期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2015
卷号：4
期号：6
页码：2721-2724
出版社：Shri Pannalal Research Institute of Technolgy
摘要：The 21st Century is the new era of the Digital Communication and Wireless Technologies Revolution that surrounds our everyday lives, Wireless Communications Technologies has been undergoing some crucial changes innovative technologies and innovative products such as Wi-Fi, WiMax, IEEE 802.20, IEEE 802.22, Wireless Sensor Network, Mesh Network, Software Defined Radio, Cognitive Radio Network[8] Such Technology built with intelligent System. The proposed work contributes in this direction, aiming to develop Cognitive Radio System and to integrate developed learning algorithms into it. PSD Plot help us to distinguish allocated and unallocated frequency bands and also we evaluate performance of channel in presence of SNR and attenuation.
