DocumentCode
3640837
Title
Experimental validation of Interference Alignment techniques using a multiuser MIMO testbed
Author
Ó. Gonzalez;D. Ramírez;I. Santamaria;J. A. García-Naya;L. Castedo
Author_Institution
Dept. of Communications Engineering, University of Cantabria, 39005 Santander, Spain
fYear
2011
Firstpage
1
Lastpage
8
Abstract
Hardware platforms and testbeds are an essential tool to evaluate, in realistic scenarios, the performance of wireless communications systems. In this work we present a multiuser Multiple-Input Multiple-Output (MIMO) testbed made up of 6 nodes, each one with 4 antennas, which allows us to evaluate Interference Alignment (IA) techniques in indoor scenarios. We specifically study the performance of IA for the 3-user interference channel in the 5GHz band. Our analysis identifies the main practical issues that potentially degrade the IA performance such as channel estimation errors or collinearity between the desired signal and interference subspaces.
Keywords
"Interference","MIMO","Channel estimation","Decoding","Receivers","Hardware","Radio frequency"
Publisher
ieee
Conference_Titel
Smart Antennas (WSA), 2011 International ITG Workshop on
Print_ISBN
978-1-61284-075-8
Type
conf
DOI
10.1109/WSA.2011.5741921
Filename
5741921
Link To Document