Orthogonal affine precoder design for jointly optimal channel estimation and symbol detection in MIMO-OFDM systems

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Conference Proceeding
ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings, 2007, pp. 983 - 988
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Affine precoding superimposes training signals on linearly precoded data. It enhances symbol recovery and effectively identifies the frequency-selective fading channel. Previous works have shown its advantage over the standard time-multiplexed training. This paper considers orthogonal affine precoding for joint channel estimation and symbol detection in wireless MIMO-OFDM systems. Analytical and numerical results confirm its ability to efficiently identify the unknown wireless channel as well as effectively recover the data symbols, while conserving the transmission bandwidth. © 2007 IEEE.
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