# MIMO-OFDM CHANNEL ESTIMATION - A Pilot Sequence Design for Time-domain Processing

### Carlos Ribeiro, Atílio Gameiro

#### 2008

#### Abstract

A pilot sequence design for MIMO-OFDM systems is investigated where all transmit antennas share the same sub-carriers to convey pilot symbols. The pilot sequences are endowed with phase-shifting properties, granting the receiver the possibility of extracting the impulse responses for all channels directly from the antennas’ time-domain received signals, without co-channel interference. A linear processing of the time-domain samples is all that is needed to get the channel impulse responses, resulting in an algorithm with very low computational load. The feasibility of the investigated method is substantiated by system simulation using indoor and outdoor broadband wireless channel models.

#### References

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#### Paper Citation

#### in Harvard Style

Ribeiro C. and Gameiro A. (2008). **MIMO-OFDM CHANNEL ESTIMATION - A Pilot Sequence Design for Time-domain Processing** . In *Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2008)* ISBN 978-989-8111-62-3, pages 163-170. DOI: 10.5220/0002026101630170

#### in Bibtex Style

@conference{winsys08,

author={Carlos Ribeiro and Atílio Gameiro},

title={MIMO-OFDM CHANNEL ESTIMATION - A Pilot Sequence Design for Time-domain Processing},

booktitle={Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2008)},

year={2008},

pages={163-170},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0002026101630170},

isbn={978-989-8111-62-3},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2008)

TI - MIMO-OFDM CHANNEL ESTIMATION - A Pilot Sequence Design for Time-domain Processing

SN - 978-989-8111-62-3

AU - Ribeiro C.

AU - Gameiro A.

PY - 2008

SP - 163

EP - 170

DO - 10.5220/0002026101630170