. 面向天线互耦效应抑制的波束预编码算法[J]. 西安电子科技大学学报, 2018, 45(6): 80-85.
[3]	王青波, 窦高奇, 高俊. 预编码增益优化的预编码叠加训练设计[J]. 西安电子科技大学学报, 2018, 45(6): 99-105.
[4]	杨若男;楼顺天;张伟涛. 非冗余块预编码MIMO-OFDM系统盲信道估计算法[J]. 西安电子科技大学学报, 2018, 45(4): 29-33.
[5]	李静;葛建华. 高斯X信道在噪声干扰下的和容量[J]. J4, 2016, 43(1): 71-74+150.
[6]	王伟;李勇朝;张海林. 一种低复杂度的MIMO正交缺陷门限减格预编码算法[J]. J4, 2015, 42(5): 1-6+32.
[7]	孙垂强;葛建华;朱斌;李静. 匹配加权信号泄漏噪声比多用户预编码迭代算法[J]. J4, 2013, 40(4): 60-64.
[8]	李川;刘伟. 一种基于正交空时块编码的单天线AF中继方案[J]. J4, 2013, 40(2): 117-122.
[9]	耿烜;孙作雷;刘锋;马英红. 块对角化的最小均方误差几何均值分解矢量预编码[J]. J4, 2013, 40(2): 207-212.
[10]	马天鸣;李凤荣;施玉松;王营冠. 一种新的准正交空时分组码设计方案[J]. J4, 2012, 39(4): 172-177.
[11]	田心记;倪水平;宋成;赵伟. 一种改进的广义正交空时分组码[J]. J4, 2012, 39(4): 161-166.
[12]	康晓非;杨家玮;刘健. 多用户环境下TH-UWB系统的盲Rake接收机[J]. J4, 2012, 39(2): 12-16+65.
[13]	战金龙;卢建军;卢光跃. 带有预编码的准正交分组空频时发射技术[J]. J4, 2011, 38(6): 134-139.
[14]	李新民;白宝明;童胜. 具有不完全信道状态信息的MIMO广播信道预编码[J]. J4, 2011, 38(5): 7-12.
[15]	李钊;赵林靖;刘勤. 多天线认知无线电网络联合资源管理方法[J]. J4, 2011, 38(4): 20-25+37.

X信道中一种新的空时编码传输方案

New space-time coded transmission scheme for the X channel

PDF (PC)

赞

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 10