7Architectures and Protocols for Next-Generation Cognitive Networking

R. Ganesh Babu1*, V. Amudha2 and P. Karthika3

1 Department of Electronics and Communication Engineering, SRM TRP Engineering College, Tamil Nadu, India

2 Department of Electronics and Communication Engineering, Saveetha School of Engineering, Tamil Nadu, India

3 Kalasalingam Academy of Research and Education, Tamil Nadu, India

Abstract

Cognitive Radio (CR) supports more software flexibility and affordability features than other radio classes. CR is a radio with intelligence for spectrum sensing, spectrum sharing, and spectrum management with self-aware capability. It can learn and sense the environment to detect the operating conditions and reconfigure its own characteristics to provide the best suitable conditions for secondary communication.The quality of transmission is based on their type of modulation, frequency, and power. If there is any interference occurring in the cognitive radio network, it can automatically adjust to provide the best suitable conditions for data rate, power, and frequency. The key advantage of the cognitive radio network is self-awareness. The process of dynamically accessing the unused spectral bands (spectrum holes/white spaces) is known as Dynamic Spectrum Access (DSA). Better spectrum communication of the xG network is maintained without spectrum space, by allowing CR to operate any one of the best available spectrum band. If primary communication occurs in channel sensing ...

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