Compensation of Transmitter I/Q Imbalance in Millimeter-Wave SC-FDE Systems

Due to imperfect analog processing, millimeter-wave communication is confronted with severe radio frequency impairments, such as in-phase/quadrature (IQ) imbalance. The presence of I/Q imbalance introduces image interference to the desired signal and can significantly degrade the performance if not compensated. In this paper, the authors propose a novel training-based compensation method for transmitter (TX) I/Q imbalance in millimeter-wave single carrier with frequency domain equalization (SC-FDE) systems. The novelty of the proposed method is that it can obtain the separate estimates of the TX I/Q imbalance and multipath channel. With the obtained estimates, the authors can easily conduct the FDE and compensate for the TX I/Q imbalance by simple operations. Simulations show that the proposed method can accurately estimate the TX I/Q imbalance and multipath channel and, thus, can achieve almost the same performance as the ideal case free of TX I/Q imbalance.

Record URL:
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00189545
Supplemental Notes:
- Copyright © 2017, IEEE.
Authors:
- Cheng, Xiantao
- Luo, Zengqiang
Publication Date: 2017-5

Language

English

Media Info

Media Type: Web
Features: Figures; References;
Pagination: pp 4472-4476
Serial:
- IEEE Transactions on Vehicular Technology
- Volume: 66
- Issue Number: 5
- Publisher: Institute of Electrical and Electronics Engineers (IEEE)
- ISSN: 0018-9545
- Serial URL: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=25

Subject/Index Terms

TRT Terms: Frequency domain analysis; Millimeter wave communication systems; Radio frequency; Radio transmitters; Wireless communication systems
Subject Areas: Data and Information Technology; Transportation (General);

Filing Info

Accession Number: 01638393
Record Type: Publication
Files: TRIS
Created Date: May 18 2017 1:51PM