计算机科学 ›› 2022, Vol. 49 ›› Issue (6A): 632-638.doi: 10.11896/jsjkx.210800036
卿朝进, 杜艳红, 叶青, 杨娜, 张岷涛
QING Chao-jin, DU Yan-hong, YE Qing, YANG Na, ZHANG Min-tao
摘要: 在大规模多输入多输出(Massive-Multiple Input and Multiple-Output,mMIMO)系统中,叠加信道状态信息(Channel State Information,CSI)反馈可避免上行带宽资源占用,但叠加干扰会造成接收机计算复杂度高、反馈精度低等问题,且均未考虑存在CSI估计错误的实际应用场景。为此,针对存在CSI估计错误场景下的叠加CSI反馈,在改进极限学习机(Extreme Learning Machine,ELM)的基础上,提出基于增强型ELM的叠加CSI反馈方法。首先,基站对接收信号进行预均衡处理,初步消除上行信道干扰;然后对传统叠加CSI反馈进行迭代展开,构建增强型ELM网络,通过规范化各个ELM网络的隐藏层输出来增强网络学习数据分布的能力,从而改善恢复下行CSI和上行用户数据序列(Uplink User Data Sequence,UL-US)的精确性。仿真实验表明,与经典和时新的叠加CSI反馈方法相比,所提方法能够获得相似或更好的下行CSI和上行用户数据的恢复精确性;同时,针对不同的参数影响,性能改善具有鲁棒性。
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[1] LARSSON E G,EDFORS O,TUFVESSON F,et al.MassiveMIMO for next generation wireless systems[J].IEEE Transactions on Communications,2014,52(2):186-195. [2] SIM M,PARK J,CHAE C,et al.Compressed channel feedbackfor correlated massive MIMO systems[C]//ICC-IEEE International Conference on Communication Workshop.IEEE,2016:95-104. [3] ZHANG F,SUN S,GAO Q,et al.Enhanced CSI acquisition for FDD multi-user massive MIMO systems[J].IEEE Access,2018,6:23034-23042. [4] SHEN W,DAI L,SHI Y,et al.Compressive sensing-based diffe-rential channel feedback for massive MIMO[J].Electronics Letters,2015,51(22):1824-1826. [5] SHEN W,DAI L,SHIM B,et al.Channel feedback based onAoD-adaptive subspace codebook in FDD massive MIMO systems[J].IEEE Transactions on Communications,2018,66(11):5235-5248. [6] WANG Y,LIU M,YANG J,et al.Data-driven deep learning forautomatic modulation recognition in cognitive radios[J].IEEE Transactions on Vehicular Technology,2019,68(4):4074-4077. [7] GUI G,WANG Y,HUANG H.Deep learning based physicallayer wireless communication techniques:Opportunities and challenges[J].Journal on Communications,2019,40(2):19-23. [8] HUANG G H,SONG Y,SARI H.Deep learning for an effective non-orthogonal multiple access scheme[J].IEEE Transactions on Vehicular Technology,2018,67(9):8440-8450. [9] XU D,HUANG Y,YANG L.Feedback of downlink channelstate information based on superimposed coding[J].IEEE Communications Letters,2007,11(3):240-242. [10] QING C,CAI B,YANG Q,et al.Deep learning for CSI feedback based on superimposed coding[J].IEEE Access,2019,7:93723-93733. [11] QING C,CAI B,YANG Q,et al.ELM-based Superimposed CSIFeedback for FDD Massive MIMO System[J].IEEE Access,2020,8:53408-53418. [12] WEN C,SHIH W,JIN S.Deep learning for massive MIMOCSI feedback[J].IEEE Wireless Communications Letters,2018,7(5):748-751. [13] WANG T,WEN C,JIN S,et al.Deep learning-based CSI feedback approach for time-varying massive MIMO channels[J].IEEE Wireless Communications Letters,2019,8(2):416-419. [14] LU C,XU W,SHEN H,et al.MIMO channel information feedback using deep recurrent network[J].IEEE Communications Letters,2019,23(1):188-191. [15] QING C J,YANG Q Y,CAI B,et al.Superimposed coding based CSI feedback using 1-bit compressed sensing[J].IEEE Communications Letters,2019,24(1):193-197. [16] QING C J,YANG Q Y,WAN D Q.Compressed sensing CSI feedback method assisted by partial support set[J].Electronic Journal,2019,438(8):71-78. [17] XIE Y,ELDAR Y,GOLDSMITH A.Reduced-dimension multiuser detection[C]//48th Annual Allerton Conference on Control,and Computing(Allerton).IEEE,2010. [18] RAO X,LAU V.Distributed compressive CSIT estimation and feedback for FDD multi-user massive MIMO systems[J].IEEE Transactions on Signal Processing,2014,62(12):3261-3271. [19] VAN L T,KO Y,VIEN N A,et al.Deep learning-based detector for OFDM-IM[J].IEEE Wireless Communications Letters,2019,8(4):1159-1162. [20] CHENG P,CHEN Z.Multidimensional compressive sensingbased analog CSI feedback for massive MIMO-OFDM systems[C]//Vehicular Technology Conference.IEEE,2014:1-6. [21] JANG Y,KONG G,JUNG M,et al.Deep Autoencoder based CSI Feedback with Feedback Errors and Feedback Delay in FDD Massive MIMO Systems[J].IEEE Wireless Communications Letters,2019,8(3):833-836. [22] KUO P,KUNG H,TING P.Compressive sensing based channel feedback protocols for spatially-correlated massive antenna arrays[C]//Proc.IEEE Int.Conf.Wireless Commun.Netw.(WCNC).2012:492-497. [23] GUERREIRO J,DINIS R,MONTEZUMA P.Analytical Per-formance Evaluation of Precoding Techniques for Nonlinear Massive MIMO Systems With Channel Estimation Errors[J].IEEE Transactions on Communications,2018,66(4):1440-1451. [24] HUYNH V T D,NOELS N,STEENDAM H.BER evaluation of OFDM systems with joint effect of TI-ADC circuits gain mismatch and channel estimation error[J].IEEE Transactions on Communications,2019,67(5):3612-3623. [25] WANG C,AU E K,MURCH R D,et al.On the performance of the MIMO zero-forcing receiver in the presence of channel estimation error[J].IEEE Transactions on Wireless Communications,2007,6(3):805-810. [26] MARZETTA T L.BLAST training:estimating channel characteristics for high-capacity space-time wireless[C]//Proceedings of the Annual Allerton Conference on Communication Control and Computing.1999:958-966. [27] HASSIBI B,HOCHWALD B M.How much training is needed in multiple-antenna wireless links?[J].IEEE Trans.Inf.Theory,2003,49(4):951-963. [28] WEN C,SHIH W,JIN S.Deep Learning for Massive MIMO CSI Feedback[J].IEEE Wireless Communications Letters,2018,7(5):748-751. |
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