2009 16th IEEE International Conference on Electronics, Circuits and Systems - (ICECS 2009) 2009
DOI: 10.1109/icecs.2009.5410891
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Improvement technique of channel estimation in OFDM-MIMO systems

Abstract: This paper presents an extra processing added to conventional LS estimation to improve its performances in OFDM-MIMO systems. The new technique is based on the knowledge of the power delay profile. The application of the improved estimator is useful when employing advanced MIMO adaptation techniques such switching algorithms and leads to significant improvement in decision criterion precision and consequently in terms of BER.

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(2 citation statements)
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“…In [30], we have developed an IFFT/FFT LS estimation channel method based only on the knowledge of the power delay profile of the channel. It consists of adding an extra IFFT/FFT processing to better estimate channel coefficients.…”
Section: Robust Channel Estimationmentioning
confidence: 99%
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“…In [30], we have developed an IFFT/FFT LS estimation channel method based only on the knowledge of the power delay profile of the channel. It consists of adding an extra IFFT/FFT processing to better estimate channel coefficients.…”
Section: Robust Channel Estimationmentioning
confidence: 99%
“…It consists of adding an extra IFFT/FFT processing to better estimate channel coefficients. This method is summarized according to the following steps [30]:  Apply the conventional LS estimator to determine a first approximation of channel frequency response coefficients.  Convert LS estimated coefficients into the time domain, using the IFFT transform.…”
Section: Robust Channel Estimationmentioning
confidence: 99%