Phase Noise Effect on MIMO-OFDM Systems with Common and Independent Oscillators

被引：5

作者：

Chen, Xiaoming ^{[1
]}

Wang, Hua ^{[2
]}

Fan, Wei ^{[3
]}

Zou, Yaning ^{[4
]}

Wolfgang, Andreas ^{[5
]}

Svensson, Tommy ^{[6
]}

Luo, Jian ^{[7
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China

[2] Keysight Technol Inc, Keysight Labs, DK-9220 Aalborg, Denmark

[3] Aalborg Univ, Dept Elect Syst, DK-9000 Aalborg, Denmark

[4] Tech Univ Dresden, Vodafone Chair Mobile Commun Syst, D-01062 Dresden, Germany

[5] Qamcom Res & Technol AB, S-41285 Gothenburg, Sweden

[6] Chalmers Univ Technol, Dept Elect Engn, S-41296 Gothenburg, Sweden

[7] Huawei Technol Duesseldorf GmbH, D-80992 Munich, Germany

来源：

WIRELESS COMMUNICATIONS & MOBILE COMPUTING | 2017年

关键词：

CHANNEL ESTIMATION; RADIO LINK; IMBALANCE; MODEL; PLL;

D O I：

10.1155/2017/8238234

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The effects of oscillator phase noises (PNs) on multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems are studied. It is shown that PNs of common oscillators at the transmitter and at the receiver have the same influence on the performance of (single-stream) beamforming MIMO-OFDM systems, yet different influences on spatial multiplexing MIMO-OFDM systems with singular value decomposition (SVD) based precoding/decoding. When each antenna is equipped with an independent oscillator, the PNs at the transmitter and at the receiver have different influences on beamforming MIMO-OFDM systems as well as spatial multiplexing MIMO-OFDM systems. Specifically, the PN effect on the transmitter (receiver) can be alleviated by having more transmit (receive) antennas for the case of independent oscillators. It is found that the independent oscillator case outperforms the common oscillator case in terms of error vector magnitude (EVM).

引用

页数：12

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