%0 Journal Article
%T Channel Estimation for SCM-OFDM Systems by Modified Kalman Filter
%A Tao Peng
%A Yue Xiao
%A Shaoqian Li
%A Huaqiang Shu
%A Eric Pierre Simon
%J Communications and Network
%P 666-670
%@ 1947-3826
%D 2013
%I Scientific Research Publishing
%R 10.4236/cn.2013.53B2119
%X <p>
	In this paper, the problem of channel estimation for <a></a>superposition coded modulation-orthogonal frequency
division multiplexing (SCM-OFDM) systems over frequency selective channels is
investigated. Assuming that the path delays are known, a new channel estimator
based on modified Kalman filter algorithms is introduced for the estimation of
the multipath Rayleigh channel complex gains (CG). In the simulation, the <a></a>mean square error (MSE) and <a></a>bit-error-rate
(BER) performances are given to verify the effectiveness of the <a></a>Kalman estimation algorithms for SCM-OFDM systems.
</p>
%K Superposition Coded Modulation (SCM)
%K Orthogonal Frequency Division Multiplexing (OFDM)
%K Channel Estimation
%K Kalman Filter
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=37698