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I/Q imbalance and carrier frequency offset (CFO) are two typical radio frequency (RF) circuit analog impairments in wireless communication systems, and degrade the system performance severely. In this paper, we propose a novel Kalman filtering based compensation scheme for I/Q imbalance and CFO in time-varying MIMO OFDM systems. To circumvent CFO and track time variations of wireless communication...
In this paper, we propose the application of two blind channel estimation algorithms namely the subspace approach and the autocorrelation contribution method (ACM) algorithm for multiple input multiple output (MIMO) single-carrier CDMA (SC-CDMA) block transmission systems in the quasi- synchronous uplink scenario. Using only second order statistics, the ACM approach shows similar performance to that...
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