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Asymptotic CRB on SNR estimation of QPSK signals in low-SNR Nakagami-m fading channels with diversity combining

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2 Author(s)
Dilaveroglu, E. ; Dept. of Electron. Eng., Uludag Univ., Bursa, Turkey ; Ertas, T.

A simple closed-form expression is derived for the low signal-to-noise ratio (SNR) asymptote of the Crame´r-Rao bound (CRB) on the estimation of SNR for quaternary phase-shift-keying signals received over Nakagami-m fading channels with L branch equal gain diversity combining.

Published in:

Electronics Letters  (Volume:40 ,  Issue: 11 )