Title :
Non-data-aided SNR estimation method for APSK exploiting rank discrimination test
Author :
Azim, Ali Waqar ; Khalid, S.S. ; Abrar, Shafayat
Author_Institution :
COMSATS Inst. of Inf. Technol., Islamabad, Pakistan
Abstract :
Presented is a non-data-aided (NDA) signal-to-noise ratio (SNR) estimation method for amplitude-phase shift-keying (APSK) in the presence of additive white Gaussian noise over a quasi-static channel. The proposed estimator is based on a rank discrimination test and uses a look-up table for SNR estimation. The performance of the proposed estimator is evaluated for 8APSK and 16APSK. It is shown through Monte-Carlo simulations that the proposed estimator outperforms existing NDA moment-based SNR estimators in terms of normalised mean-square error.
Keywords :
AWGN; Monte Carlo methods; amplitude shift keying; estimation theory; mean square error methods; performance evaluation; phase shift keying; signal processing; statistical testing; table lookup; APSK exploiting rank discrimination test; Monte-Carlo simulations; NDA moment-based SNR estimators; NDA signal-to-noise ratio estimation method; additive white Gaussian noise; amplitude-phase shift-keying; look-up table; nondata-aided SNR estimation method; normalised mean-square error; performance evaluation; quasi-static channel;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.1327
