TY - GEN

T1 - Modal analysis/filtering to estimate time-varying MIMO-OFDM channels

AU - Cicerone, Marcello

AU - Simeone, Osvaldo

AU - Geng, Norbert

AU - Spagnolini, Umberto

PY - 2004/12/1

Y1 - 2004/12/1

N2 - In the multipath multiple-input multiple-output (MIMO) channel, long-term/large-scale properties (e.g., delays, angles, powers) remain approximately constant over many coherence times (i.e., over many Doppler periods) and define the structural terms of the propagation channel referred as delay (powers and delays) and angular (powers and angles of departure and arrival) modes of the channel. Effective improvement of the channel estimate is obtained by estimating delay and angular modal spaces via modal analysis and by filtering the (original) least squares channel estimates as projection onto the modal spaces. The paper also provides experimental validation of the overall method with realistic channel models.

AB - In the multipath multiple-input multiple-output (MIMO) channel, long-term/large-scale properties (e.g., delays, angles, powers) remain approximately constant over many coherence times (i.e., over many Doppler periods) and define the structural terms of the propagation channel referred as delay (powers and delays) and angular (powers and angles of departure and arrival) modes of the channel. Effective improvement of the channel estimate is obtained by estimating delay and angular modal spaces via modal analysis and by filtering the (original) least squares channel estimates as projection onto the modal spaces. The paper also provides experimental validation of the overall method with realistic channel models.

UR - http://www.scopus.com/inward/record.url?scp=11244255211&partnerID=8YFLogxK

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M3 - Conference contribution

AN - SCOPUS:11244255211

SN - 0780383273

SN - 9780780383272

T3 - 2004 ITG Workshop on Smart Antennas - Proceedings

SP - 35

EP - 40

BT - 2004 ITG Workshop on Smart Antennas - Proceedings

T2 - 2004 ITG Workshop on Smart Antennas - Proceedings

Y2 - 18 March 2004 through 19 March 2004

ER -