An Experimental Evaluation of Broadband Spatial IA for uncoordinated MIMO-OFDM Systems
J. Fanjul, C. Lameiro, I. Santamaría, J.A. García-Naya, L. Castedo, in: Proc. IEEE Int. Conf. Digital Signal Process., Singapore, 2015.
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Author
Fanjul, Jacobo;
Lameiro, Christian;
Santamaría, Ignacio;
García-Naya, Jose A.;
Castedo, Luis
Department
Abstract
In this paper we present an experimental study on the performance of spatial Interference Alignment (IA) in broadband indoor wireless local area network scenarios that use Orthogonal Frequency Division Multiplexing (OFDM) according to the IEEE 802.11a physical-layer specifications. Experiments have been carried out using a wireless network testbed made up of six nodes equipped with Multiple-Input Multiple-Output (MIMO) radio interfaces. This setup allows the implementation of a 3-user MIMO interference channel. We have implemented different IA decoding schemes that operate either before or after the Fast Fourier Transform block. IA has been experimentally evaluated comparing both approaches to analyze its performance in synchronous and asynchronous transmissions. Our results indicate that spatial IA performs satisfactorily in practical broadband indoor scenarios in which wireless channels often exhibit relatively large coherence times.
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Proc. IEEE Int. Conf. Digital Signal Process.
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Fanjul J, Lameiro C, Santamaría I, García-Naya JA, Castedo L. An Experimental Evaluation of Broadband Spatial IA for uncoordinated MIMO-OFDM Systems. In: Proc. IEEE Int. Conf. Digital Signal Process. ; 2015.
Fanjul, J., Lameiro, C., Santamaría, I., García-Naya, J. A., & Castedo, L. (2015). An Experimental Evaluation of Broadband Spatial IA for uncoordinated MIMO-OFDM Systems. Proc. IEEE Int. Conf. Digital Signal Process.
@inproceedings{Fanjul_Lameiro_Santamaría_García-Naya_Castedo_2015, place={Singapore}, title={An Experimental Evaluation of Broadband Spatial IA for uncoordinated MIMO-OFDM Systems}, booktitle={Proc. IEEE Int. Conf. Digital Signal Process.}, author={Fanjul, Jacobo and Lameiro, Christian and Santamaría, Ignacio and García-Naya, Jose A. and Castedo, Luis}, year={2015} }
Fanjul, Jacobo, Christian Lameiro, Ignacio Santamaría, Jose A. García-Naya, and Luis Castedo. “An Experimental Evaluation of Broadband Spatial IA for Uncoordinated MIMO-OFDM Systems.” In Proc. IEEE Int. Conf. Digital Signal Process. Singapore, 2015.
J. Fanjul, C. Lameiro, I. Santamaría, J. A. García-Naya, and L. Castedo, “An Experimental Evaluation of Broadband Spatial IA for uncoordinated MIMO-OFDM Systems,” 2015.
Fanjul, Jacobo, et al. “An Experimental Evaluation of Broadband Spatial IA for Uncoordinated MIMO-OFDM Systems.” Proc. IEEE Int. Conf. Digital Signal Process., 2015.
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