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http://dx.doi.org/10.7840/kics.2016.41.5.520

Beamforming Based CSI Reference Signal Transmission for FDD Massive MIMO Systems  

Hong, Jun-Ki (Yonsei University, Department of Electrical and Electronic Engineering)
Jo, Han-Shin (Hanbat National University, Department of Electronics and Control Engineering)
Mun, Cheol (Korea National University of Transportation, Dept. of Information and Communication Engineering)
Yook, Jong-Gwan (Yonsei University, Department of Electrical and Electronic Engineering)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.41, no.5, 2016 , pp. 520-530 More about this Journal
Abstract
Since FDD massive MIMO (multiple-input multiple-output) system deploys hundreds of transmit antennas at base station (BS) compared to conventional MIMO system, the overhead of transmitting channel state information reference signal (CSI-RS) increases proportionally to the number of transmit-antennas. To overcome these disadvantages, we proposed beamforming based CSI-RS transmission technique for FDD massive MIMO system which transmit CSI-RS by limited amount of downlink resources.
Keywords
FDD; massive MIMO; CSI-RS; Resource grid; Reuse factor; Beamforming;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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