LOS环境下零导频Massive MIMO通信方法

doi:10.3969/j.issn.1001-2400.2018.04.001

Abstract

Abstract:

To resolve the problem that the pilot overheads and the computation complexity of traditional channel estimation algorithms are too large in frequency division duplex massive multiple input multiple output (FDD Massive MIMO) system, a massive MIMO communication method based on the zero pilot is proposed. The transmitter does not transmit the pilot. The transmitter uses the location information to calculate the direction of the arrival (DOA) angle, and then adjusts the transmitted signal to form the directional beam. The receiver directly demodulates the received data without channel estimation and equalization. Simulation results show that, compared with the traditional FDD Massive MIMO system, the proposed method greatly reduces pilot overheads and the computational complexity, and improves the spectral efficiency, and that the system sum-rate improves by about 4.6dB at a high signal-to-noise ratio.

Key words: frequency division duplex, massive multiple input multiple output system, location information, zero pilot

LI Wengang;HU Aili;SUN Longxin;WANG Yiwei. Massive MIMO communication method based on the zero pilot in LOS environment[J].Journal of Xidian University, 2018, 45(4): 1-5+85.

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[1]	LI Xiaojie;LI Ying;HAN Huimei. Pilot random access scheme in massive MIMO systems [J]. Journal of Xidian University, 2018, 45(1): 55-59.
[2]	WANG Kun;WU Meng. Novel location-aided routing in Ad Hoc networks [J]. J4, 2008, 35(2): 367-372.

Massive MIMO communication method based on the zero pilot in LOS environment

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