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Dynamic spectral shaping in LTE-Advanced cognitive radio systems

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3 Author(s)
Deepak R. Joshi ; ECE Department, Old Dominion University, Norfolk, Virginia, USA ; Dimitrie C. Popescu ; Octavia A. Dobre

In this paper, we consider a CR system that uses the LTE-Advanced (LTE-A) standard at the physical layer, and present an algorithm for shaping the spectrum of the corresponding OFDM signal that enables secondary access to the frequency spectrum in dynamic scenarios. The proposed algorithm is based on OFDM precoder adaptation and is illustrated with numerical results obtained from simulations.

Published in:

2013 IEEE Radio and Wireless Symposium

Date of Conference:

20-23 Jan. 2013