DocumentCode
2053315
Title
Cramer-Rao Bounds for SNR Estimates in Multicarrier Transmissions
Author
Bellili, Faouzi ; Stéphenne, Alex ; Affes, Sofiene
Author_Institution
INRS-EMT, Montreal, QC
fYear
2009
fDate
26-29 April 2009
Firstpage
1
Lastpage
5
Abstract
Considering orthogonal frequency division multiplexing (OFDM) transmissions, we derive analytical expressions for the Cramer-Rao bounds for the subcarrier signal-to-noise ratio (SNR) estimates. The channel coefficients of the different subcarriers are assumed to be constant over the observation interval and the received signal is assumed to be corrupted by additive white Gaussian noise (AWGN). We will show that exploiting the mutual information between the different tones improves the achievable performance of subcarrier SNR estimators.
Keywords
AWGN channels; OFDM modulation; AWGN channel; Cramer-Rao bounds; OFDM; additive white Gaussian noise channel; multicarrier transmissions; orthogonal frequency division multiplexing system; AWGN; Additive white noise; Bit rate; Frequency estimation; Mutual information; OFDM modulation; Parameter estimation; Signal analysis; Signal to noise ratio; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location
Barcelona
ISSN
1550-2252
Print_ISBN
978-1-4244-2517-4
Electronic_ISBN
1550-2252
Type
conf
DOI
10.1109/VETECS.2009.5073477
Filename
5073477
Link To Document