Spectrum Efficiency Maximization in Cognitive Radio Systems: The Optimal Radio Resource Allocation Algorithms Design in Multiban,Used

Spectrum Efficiency Maximization in Cognitive Radio Systems: The Optimal Radio Resource Allocation Algorithms Design in Multiban,Used

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In the field of cognitive radio, Spectrum Efficiency Maximization in Cognitive Radio Systems makes excellent dynamic radio resource allocation algorithm design for the professional. Based on the lowpower multiband Orthogonal Frequency Division Multiplexing (OFDM) Ultra Wideband (UWB) system, the book gives a comprehensive and indepth analysis in the technologies of UWB and Cognitive Radio, formulates the spectrum efficiency maximization problem into a multidimensional multiknapsack problem, and provides a solution to the optimization problem by creating three novel lowcomplexity algorithms for spectrum sensing and spectrum management. Simulations and mathematical analysis show that the new algorithms significantly increase the spectrum efficiency of the lowpower UWBbased cognitive radio system with very low cost compared with the conventional radio resource allocation algorithms, such as waterfilling and HughesHartogs algorithm. The book provides a solid foundation for the future study in largeextent and highdensity multiuser cognitive radio networks, which can fully explore the benefits of cognitive radio technology.

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