DFT Modulated Filter Bank Transceivers for Interweave and Underlay Cognitive Radio
Seiten
2018
Kassel University Press (Verlag)
978-3-7376-0470-3 (ISBN)
Kassel University Press (Verlag)
978-3-7376-0470-3 (ISBN)
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DFT modulated filter banks for non-orthogonal multicarrier transmission are considered a strong tool to implement both dynamic spectrum access and spectrum sensing in cognitive radio systems where signaling schemes have to meet different objectives. A constrained optimization approach is presented to design a cognitive radio transceiver which can be tailored to system specifications with a reasonable trade-off between performance and implementation efficiency. In interweave cognitive radio, the secondary user receiver is synchronized in time and frequency by designing a synthesis filter bank preamble with periodic symbols in analogy to short training fields in IEEE 802.11a. A simple post-detection integration at the secondary user receiver is employed for differently coherent detection. In underlay cognitive radio, a novel transmission scheme for secondary user power adaptation is proposed aiming to minimize the secondary user average probability of error for bit-interleaved coded modulation. The powers of the subcarrier signals are adapted subject to total power and stochastic chance-based interference constraints in order to provide a confidence level for limiting the interference at the licensed primary user receiver.
Erscheinungsdatum | 20.03.2018 |
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Verlagsort | Kassel |
Sprache | englisch |
Maße | 148 x 210 mm |
Gewicht | 270 g |
Themenwelt | Technik ► Elektrotechnik / Energietechnik |
Schlagworte | Adaptive Transmission • Channel Estimation • Filter Bank • Post Detection Integration • Sage • Spectrum access • Stochastic Chance-Constrained Optimization • Synchronization • Underlay Cognitive Radio |
ISBN-10 | 3-7376-0470-3 / 3737604703 |
ISBN-13 | 978-3-7376-0470-3 / 9783737604703 |
Zustand | Neuware |
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