IQ Imbalance and Phase Noise Mitigation for Wireless OFDM Systems
Journal
IEEE International Symposium on Circuits and Systems
Pages
2482-2485
Date Issued
2008-05
Author(s)
Abstract
OFDM systems suffer severe performance degradation in the presence of IQ imbalance and phase noise. This paper provides a new IQ imbalance estimation scheme that works under phase noise effect and multi-path channel with large delay spread. Furthermore, the proposed method can suppress the interference from neighboring subcarriers caused by phase noise. The proposed scheme significantly mitigates analog front-end impairments and eases their specifications, which in turn lowers the cost of OFDM transceivers.
SDGs
Type
conference paper