GEDOMIS: a broadband wireless MIMO-OFDM testbed, design and implementation

Xavier  Nieto; Lluıs M.  Ventura; Antonio Mollfulleda

2nd International IEEE/Create-Net Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities

Research Article

GEDOMIS: a broadband wireless MIMO-OFDM testbed, design and implementation

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/TRIDNT.2006.1649135,
    author={Xavier  Nieto and Lluıs M.  Ventura and Antonio Mollfulleda},
    title={GEDOMIS: a broadband wireless MIMO-OFDM testbed, design and implementation},
    proceedings={2nd International IEEE/Create-Net Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities},
    publisher={IEEE},
    proceedings_a={TRIDENTCOM},
    year={2006},
    month={7},
    keywords={},
    doi={10.1109/TRIDNT.2006.1649135}
}

Xavier Nieto
Lluıs M. Ventura
Antonio Mollfulleda
Year: 2006
GEDOMIS: a broadband wireless MIMO-OFDM testbed, design and implementation
TRIDENTCOM
IEEE
DOI: 10.1109/TRIDNT.2006.1649135

Xavier Nieto¹^,*, Lluıs M. Ventura¹^,*, Antonio Mollfulleda¹^,*

1: Centre Tecnologic de Telecomunicacions de Catalunya (CTTC), Parc Mediterrani de la Tecnologia (PMT), Av. del Canal Olımpic s/n, 08860 Castelldefels (Barcelona), Spain

*Contact email: xavier.nieto@cttc.es, lluis.ventura@cttc.es, antonio.mollfulleda@cttc.es

Abstract

We present an experimental broadband wireless 4times4 multiple-input multiple-output (MIMO) OFDM system operating at two well-known WLAN frequency bands: 2.4 GHz and 5.2 GHz. The demonstrator is described placing special emphasis, both at the RF and DSP levels, on the design of a reconfigurable hardware architecture. In the RF section, a new scheme for the design of custom, area-efficient multi-antenna multiband radios is presented. At the DSP level, we describe the synchronization and channel estimation algorithms that may be used in scenarios with multiple transmit antennas. These algorithms take advantage of the cyclic delay diversity (CDD) mechanisms that are currently being proposed for the new IEEE 802.11n standard.

Published: 2006-07-05
Publisher: IEEE

: http://dx.doi.org/10.1109/TRIDNT.2006.1649135