Joint Estimation of CFO and Receiver I/Q Imbalance Using Virtual Subcarriers for OFDM Systems

被引：0

作者：

Chang, Chao-Wei ^{[1
]}

Chung, Yuan-Hwui ^{[1
]}

Phoong, See-May ^{[1
]}

Lin, Yuan-Pei ^{[2
]}

机构：

[1] Natl Taiwan Univ, Dept EE, Taipei 106, Taiwan

[2] Natl Chiao Tung Univ, Dept Elect & Comp Engn, Hsinchu, Taiwan

来源：

2012 IEEE 23RD INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC) | 2012年

关键词：

OFDM; CFO; I/Q Imbalance; Virtual Subcarrier; FREQUENCY OFFSET; COMPENSATION;

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 study the estimation of carrier frequency offset (CFO) in the presence of the receiver in-phase and quadrature-phase (I/Q) imbalance for orthogonal frequency division multiplexing (OFDM) systems. By minimizing the energy of the samples on the virtual subcarriers, our proposed algorithm can jointly estimate the CFO and I/Q parameters using one OFDM block. When the CFO is small, a closed-form solution can be obtained. Simulation results show that our proposed method can provide a good performance for both of the I/Q and CFO estimation and it compares favorably with a recent method.

引用

页码：2297 / 2302

页数：6

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