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A formula for an FM signal under Rayleigh fading [mobile radio]

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1 Author(s)
Loo, C. ; Dept. of Commun., Commun. Res. Center, Ottawa, Ont., Canada

A simple formula for the baseband signal-to-noise ratio of an FM signal under Rayleigh fading is derived. The formula automatically includes the noise component due to modulation. Calculated values of the average signal-to-noise ratio for FM and AM signals under Rayleigh fading are given. The results show that the FM signal with a modulation index of one or greater, outperforms an AM signal under identical fading conditions

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Vehicular Technology, IEEE Transactions on  (Volume:37 ,  Issue: 4 )