Digital Baseband Compensation of Frequency-Dependent Joint TX/RX I/Q Imbalance in Beamforming MIMO OFDM Transceivers

被引：0
|
作者：
Oezdemir, Oezgur [1 ]
Hamila, Ridha [1 ]
Al-Dhahir, Naofal
机构：
[1] Qatar Univ, Dept Elect Engn, Doha, Qatar
来源：
2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2012年
关键词：
Beamforming; MIMO; OFDM; I/Q Imbalance; IQ IMBALANCES; RECEIVERS; SYSTEMS;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper, we investigate the effects of asymmetric frequency-dependent joint transmit-receive I/Q imbalance on the performance of beamforming MIMO-OFDM systems. We derive the throughput-maximizing transmit/receive beamforming coefficients taking into account I/Q imbalance effects. In addition, we propose a low-complexity pilot-aided scheme for the estimation of the channel and I/Q imbalance parameters. Our simulation results demonstrate the effectiveness of the proposed generalized beamforming scheme in mitigating I/Q imbalance effects.
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页数：5
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