Implementation of an adaptive OFDMA PHY/MAC on USRP platforms for a cognitive tactical radio network

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Abstract

Cognitive radio is envisioned to solve the problem of spectrum scarcity in military networks and to autonomously adapt to rapidly changing radio environment conditions and user needs. Dynamic spectrum management techniques are needed for the coexistence of multiple cognitive tactical radio networks. Previous work has investigated the iterative waterfilling algorithm (IWFA) as a possible candidate to improve the coexistence of such networks. It has been shown that adding a constraint on the number of transmitter's sub-channels improves the convergence of IWFA. In this paper, we propose an adaptive orthogonal frequency division multiple access (OFDMA) physical (PHY) and medium access control (MAC) for the coexistence of multiple cognitive tactical radio networks. The proposed scheme is implemented on universal software radio peripheral (USRP) platforms using Qt4/IT++ and the USRP hardware driver (UHD) application programming interface (API).

Original languageEnglish
Title of host publication2012 Military Communications and Information Systems Conference, MCC 2012
Pages189-195
Number of pages7
Publication statusPublished - 2012
Event2012 Military Communications and Information Systems Conference, MCC 2012 - Gdansk, Poland
Duration: 8 Oct 20129 Oct 2012

Publication series

Name2012 Military Communications and Information Systems Conference, MCC 2012

Conference

Conference2012 Military Communications and Information Systems Conference, MCC 2012
Country/TerritoryPoland
CityGdansk
Period8/10/129/10/12

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