Analysis of pilot decontamination based on power control
Cottatellucci L, Müller R, Vehkapera M (2013)
Publication Status: Published
Publication Type: Conference contribution, Conference Contribution
Publication year: 2013
Article Number: 6691891
Event location: Dresden
ISBN: 9781467363372
DOI: 10.1109/VTCSpring.2013.6691891
Abstract
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.
Authors with CRIS profile
Laura Cottatellucci
Professur für Digitale Übertragung
Ralf Müller
Professur für Informationsübertragung
Involved external institutions
Finland (FI)How to cite
APA:
Cottatellucci, L., Müller, R., & Vehkapera, M. (2013). Analysis of pilot decontamination based on power control. In Proceedings of the 2013 IEEE 77th Vehicular Technology Conference, VTC Spring 2013. Dresden.
MLA:
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.
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