IEICE Communications Express
Online ISSN : 2187-0136
ISSN-L : 2187-0136
A simple channel tracking scheme using deductive combining for MIMO-OFDM WLANs
Yusuke AsaiJun MashinoTakatoshi SugiyamaMasaaki Katayama
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2017 Volume 6 Issue 7 Pages 429-434

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Abstract

This letter proposes a simple tracking scheme for time-varying channels of IEEE 802.11 based MIMO-OFDM wireless LANs. The scheme combines a tentative channel estimate derived from a transmitted symbol replica with the channel estimate used to generate the replica. The propose scheme requires no prior knowledge on the statistics of the channel and instead uses a deductive approach to calculate weights to combine the channel estimates. The numerical results show the proposed scheme performs 1.0 dB CNR gain at FER of 10−2 over the conventional scheme for 3 × 3 MIMO and 64QAM when receiver velocity is 4 km/h.

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© 2017 The Institute of Electronics, Information and Communication Engineers
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