Analysis of pilot decontamination based on power control

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Details zur Publikation

Autor(en): Cottatellucci L, Müller R, Vehkapera M
Jahr der Veröffentlichung: 2013
ISBN: 9781467363372


A subspace method for channel estimation is proposed for asymmetric antenna array systems. The so-called pilot contamination problem reported in [1] is found to be due to the linearity of channel estimation in [2]. We show that it does not occur in cellular systems with power control and power-controlled handoff when the nonlinear channel estimation method proposed in this paper is used. Power-control hand-off is needed to guarantee separability between signal and interference subspaces. We derive the transmission conditions for subspace separability based on free probability and perturbation theory. © 2013 IEEE.

FAU-Autoren / FAU-Herausgeber

Cottatellucci, Laura Prof. Dr.
Professur für Digitale Übertragung
Müller, Ralf Prof. Dr.-Ing.
Professur für Informationsübertragung

Autor(en) der externen Einrichtung(en)
Aalto University Espoo
NTNU Trondheim - Norwegian University of Science and Technology


Cottatellucci, L., Müller, R., & Vehkapera, M. (2013). Analysis of pilot decontamination based on power control. Dresden.

Cottatellucci, Laura, Ralf Müller, and Mikko Vehkapera. "Analysis of pilot decontamination based on power control." Proceedings of the 2013 IEEE 77th Vehicular Technology Conference, VTC Spring 2013, Dresden 2013.


Zuletzt aktualisiert 2018-14-10 um 21:50