Authors: Yalin Wang Jie Zhou Hisakazu Kikuchi
Publish Date: 2016/04/04
Volume: 89, Issue: 2, Pages: 521-537
Abstract
In this paper we develop a novel threedimensional 3D multiantenna array for enhancing the performance of multiple input multiple output systems This array is composed of two uniform circular arrays UCAs A frequency nonselective Rayleigh fading channel model is introduced to calculate the spatial fading correlation SFC and capacity of a multipath channel Then the influence of the rotation angle phi 0 and the perpendicular distance h of the upper UCA in a double uniform circular array DUCA with reference to the lower UCA and the radius r of the DUCA on the SFC and the capacity are investigated In addition the DUCA is applied to a multiple signal classification algorithm in order to estimate the direction of arrival DOA Simulation results show that phi 0 which results in the minimum correlation and the maximum capacity depends on the angle of arrival and the increase in h and r enhances the capacity performance However when h/lambda 1/2 h has little effect on the capacity Comparing the spatial spectrum and the root mean square error of the DUCA with a general uniform linear array UCA and 2L array this paper shows that 3D antenna arrays have significant advantages in DOA estimationThe authors would like to thank the reviewers for their constructive comments which greatly helped improve this paper They also acknowledge Professor Fumiyuki Adachi for his help in completing this paper Department of Electrical and Electronic Engineering Tohoku University Japan This research was supported by the National Natural Science Foundation of ChinaNo 61372128 and 61471153 and the Major Program of the Natural Science Foundation of Institution of Higher Education of Jiangsu Province No14KJA510001
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