Spline based channel estimation for STBC-SM systems over fast-varying rician fading channels

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Date

2015

Authors

Acar, Y.
Doğan, H.
Panayırcı, Erdal

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Publisher

Institute of Electrical and Electronics Engineers Inc.

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Abstract

In the STBC-SM systems, the information is carried both by STBC symbols and indices of the transmit antennas from which these symbols are transmitted. Channel estimation is a critical process at the receiver during the coherent detection of the transmitted STBC symbols and indices of the transmit antennas. In this paper, a spline interpolation and pilot symbols based channel estimation has been proposed for the space-time block coded spatial modulation (STBC-SM) systems to track the channel variations in the presence of Rician fading channels. The estimation of channel at pilot durations is done by least squares (LS) method and then the spline based channel interpolation is performed. It has been shown via computer simulations that the proposed spline based channel estimation channel estimation outperforms the piecewise linear interpolation (PLI) and the nearest neighbor interpolation (NNI) based channel estimations. © 2015 IEEE.

Description

2015 23rd Signal Processing and Communications Applications Conference, SIU 2015 --16 May 2015 through 19 May 2015 -- --113052

Keywords

MIMO, Pilot Symbol Assisted Channel Estimation, Spatial Modulation, STBC, Time Varying Rician Fading Channels, Antennas, Fading channels, Interpolation, Least squares approximations, MIMO systems, Modulation, Piecewise linear techniques, Space time codes, Space-time block coding (STBC), Least squares methods, Nearest neighbor interpolation, Piecewise linear interpolations, Pilot symbol assisted, Rician fading channel, Space-time block coded, Spatial modulations, STBC, Channel estimation

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Citation

5

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N/A

Scopus Q

N/A

Source

2015 23rd Signal Processing and Communications Applications Conference, SIU 2015 - Proceedings

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Issue

Start Page

188

End Page

191