荷叶状空间信道模型与MIMO多天线系统分析

doi:10.3969/j.issn.1001-2400.2018.01.024

Abstract

Abstract:

A multiple input multiple output (MIMO) antenna system with the uniform linear array (ULA) and uniform circular array (UCA) in three dimensional suburb mobile communication environment is analyzed and investigated. The lotus leaf geometric channel model is proposed, and the probability density function of arriving waves is calculated. Then, expressions for signal correlations are derived in two ways, namely, from steering vectors of antenna arrays and autocorrelation functions of the fading channel, and the relationship between correlation with the spacing of antenna arrays and angular parameters is classified. The results are compared with those in actual channel environment, and it is shown that the channel capacity of the lotus leaf geometric channel model is in agreement with that of the latter. It is concluded that the deployment of antenna array spacing plays a decisive role in correlations between angular spreads of multipath signals.

Key words: multiple input multiple output antenna array, uniform linear array, uniform circular array, signal fading correlation, angle of arrival

ZHU Huijuan;ZHOU Jie;SHAO Genfu. Lotus leaf geometric channel modeling and MIMO multi-antenna system performance[J].Journal of Xidian University, 2018, 45(1): 135-139+144.

References

［1］ MUHAMMAD N A, WANG P, LI Y, et al. Analytical Model for Outdoor Millimeter Wave Channels Using Geometry-based Stochastic Approach［J］. IEEE Transactions on Vehicular Technology, 2017, 66(2): 912 -926.
［2］ CHEN J J, YIN X F, TIAN L, et al. Millimeter-wave Channel Modeling Based on a Unified Propagation Graph Theory［J］. IEEE Communications Letters, 2017, 21(2): 246-249.
［3］ ROMERO-JEREZ J M, LOPEZ-MARTINEZ F J. A New Framework for the Performance Analysis of Wireless Communications under Hoyt Fading［J］. IEEE Transactions on Information Theory, 2014, 63(3): 1693-1702.
［4］ NGHIA N T, TUAN H D, DUONG T Q, et al. MIMO Beamforming for Secure and Energy-efficient Wireless Communication［J］. IEEE Signal Processing Letters, 2017, 24(2): 236-239.
［5］ GONG C, HUANG B Y, XU Z Y. Correlation and Outage Probability of NLOS SIMO Optical Wireless Scattering Communication Channels under Turbulence［J］. IEEE/OSA Journal of Optical Communications and Networking, 2016, 8(12): 928-937.
［6］李致金, 周杰, 乔杰, 等. 自适应维分编码维数估计与降维算法［J］. 西安电子科技大学学报, 2014, 41(6): 148-154.
LI Zhijin, ZHOU Jie, QIAO Jie, et al. Dimensions Estimating and the Dimension-reducing Algorithms for the Adaptive Multi-dimension Code［J］. Journal of Xidian University, 2014, 41(6): 148-154.
［7］ JANASWAMY R. Angle and Time of Arrival Statistics for the Gaussian Scatter Density Model［J］. IEEE Transactions on Wireless Communications, 2002, 1(3): 488-497.
［8］ JANASWAMY R. On the EM Degrees of Freedom in Scattering Environments［J］. IEEE Transactions on Antennas and Propagation, 2011, 59(10): 3872-3881.
［9］周杰, 王亚林, 菊池久和. 三维空间域多普勒功率谱及其多天线系统性能［J］. 物理学报, 2014, 63(24): 111-125.
ZHOU Jie, WANG Yalin, KIKUCHI H. Doppler Power Spectrum Density and Multi-antenna System Performance Inthree-dimensional Environment［J］. Acta Physica Sinica, 2014, 63(24): 111-125.
［10］ GHADDAR M, NEDIL M, BEN-MABROUK I, et al. Multiple-input Multiple-output Beam-space for High-speed Wireless Communication in Underground Mine［J］. IET Microwaves, Antennas and Propagation, 2016, 10(1): 8-15.
［11］ VU M, PAULRAJ A. On the Capacity of MIMO Wireless Channels with Dynamic CSIT［J］. IEEE Journal on Selected Areas in Communications, 2007, 25(7): 1269-1283.
［12］ FARD S F, ALIMOHAMMAD A, COCKBUMM B F. Single-field Programmable Gate Array Simulator for Geometric Multiple-input Multiple-output Fading Channel Models［J］. IET Communications, 2011, 5(9): 1246-1254.
［13］ JANASWAMY R. Angle of Arrival Statistics for a 3-D Spheroid Model［J］. IEEE Transactions on Vehicular Technology, 2002, 51(5): 1242-1247.

[1]	GUO Qiang,LI Jiaying,WANG Yani. Synthesis of linear arrays with sidelobe suppression and null steering using the improved coyeto optimization algorithm [J]. Journal of Xidian University, 2021, 48(6): 172-178.
[2]	DENG Bing;SUN Zhengbo;YANG Le. Efficient closed-form estimator for TDOA-FDOA-AOA localization [J]. Journal of Xidian University, 2018, 45(2): 171-175+180.
[3]	LIU Chengcheng;DING Yongchao;ZHAO Yongjun;YANG Jing2. Robust beamforming algorithm for general signal models based on the ULA [J]. J4, 2014, 41(5): 166-172.
[4]	MAO Yong-yi1;LI Ming-yuan2;ZHANG Bao-jun1. Effective TDOA／AOA data fusion location algorithm for mitigating the influence of the NLOS propagation [J]. J4, 2008, 35(5): 942-945.

Lotus leaf geometric channel modeling and MIMO multi-antenna system performance

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 4

Metrics

Comments

Recommended 10