A superimposed periodic pilot scheme for semi-blind channel estimation of OFDM systems
@article{Chen2002ASP, title={A superimposed periodic pilot scheme for semi-blind channel estimation of OFDM systems}, author={Ning Chen and Guotong Zhou}, journal={Proceedings of 2002 IEEE 10th Digital Signal Processing Workshop, 2002 and the 2nd Signal Processing Education Workshop.}, year={2002}, pages={362-365} }
An attractive feature of the Orthogonal Frequency Division Multiplexing (OFDM) system is its simple one-tap equalizer for linear channel distortions. Nevertheless, one still has to address the channel estimation issue. In mobile environments, self-recovery methods that avoid any recurring training overhead are of interest. In this paper, we propose a superimposed pilot scheme employing only a first-order statistic to identify the channel for OFDM systenis. It can be regarded as a semi-blind…Â
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