Cognitive Radio Networks: IEEE 802.22 Standards

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Author(s): Abhijeet Bishnu (Indian Institute of Technology Indore, India)and Vimal Bhatia (Indian Institute of Technology Indore, India)
Copyright: 2019
Pages: 24
Source title: Sensing Techniques for Next Generation Cognitive Radio Networks
Source Author(s)/Editor(s): Ashish Bagwari (Uttrakhand Technical University, India), Jyotshana Bagwari (Uttrakhand Technical University, India)and Geetam Singh Tomar (THDC Institute of Hydropower Engineering and Technology, India)
DOI: 10.4018/978-1-5225-5354-0.ch002

Keywords: Information Science Reference / Media & Communications / Networking and Telecommunications / Wireless Systems

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Abstract

Cognitive radio (CR) offers a novel way for effective usage of wireless spectrum by using dynamic spectrum sensing and allocation. One of the main components of CR is to find a spectrum hole for data transmission. Spectrum hole can be found by using spectrum sensing, a geolocation database, or by using a beacon signal. In this chapter, the authors describe algorithms for spectrum sensing in the presence of both additive white Gaussian and colored Gaussian noise. The algorithms include blind, non-blind, and cooperative sensing-based methods. The authors have compared the performance of various methods for IEEE 802.22 standard (which is the first standard incorporating CR).

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