Title :
Software implementation of spatial interweave cognitive radio communication using OpenAirInterface platform
Author :
Zayen, Bassem ; Kouassi, Boris ; Knopp, Raymond ; Kaltenberger, Florian ; Slock, Dirk ; Ghauri, Irfan ; Deneire, Luc
Author_Institution :
Mobile Commun. Dept., EURECOM, Sophia Antipolis, France
Abstract :
We present in this paper a software implementation of a cognitive radio (CR) communication based on long term evolution-time division duplex (LTE-TDD) channel reciprocity. We study the problem of calibration and beamforming design for a CR system in which a multiple-input single-output (MISO) secondary link, wants to opportunistically communicate without harming the primary SISO system. Specifically, we evaluate the CR communication through the EURECOM´s experimental OpenAirInterface (OAI) software platform. We will show that it is feasible to restore the reciprocity after calibration in a non reciprocal channel, and provide an overview of challenges in the channel estimation for real conditions.
Keywords :
Long Term Evolution; array signal processing; channel estimation; cognitive radio; telecommunication computing; time division multiplexing; CR communication; EURECOM; LTE-TDD channel reciprocity; Long Term Evolution-time division duplex channel reciprocity; MISO secondary link; OpenAirInterface platform; beamforming design; channel estimation; multiple-input single-output secondary link; nonreciprocal channel; primary SISO system; software implementation; spatial interweave cognitive radio communication; Antennas; Indexes; Lead; Message systems; Signal to noise ratio; Channel reciprocity; LTE-TDD; calibration techniques; cognitive radio; experimental platform; precoding;
Conference_Titel :
Wireless Communication Systems (ISWCS), 2012 International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4673-0761-1
Electronic_ISBN :
2154-0217
DOI :
10.1109/ISWCS.2012.6328398
