Research Article
Sensing UMTS Bands Using Cyclostationary Features and Cooperation Between Opportunistic Terminal
@INPROCEEDINGS{10.1109/CROWNCOM.2008.4562557, author={Paulo Marques and Joaquim Bastos and Atilio Gameiro}, title={Sensing UMTS Bands Using Cyclostationary Features and Cooperation Between Opportunistic Terminal}, proceedings={3rd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2008}, month={7}, keywords={Opportunistic Radio Cognitive Radio Cyclostationarity Cooperative Sensing UMTS Signals Sensing}, doi={10.1109/CROWNCOM.2008.4562557} }- Paulo Marques
Joaquim Bastos
Atilio Gameiro
Year: 2008
Sensing UMTS Bands Using Cyclostationary Features and Cooperation Between Opportunistic Terminal
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2008.4562557
Abstract
The Opportunistic Radio (OR) concept relies on the cognitive features of the OR terminals, namely the ability to adapt its transmitter parameters, based upon interaction with the RF environment in which it operates. An OR system operates in licensed frequency bands, exploiting opportunities and operating with a lower priority regarding the licensed system, implementing a spectrum pool mechanism. The most important constraint is that the OR network should always avoid harmful interference with the licensed system, therefore it should reliably detect licensed signals in the used band in order to avoid interfering with the licensed owner of that band. Given the importance of UMTS systems in current wireless communications, this paper is focused on 3G bands and addresses the problem of sensing weak UMTS signals. The proposed sensing algorithm exploits the cyclostationary features of UMTS signals and the cooperation between multiple OR terminals clustered in the OR network.