A Detection Method for an OFDM Signal Distorted by IQ Imbalance

Kyung Won PARK
Yong Soo CHO

Publication
IEICE TRANSACTIONS on Communications   Vol.E89-B    No.3    pp.1016-1019
Publication Date: 2006/03/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.3.1016
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDM,  IQ imbalance,  signal detection,  

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Summary: 
In this letter, we propose a new detection method for an OFDM signal distorted by IQ imbalance, and a pilot pattern to estimate the channel associated with IQ imbalance. It is shown by computer simulation that the proposed method can achieve robust detection even when severe IQ imbalance exists in OFDM systems with an input of higher-order constellation.