Multicarrier Spread Spectrum Modulation Schemes and Efficient FFT Algorithms for Cognitive Radio Systems
Spread spectrum (SS) and multicarrier modulation (MCM) techniques are recognized as potential candidates for the design of underlay and interweave cognitive radio (CR) systems, respectively. Direct Sequence Code Division Multiple Access (DS-CDMA) is a spread spectrum technique generally used in und...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2014-07-01
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Series: | Electronics |
Subjects: | |
Online Access: | http://www.mdpi.com/2079-9292/3/3/419 |