Title :
Double differential MPSK on the fast Rician fading channel
Author :
Qu, Shouxing ; Fleisher, Solomon M.
Author_Institution :
Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont., Canada
fDate :
8/1/1992 12:00:00 AM
Abstract :
An analysis of adjacent and nonadjacent double differential M -ary PSK (M-ary D2PSK) on the fast Rician fading channel is presented. The probability density function (PDF) of the first-order phase error (FOPE) and the probability density functions of the second-order phase error (SOPE) for both adjacent and nonadjacent D2PSK on a fading channel have been derived. Asymptotic approximations for these PDFs are proposed in the case of channels with weak fading (including the additive white Gaussian noise (AWGN) channel) and high signal-to-noise ratio. For nonadjacent D2PSK with independent FOPEs a simplified PDF of SOPE has been obtained. The derived PDFs allow calculation of error performance of D2PSK, as well as of DPSK, on the Rician channel including the AWGN channel and the Rayleigh channel and verification of some results reported in the literature earlier. It is shown that nonadjacent D2PSK can be optimized by choosing a proper separation between the first-order phase differences
Keywords :
digital radio systems; error statistics; fading; phase shift keying; telecommunication channels; AWGN channel; M-ary D2PSK; Rayleigh channel; additive white Gaussian noise; adjacent D2PSK; double differential M-ary PSK; error performance; error probability; fast Rician fading channel; first-order phase differences; first-order phase error; high signal-to-noise ratio; nonadjacent D2PSK; phase difference modulation; probability density function; second-order phase error; weak fading; AWGN; Additive white noise; Demodulation; Differential quadrature phase shift keying; Error probability; Fading; Frequency estimation; Phase shift keying; Probability density function; Rician channels;
Journal_Title :
Vehicular Technology, IEEE Transactions on
