Title :
A practical algorithm for CFO recovery in OFDM-based cognitive radio systems
Author :
Sanguinetti, Luca ; Morelli, Michele ; Imbarlina, Giuseppe
Author_Institution :
Dept. of Inf. Eng., Univ. of Pisa, Pisa, Italy
Abstract :
This work deals with the problem of carrier-frequency offset estimation in orthogonal frequency-division multiplexing-based cognitive radio systems. In particular, we propose an iterative algorithm which provides frequency estimates in closed form without involving any computationally demanding grid-search. Computer simulations are used to assess the effectiveness of the proposed solution and to make comparisons with existing alternatives.
Keywords :
OFDM modulation; cognitive radio; frequency estimation; iterative methods; carrier-frequency offset estimation; cognitive radio system; computer simulation; iterative algorithm; orthogonal frequency-division multiplexing; Cognitive radio; Computer simulation; Discrete Fourier transforms; Frequency division multiplexing; Frequency estimation; Grid computing; Interference; Iterative algorithms; OFDM; Wireless LAN;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2009. SPAWC '09. IEEE 10th Workshop on
Conference_Location :
Perugia
Print_ISBN :
978-1-4244-3695-8
Electronic_ISBN :
978-1-4244-3696-5
DOI :
10.1109/SPAWC.2009.5161859
