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1. 南京邮电大学通信与信息工程学院,江苏 南京 210003
2. 南京邮电大学理学院,江苏 南京 210023
[ "王军(1991-),男,南京邮电大学硕士生,主要研究方向为大规模 MIMO 系统中预编码。" ]
[ "戴建新(1971-),男,博士,南京邮电大学副教授,主要研究方向为5G 移动通信系统的关键技术。" ]
[ "程崇虎(1962-),男,博士,南京邮电大学通信与信息工程学院教授、院长,主要研究方向为电磁场。" ]
[ "汪鹏,男,南京邮电大学硕士生,主要研究方向为大规模MIMO系统中能效的研究。" ]
[ "李莎,女,南京邮电大学硕士生,主要研究方向为宽带频谱感知。" ]
网络出版日期:2016-04,
纸质出版日期:2016-04-20
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王军, 戴建新, 程崇虎, 等. 一种基于IQ失衡的大规模MIMO预编码算法[J]. 电信科学, 2016,32(4):70-75.
Jun WANG, Jianxin DAI, Chonghu CHENG, et al. Precoding algorithm based on IQ imbalance in massive MIMO[J]. Telecommunication science, 2016, 32(4): 70-75.
王军, 戴建新, 程崇虎, 等. 一种基于IQ失衡的大规模MIMO预编码算法[J]. 电信科学, 2016,32(4):70-75. DOI: 10.11959/j.issn.1000-0801.2016131.
Jun WANG, Jianxin DAI, Chonghu CHENG, et al. Precoding algorithm based on IQ imbalance in massive MIMO[J]. Telecommunication science, 2016, 32(4): 70-75. DOI: 10.11959/j.issn.1000-0801.2016131.
大规模MIMO具有较高的频谱利用率和能量效率等优点,但大量天线的使用也会带来一些缺点,比如IQ失衡问题等。针对大规模MIMO系统中存在的IQ失衡问题,提出了一种宽线性优化的块对角化预编码算法。通过仿真结果可以看出,本算法相对块对角化算法和宽线性对角化算法在误码率性能上有着显著的提高。
Massive multiple-input multiple-output(MIMO)refers to the idea equipping cellular base stations with a very large number of antennas,and is a communication way of severing several users. Widely-linear optimized block diagonalization type precoding techniques was proposed to alleviate the impact of IQ imbalance in the downlink massive multi-input multi-output systems. Numerical results show that significant performance can be gain compared to BD and WL-BD.
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ZHANG C , XIAO Z , GAO B , et al . Three-stage treatment of TX/RX IQ imbalance and channel with CFO for SC-FDE systems [J ] . IEEE Communications Letters , 2014 , 18 ( 2 ): 297 - 300 .
LI W , ZHANG Y , HUANG L K , et al . Low cost estimation of IQ imbalance for direct conversion transmitters [C ] // 2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting(BMSB),June 25-27,2014,Beijing,China . New Jersey : IEEE Press , 2014 : 1 - 6 .
ZHANG W , LAMARE R DE , PAN C , et al . Joint tx/rx iq imbalance parameter estimation using a generalized system model [C ] // 2015 IEEE International Conference on Communications (ICC),June 8-12,2015,London,UK . New Jersey : IEEE Press , 2015 : 4704 - 4709 .
HAKKARAINEN A , WERNER J , DANDEKAR K , et al . Precoded massive MU-MIMO uplink transmission under transceiver I/Q imbalance [C ] // 2014 IEEE Globecom Workshops,December 8-12,2014,Austin,TX,USA . New Jersey : IEEE Press , 2014 : 320 - 326 .
ZHANG W , LAMARE R D E , CHEN M . Reduced-rank widely linear precoding in massive MIMO systems with I/Q imbalance [C ] // European Signal Processing Conference,September 1-5,2014,Lisbon,Portugal . New Jersey : IEEE Press , 2014 : 331 - 335 .
ZAREI S , GERSTACKER W , SCHOBER R . I/Q imbalance aware widely-linear precoding for downlink massive MIMO systems [C ] // 2014 IEEE Globecom Workshops,December 8-12,2014,Austin,TX,USA . New Jersey : IEEE Press , 2014 : 301 - 307 .
ZHANG W , LAMARE R D E , PAN C , et al . Widely linear block-diagonalization type precoding in massive MIMO systems with IQ imbalance [C ] // 2015 IEEE International Conference on Communications (ICC),June 8-12,2015,London,UK . New Jersey : IEEE Press , 2015 : 1789 - 1794 .
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