Fundamentals of statistical signal processing: estimation theory
Fundamentals of statistical signal processing: estimation theory
RF microelectronics
Adaptive Filters
Compensation schemes and performance analysis of IQ imbalances in OFDM receivers
IEEE Transactions on Signal Processing - Part II
Advanced methods for I/Q imbalance compensation in communicationreceivers
IEEE Transactions on Signal Processing
Compensation of Phase Noise in OFDM Wireless Systems
IEEE Transactions on Signal Processing
Joint estimation of channel response, frequency offset, and phase noise in OFDM
IEEE Transactions on Signal Processing
Compensation of IQ imbalance and phase noise in OFDM systems
IEEE Transactions on Wireless Communications
A novel IQ imbalance compensation scheme for the reception of OFDM signals
IEEE Transactions on Consumer Electronics
Influence of RF oscillators on an OFDM signal
IEEE Transactions on Consumer Electronics
I/Q imbalance compensation and channel equalization in OFDM receivers
ICNVS'10 Proceedings of the 12th international conference on Networking, VLSI and signal processing
IEEE Transactions on Wireless Communications
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Physical impairments like IQ imbalance and phase noise can cause significant degradation in the performance of wireless communication systems. In this paper, the joint effects of IQ imbalance and phase noise on OFDM systems are analyzed, and a compensation scheme is proposed to improve the system performance in the presence of IQ imbalance and phase noise. The scheme consists of a joint estimation of channel and impairment parameters and a joint data symbol estimation algorithm. It is shown both by theory and computer simulations that the proposed scheme can effectively improve the signal-to-noise ratio at the receiver. As a result, the sensitivity of OFDM receivers to the physical impairments can be significantly lowered, simplifying the RF and analog circuitry design in terms of implementation cost, power consumption, and silicon fabrication yield.