Title :
Dynamic spectral shaping in LTE-Advanced cognitive radio systems
Author :
Joshi, D.R. ; Popescu, Dimitrie C. ; Dobre, Octavia A.
Author_Institution :
ECE Dept., Old Dominion Univ., Norfolk, VA, USA
Abstract :
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.
Keywords :
Long Term Evolution; OFDM modulation; cognitive radio; numerical analysis; precoding; CR system; LTE-A standard; LTE-Advanced cognitive radio systems; OFDM precoder adaptation; OFDM signal; dynamic spectral shaping; frequency spectrum; numerical simulations; physical layer; Bandwidth; Cognitive radio; Downlink; Heuristic algorithms; Interference; OFDM; Uplink; Cognitive radio; OFDM; spectral shaping;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2013 IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-2929-3
Electronic_ISBN :
2164-2958
DOI :
10.1109/RWS.2013.6486627
