What channel does the secondary user use in underlay cognitive radio communications?

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Djamel Teguig

dear sir

You will get the answer of your question in details by reading this article:

http://www.diva-portal.org/smash/get/diva2:564992/FULLTEXT01.pdf

Best regards

Shahriar Shirvani moghaddam

These secondary users can use wideband channel with limited power such as spread spectrum (CDMA) or bluetooth in current systems. They experience low transmit power and hence they add low interference for primary users.

sreenivas preetham reddy Chiramana

thank you for sharing your intelligence