Novel IQ imbalance estimation for wideband MIMO OFDM systems with CFO

被引：0

作者：

Sandell, Magnus ^{[1
]}

Tsimbalo, Evgeny ^{[1
]}

Jardak, Seifallah ^{[1
]}

Uchida, Daisuke ^{[2
]}

Akita, Koji ^{[2
]}

Yoda, Daiki ^{[2
]}

Kawaguchi, Tamio ^{[2
]}

Sano, Makoto ^{[2
]}

机构：

[1] Toshiba Res Europe Ltd, Bristol Res & Innovat Lab, 32 Queen Sq, Bristol BS1 4ND, Avon, England

[2] Toshiba Co Ltd, Wireless Syst Lab, Corp Res & Dev Ctr, Saiwai Ku, Komukai Toshiba Cho, Kawasaki, Kanagawa, Japan

来源：

2019 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM) | 2019年

关键词：

IQ imbalance; CFO; wideband; MIMO; OFDM; CARRIER FREQUENCY OFFSET; COMPENSATION;

D O I：

10.1109/globecom38437.2019.9014138

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper deals with IQ imbalance in wideband MIMO OFDM systems. In systems with a large bandwidth, the IQ imbalance will be frequency-dependent and hence can not be described by a single parameter. Furthermore if there is a carrier-frequency offset (CFO), the IQ imbalance estimation in a MIMO system with multiple channels becomes a challenging task. However the CFO introduces a time-varying component to the received signal which we exploit to estimate the model parameters using a carefully designed training sequence. This approach derives the TX and RX IQ imbalance separately in an accurate fashion. We verify this by simulations and also show the estimated IQ imbalance in a hardware prototype we have built.

引用

页数：6

共 50 条

[41] IQ imbalance estimation and compensation method for ultra-wideband receiver
Xu Z.
Liu P.
Ren S.
Cheng Y.
Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument, 2018, 39 (06): : 157 - 163
[42] A new technique for estimation and compensation-of IQ imbalance in OFDM receivers
Fouladifard, S
Shafiee, H
ICCS 2002: 8TH INTERNATIONAL CONFERENCE ON COMMUNICATIONS SYSTEMS, VOLS 1 AND 2, PROCEEDINGS, 2002, : 224 - 228
[43] Blind CFO Estimation for Constant Modulus Signaling Based OFDM Systems
Xu, Weiyang
Hong, Zhiliang
2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, 2010,
[44] Beam Squint and Channel Estimation for Wideband mmWave Massive MIMO-OFDM Systems
Wang, Bolei
Jian, Mengnan
Gao, Feifei
Li, Geoffrey Ye
Lin, Hai
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2019, 67 (23) : 5893 - 5908
[45] A New Method to Simultaneously Estimate TX/RX IQ Imbalance and Channel for OFDM Systems
Li, Yabo
Fan, Linlin
Lin, Hai
Zhao, Minjian
2013 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC), 2013, : 4551 - +
[46] Semi-Blind MIMO OFDM Systems with Precoding Aided CFO Estimation and ICA Based Equalization
Jiang, Yufei
Zhu, Xu
Lim, Eng Gee
Lin, Hai
Huang, Yi
2013 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM), 2013, : 3499 - 3503
[47] Combination of coarse symbol timing and carrier frequency offset (CFO) estimation techniques for MIMO OFDM systems
Huang, Chenyu
Misskey, William. J.
Toth, Joe
2006 CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING, VOLS 1-5, 2006, : 383 - +
[48] Joint Estimation of Transmitter and Receiver IQ Imbalance With ML Detection for Alamouti OFDM Systems
Marey, Mohamed
Samir, Moataz
Ahmed, Mohamed Hossam
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2013, 62 (06) : 2847 - 2853
[49] Joint equilibrium strategy for I/Q imbalance and CFO in MIMO OFDM system based on STBC
Zhao, Hai-Jun
Li, Min
Cui, Meng-Tian
Li, Ming-Dong
Tongxin Xuebao/Journal on Communications, 2013, 34 (11): : 51 - 58
[50] IQ Imbalance in Multiuser Systems: Channel Estimation and Compensation
Kolomvakis, Nikolaos
Matthaiou, Michail
Coldrey, Mikael
IEEE TRANSACTIONS ON COMMUNICATIONS, 2016, 64 (07) : 3039 - 3051

← 1 2 3 4 5 →