Channel Estimation for Space-Time Block Coded OFDM Systems using Few Received Symbols

Biling Zhang, Yipu Yuan, Jung-Lang Yu, Wei-Ting Hsu, Yu-Jie Huang

2017

Abstract

A novel subspace channel estimation is proposed for space-time block coded (STBC) multiple-input multiple–output (MIMO) orthogonal frequency division multiplexing (OFDM) systems. Considering the zero-padding technique, the signal model of the STBC-OFDM system is first studied. The major drawback of the subspace method is the slow convergence which requires a large number of received symbols to compute the noise subspace. The repetition index scheme is developed here to increase the number of equivalent received symbols. Using the space-time coding property, the forward-backward method is presented to improve the convergence speed further. Moreover, the repetition index scheme transforms the white noise into non-white one. The noise prewhitening technique is proposed to reduce the non-white noise effect. Computer simulations show the effectiveness of the proposed forward-backward method and noise prewhitening technique.

Paper Citation

in Harvard Style

Zhang B., Yuan Y., Yu J., Hsu W. and Huang Y. (2017). Channel Estimation for Space-Time Block Coded OFDM Systems using Few Received Symbols . In Proceedings of the 7th International Joint Conference on Pervasive and Embedded Computing and Communication Systems - Volume 1: SPCS, (PECCS 2017) ISBN 978-989-758-266-0, pages 87-92. DOI: 10.5220/0006381700870092

in Bibtex Style

@conference{spcs17,
author={Biling Zhang and Yipu Yuan and Jung-Lang Yu and Wei-Ting Hsu and Yu-Jie Huang},
title={Channel Estimation for Space-Time Block Coded OFDM Systems using Few Received Symbols},
booktitle={Proceedings of the 7th International Joint Conference on Pervasive and Embedded Computing and Communication Systems - Volume 1: SPCS, (PECCS 2017)},
year={2017},
pages={87-92},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006381700870092},
isbn={978-989-758-266-0},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 7th International Joint Conference on Pervasive and Embedded Computing and Communication Systems - Volume 1: SPCS, (PECCS 2017)
TI - Channel Estimation for Space-Time Block Coded OFDM Systems using Few Received Symbols
SN - 978-989-758-266-0
AU - Zhang B.
AU - Yuan Y.
AU - Yu J.
AU - Hsu W.
AU - Huang Y.
PY - 2017
SP - 87
EP - 92
DO - 10.5220/0006381700870092