Innovative Power Control Scheme Using the Mobility of the Station in the Large-Scale Antenna Array System

Chang-Bin HA  Hyoung-Kyu SONG  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E100-A   No.6   pp.1338-1341
Publication Date: 2017/06/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E100.A.1338
Type of Manuscript: LETTER
Category: Digital Signal Processing
massive MIMO,  pre-coding,  fast fading,  Doppler frequency,  power control,  

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The massive multiple input multiple output (MIMO) system with large-scale antenna array at base station (BS) simultaneously communicates with many mobile stations (MSs) ensuring high reliability using the pre-coding. But, in mobile communication, the performance of the pre-coding is degraded by fast fading. For improving the performance of the pre-coding, this letter proposes the power control scheme of the new approach that has the variable step size using the statistical characteristic of fast fading and Doppler frequency. From the simulation results, it is shown that the proposed scheme improves signal-to-interference-plus-noise ratio (SINR) performance.