大规模MIMO系统中融合用户调度的叠加导频信道估计方法

李洁; 景小荣

doi:10.11959/j.issn.1000-0801.2016302

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大规模MIMO系统中融合用户调度的叠加导频信道估计方法

研究与开发 | 更新时间：2024-06-05

- 大规模MIMO系统中融合用户调度的叠加导频信道估计方法
- Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system
- 电信科学 2016年32卷第12期页码：67-74
- 作者机构：
  
  1. 重庆邮电大学通信与信息工程学院，重庆 400065
  2. 移动通信技术重庆市重点实验室，重庆 400065
- 作者简介：
  
  [ "李洁（1990-），女，重庆邮电大学硕士生，主要研究方向为大规模MIMO系统中信道估计。" ]
  [ "景小荣（1974-），男，博士，重庆邮电大学副教授，主要研究方向为多天线系统中的信号处理。" ]
- 基金信息：
  
  国家科技重大专项基金资助项目;National Science and Technology Major Special Project of China(2015ZX03001033-002);重庆市基础与前沿研究计划项目;Chongqing Research Program of Basic Research and Frontier Technology(cstc2015jcyjA40040)
- DOI：10.11959/j.issn.1000-0801.2016302
  中图分类号： TN919.3
- 网络出版日期：2016-12，
  
  纸质出版日期：2016-12-20
- 稿件说明：
移动端阅览
李洁, 景小荣. 大规模MIMO系统中融合用户调度的叠加导频信道估计方法[J]. 电信科学, 2016,32(12):67-74.

Jie LI, Xiaorong JING. Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system[J]. Telecommunications science, 2016, 32(12): 67-74.
李洁, 景小荣. 大规模MIMO系统中融合用户调度的叠加导频信道估计方法[J]. 电信科学, 2016,32(12):67-74. DOI： 10.11959/j.issn.1000-0801.2016302.

Jie LI, Xiaorong JING. Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system[J]. Telecommunications science, 2016, 32(12): 67-74. DOI： 10.11959/j.issn.1000-0801.2016302.

摘要

传统的信道估计策略通常基于时分复用方式实现导频配置，导致大规模多输入多输出系统的带宽利用率有限，同时受信道相干时间的限制，大规模MIMO系统可利用的导频资源非常有限，因此，相邻小区不得不通过导频复用来实现信道估计，从而引起导频污染问题。针对上述问题，融合用户调度，提出了一种基于叠加周期性导频的信道估计方法。该方法通过优化功率分配因子，以信号泄露噪比（SLNR）作为度量指标，对不同小区的用户进行协作调度并分配相同的导频，不仅减轻了导频污染，而且提高了信道估计的精度。数值仿真验证了方法的有效性。

Abstract

Time division multiplexing method is commonly used in conventional channel estimation

which results in poor efficiency of bandwidth usage. Additionally

the available pilot resources are finite due to the limited channel coherence time

and the pilot sequences must be multiplexed between the neighbor cells

which leads to problems of pilot contamination. To solve these problems above

superimposed pilot-based channel estimation method combined with user scheduling was proposed. In the method

the users in different cells were cooperatively scheduled and assigned the same pilot by optimizing the factor of power allocation and using the signal to leakage and noise ratio （SLNR）as measure metric. Simulation results demonstrate the validity of the proposed method.

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references

NOH S , ZOLTOWSKI M D , SUNG Y , et al . Pilot beam pattern design for channel estimation in massive MIMO systems [J ] . IEEE Journal of Selected Topics in Signal Processing , 2014 , 8 ( 5 ): 787 - 801 .

TRUONG K T , LOZANO A , HEATH R W . Optimal training in continuous flat-fading massive MIMO systems [C ] // European Wireless 2014 20th European Wireless Conference , May 14 - 16 , 2014 , Barcelona,Spain . New Jersey : IEEE Press , 2014 : 1 - 6 .

GE X , TU S , HAN T , et al . Energy efficiency of small cell backhaul networks based on Gauss-Markov mobile models [J ] . IET Networks , 2015 , 4 ( 2 ): 158 - 167 .

ZI R , GE X , THOMPSON J , et al . Energy efficiency optimization of 5G radio frequency chain systems [J ] . IEEE Journal on Selected Areas in Communications , 2016 , 34 ( 4 ): 758 - 771 .

FRAHANG-BOROUJENY B . Pilot-based channel identification:proposal for semi-blind identification of communications channels [J ] . Electronics Letters , 1995 , 31 ( 15 ): 1044 - 1046 .

TUGNAIT J K , LUO W . On channel estimation using superimposed training and first-order statistics [C ] // 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing（ICASSP'03） , May 11 - 20 , 2003 , Anchorage, Alaska, United States . New Jersey : IEEE Press , 2003 : 624 - 627 .

MENG X , TUGNAIT J K . MIMO channel estimation using superimposed training [C ] // 2004 IEEE International Conference on Communications , June 20 - 24 , 2004 , Paris, France . New Jersey : IEEE Press , 2004 : 2663 - 2667 .

ZHOU T G , VIBERG M , MCKELVEY T . A first-order statistical method for channel method for channel estimation [J ] . IEEE Signal Processing Letters , 2003 , 10 ( 3 ): 57 - 60 .

CHEN N , ZHOU G T . A superimposed periodic pilot scheme for semi-blind channel estimation of OFDM systems [C ] // IEEE DSP Workshop , October 11 - 13 , 2002 , Pine Mountain, GA, USA . New Jersey : IEEE Press , 2002 : 362 - 365 .

韩湘，魏急波 . 一种MIMO系统中叠加导频的最优设计方法 [J ] . 电子学报 , 2007 , 35 ( 4 ): 732 - 735 .

HAN X , WEI J B . An optimal design method of superimposed pilot in MIMO systems [J ] . Acta Electronica Sinica , 2007 , 35 ( 4 ): 732 - 735 .

ZHANG H , GAO S , LI D , et al . On superimposed pilot for channel estimation in multi-cell multiuser MIMO uplink: large system analysis [J ] . IEEE Transactions on Vehicular Technology , 2016 , 65 ( 3 ): 1492 - 1505 .

BJORNSON E , OTTERSTEN B . A framework for training-based estimation in arbitrarily correlated Rician MIMO channels with Rician disturbance [J ] . IEEE Transactions on Signal Processing , 2010 , 58 ( 3 ): 1807 - 1820 .

ZHU X , WANG Z , DAI L , et al . Smart pilot assignment for massive MIMO [J ] . IEEE Communications Letters , 2015 , 19 ( 9 ): 1644 - 1647 .

OH D C , LEE J W , LEE Y H . Correlation-based cooperative user scheduling in the uplink of cellular systems [C ] // IEEE 3rd International Conference on Digital Telecommunications , May 19 - 23 , 2008 , Beijing, China . New Jersey : IEEE Press , 2008 : 94 - 98 .

LU S , KANG G , ZHU Q , et al . An orthogonal superimposed pilot for channel estimation in MIMO-OFDM systems [C ] // IEEE 65th Vehicular Technology Conference , April 22 - 25 , 2007 , Dublin, Ireland . New Jersey : IEEE Press , 2007 : 2409 - 2413 .

YIN H F , GESBERT D , FILIPPOU M , et al . A coordinated approach to channel estimation in large-scale multiple-antenna systems [J ] . IEEE Sel Area Communication , 2013 ( 31 ): 264 - 273 .

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