Joint Estimation and Compensation of Frequency-Selective IIQ Imbalance Using Loop-Back Method in OFDM Systems

被引：0
|
作者：
Zuo, Gang [1 ]
He, Shiwen [1 ]
Wang, Haiming [1 ]
Hong, Wei [1 ]
机构：
[1] Southeast Univ, State Key Lab Millimeter Waves, 2 Sipailou, Nanjing 210096, Jiangsu, Peoples R China
来源：
2015 IEEE 6TH INTERNATIONAL SYMPOSIUM ON MICROWAVE, ANTENNA, PROPAGATION, AND EMC TECHNOLOGIES (MAPE) | 2015年
基金：
中国国家自然科学基金;
关键词：
I/Q imbalance; frequency-selective; loop-back OFDM; I/Q IMBALANCE; CALIBRATION;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Analog front-ends for wide-band wireless communication systems exhibit frequency-selective inphase and quadrature (I/Q) imbalance due to asymmetry in devices and layouts. This imbalance leads to a significant degradation of the performance in orthogonal frequency division multiplexing (OFDM) systems. In this paper, using a loop-back method, a joint transmitter (TX) and receiver (RX) estimation and compensation algorithm is proposed to estimate and compensate frequency-selective I/Q imbalance. Simulation results show that the proposed algorithm can effectively eliminate the influence of frequency-selective I/Q imbalance with a very low complexity.
引用
收藏
页码：308 / 312
页数：5
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