Asymptotic performance of M-ary orthogonal modulation ingeneralized fading channels |
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Authors: | Crepeau P.J. |
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Affiliation: | Div. of Inf. Technol., Naval Res. Lab., Washington, DC; |
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Abstract: | The asymptotic (M→∞) probability of symbol error Pe,m for M-ary orthogonal modulation in a Nakagami-m fading channel is given by the incomplete gamma function P(m, mx) where x=In 2/(Eb/N0) and Eb is the average energy per bit. For large signal-to-noise ratio this leads to a channel where the probability of symbol error varies as the inverse mth power of Eb/N0. These channels exist for all m⩾1/2. The special case of m=1 corresponds to Rayleigh fading, an inverse linear channel |
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