DocumentCode :
3433069
Title :
Modulation-independent non-data-aided SNR estimator for OFDM signals in Nakagami fading channels
Author :
Hafez, Mohammed ; Khattab, Tamer ; Shalaby, Hossam
Author_Institution :
Dept. of Electr. Eng., Qatar Univ., Doha, Qatar
fYear :
2013
fDate :
27-29 Aug. 2013
Firstpage :
6
Lastpage :
9
Abstract :
A signal-to-noise ratio estimator for OFDM signals in Nakagami-m fading channels is proposed. This estimator can be used with any signal constellation. It is an envelope-based non-data-aided estimator that makes use of statistical-moments of the received OFDM signals to get an estimate of the SNR in time domain. A mathematical derivation of the estimator is given and two main performance measures are evaluated, namely, the bias and the mean-squared-error. Our results reveal that this estimator works better in severe fading cases and has a good performance with low bias and low variance in the range of concern for communication systems.
Keywords :
Nakagami channels; OFDM modulation; mean square error methods; signal processing; statistical analysis; MSE; Nakagami-m fading channels; OFDM signals; communication systems; envelope-based non-data-aided estimator; mathematical derivation; mean-squared-error; modulation-independent non-data-aided SNR estimator; signal constellation; statistical-moments; Conferences; Constellation diagram; Estimation; Fading; OFDM; Signal to noise ratio; Time-domain analysis; Nakagami fading; OFDM; SNR estimation; non-data-aided; time-domain;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, Computers and Signal Processing (PACRIM), 2013 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
ISSN :
1555-5798
Type :
conf
DOI :
10.1109/PACRIM.2013.6625439
Filename :
6625439
Link To Document :
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