Modulation Schemes for Cognitive Radio in White Spaces
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Date
2010-12
Authors
Kollar, Zsolt
Horvath, Peter
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
In this paper we give an overview and a comparison of the possible waveforms for white space applications. Four physical layer schemes for cognitive radio are selected for study: Orthogonal Frequency Division Multiplexing (OFDM), DFT-Spread OFDM (DFTS-OFDM), Constant Envelope OFDM (CE-OFDM) and Filter Bank Multicarrier (FBMC). The comparison is mainly based on the side effects of various non-ideal analog components (power amplifier, local oscillator) and residual synchronization errors such as frequency offset. As we will show, each technique has different sensitivity to the various impairments. The comparisons will be performed via spectral density functions and bit error rates (BER).
Description
Citation
Radioengineering. 2010, vol. 19, č. 4, s. 511-517. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2010/10_04_511_517.pdf
http://www.radioeng.cz/fulltexts/2010/10_04_511_517.pdf
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en