Title :
OFDM bandwidth estimation using Morlet´s wavelet decomposition
Author :
Kerherve, Eric ; Akmouche, Walter ; Quinquis, André
Author_Institution :
Ecole Nat. Superieure des Ingenieurs des Etudes et des Tech. d´´Armement, Brest, France
Abstract :
Bandwidth estimation is often an important problem to solve in the domain of spectrum survey or of synchronization. In this article, we propose an algorithm based on wavelet decomposition in order to estimate the bandwidth of an OFDM signal. We show that this kind of decomposition leads to good results and we provide some illustrating examples to show it. Actually by using “classical” wavelet decomposition (Morlet´s wavelet in our case), bandwidth is correctly estimated in 100% of the cases with an error lower than 8% until SNR=3 dB
Keywords :
OFDM modulation; parameter estimation; wavelet transforms; Morlet wavelet decomposition; OFDM bandwidth estimation; spectrum survey; synchronization; Bandwidth; Continuous wavelet transforms; Digital modulation; Digital video broadcasting; Error correction; Frequency shift keying; Internet; OFDM modulation; Pulse modulation; Quadrature amplitude modulation;
Conference_Titel :
EUROCOMM 2000. Information Systems for Enhanced Public Safety and Security. IEEE/AFCEA
Conference_Location :
Munich
Print_ISBN :
0-7803-6323-X
DOI :
10.1109/EURCOM.2000.874774
