SNR Estimation for Non-Coherent M-FSK Receivers in Rice Fading Environment

作者：Javed Usman^*; Hassan Syed Ali

来源：IEEE Communications Letters, 2013, 17(9): 1786-1789.

DOI：10.1109/LCOMM.2013.070913.131171

• SNR estimation
• non-coherent FSK
• Rice fading
• maximum likelihood

The problem of estimating the average signal-to-noise ratio (SNR) in a non-coherent M-ary frequency shift keying (NCMFSK) receiver has been considered, where the transmitted signal is propagated over a noisy Ricean fading channel. Closed-form maximum likelihood estimators for both the data-aided and non data-aided scenarios have been derived using the approximations of the modified Bessel functions. Numerical results are presented and the performance of the estimators is evaluated by comparing with a Cramer-Rao bound.

• 出版日期2013-9