Measurement Based Evaluation of Interference Alignment on the Vienna MIMO Testbed
Conference: ISWCS 2013 - The Tenth International Symposium on Wireless Communication Systems
08/27/2013 - 08/30/2013 at Ilmenau, Deutschland
Proceedings: ISWCS 2013
Pages: 5Language: englishTyp: PDF
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Authors:
Mayer, Martin; Artner, Gerald; Hannak, Gabor; Lerch, Martin; Guillaud, Maxime (Institute of Telecommunications, Vienna University of Technology, Austria, Gusshausstrasse 25/389, A-1040 Vienna, Austria)
Abstract:
Interference Alignment (IA) is a linear precoding scheme for the K-user interference channel with high signal to noise ratio. Ideally, interference is completely suppressed and each user is able to achieve half of the single-user multiple-input multiple-output (MIMO) degrees of freedom. We use the Vienna MIMO testbed to evaluate the feasibility of IA in realtime1, in a heterogeneous outdoor to indoor and indoor to indoor scenario representative of an urban scenario. We evaluate the accuracy of alignment and provide benchmarks for typical delays in such a setup.