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In this paper, blind channel estimation for Orthogonal Frequency-Division Multiplexing (OFDM) systems is considered. Based on a novel idea for biasing transmitted symbols, a simple estimation method is proposed. This method, which exploits first order statistics instead of higher orders, has a very simple structure that can be considered as the optimum solution in practical applications. The interesting...
Rician model is a stochastic channel model which is used for multipath propagation when line of sight (LOS) signal is much stronger than the other signals received from the other paths. In this paper we focus on Rician model of fading channel in Orthogonal Frequency Division Multiplexing (OFDM) systems and evaluate the effect of LOS signal on channel characterization. We show that LOS signal makes...
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