A practical method for wireless channel reciprocity exploitation through relative calibration

Guillaud, Maxime;Slock, Dirk T M;Knopp, Raymond
ISSPA 2005, 8th International Symposium on Signal Processing and Its Applications, August 29-September 1, 2005, Sydney, Australia

We present a relative calibration method for a wireless TDD link, which, after a calibration phase involving feedback, lets the transmitter acquire knowledge of the downlink channel state from the uplink channel estimates, through proper modeling and estimation of the RF circuitry impulse responses. Contrarily to previous methods, relative calibration does not require specific calibration hardware. Experimental results confirm the validity of the proposed linear reciprocity model, and of the calibration approach.


DOI
Type:
Conférence
City:
Sydney
Date:
2005-08-29
Department:
Systèmes de Communication
Eurecom Ref:
1676
Copyright:
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PERMALINK : https://www.eurecom.fr/publication/1676