Real world feasibility of interference alignment using MIMO-OFDM channel measurements

Authors:
Omar El Ayach;Steven W. Peters;Robert W. Heath, Jr.
Affiliations:
The University of Texas at Austin, Austin, Texas;The University of Texas at Austin, Austin, Texas;The University of Texas at Austin, Austin, Texas
Venue:
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Year:
2009

Citing 4
Cited 0

Interference alignment via alternating minimization

ICASSP '09 Proceedings of the 2009 IEEE International Conference on Acoustics, Speech and Signal Processing
On the trade-off between feedback and capacity in measured MU-MIMO channels

IEEE Transactions on Wireless Communications
Feasibility conditions for interference alignment

GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Interference Alignment and Degrees of Freedom of the -User Interference Channel

IEEE Transactions on Information Theory

Quantified Score

Hi-index	0.00

Visualization

Abstract

Interference alignment (IA) has been shown to achieve linear sum capacity growth, at high SNR, with the number of users in the interference channel by cooperatively precoding transmitted signals to align interference subspaces at the receivers. The theory of IA was derived under assumptions about the richness of the propagation channel; practical channels do not guarantee such ideal decorrelation. This paper presents the first experimental study of IA in measured interference channel and shows that IA achieves the claimed scaling factors in a variety of measured channel settings for a 3 user, 2 antennas per node setup.