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IEICE TRANSACTIONS on Communications

I/Q Imbalance Compensation Using Null-Carriers in OFDM Direct-Conversion Receiver

Junghwa BAE, Jinwoo PARK

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Summary :

This letter proposes a compensation method that can alleviate the problem of I/Q mismatch generated in the direct-conversion receiver of OFDM systems. In the proposed method, the amount of I/Q mismatch is estimated using null-carriers in transmitted signals, and it is subtracted from received symbols to suppress I/Q mismatch effects. Simulations show experiments that the proposed method can effectively eliminate the I/Q mismatch effects.

Publication
IEICE TRANSACTIONS on Communications Vol.E89-B No.8 pp.2257-2260
Publication Date
2006/08/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e89-b.8.2257
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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