Title :
A robust receiver structure for time-varying, frequency-flat, Rayleigh fading channels
Author :
Borah, Deva K. ; Hart, Brian D.
Author_Institution :
Telecommun. Eng. Group, Australian Nat. Univ., Canberra, ACT, Australia
fDate :
3/1/1999 12:00:00 AM
Abstract :
A receiver structure for unknown time-varying, frequency-flat, Rayleigh fading channels is proposed. Unlike the maximum-likelihood receiver structure, this receiver does not need any knowledge of the channel autocovariance or the received signal-to-noise ratio, and yet analytic and simulation results show, that its bit-error rate performance is close to the optimal structure. The receiver is applicable to signals with constant or approximately constant envelopes or to linearly modulated signals using Nyquist pulses
Keywords :
Rayleigh channels; Viterbi detection; error statistics; modulation; polynomials; radio receivers; sequences; time-varying channels; Nyquist pulses; Rayleigh fading channels; Viterbi algorithm; bit-error rate performance; channel autocovariance; constant envelopes; digital signal detection; frequency-flat fading channels; linearly modulated signals; maximum-likelihood receiver; optimal structure; polynomial predictor based sequence detector; received signal-to-noise ratio; robust receiver structure; simulation results; time-varying channels; Detectors; Fading; Frequency; Maximum likelihood detection; Maximum likelihood estimation; Polynomials; Pulse modulation; Robustness; Signal to noise ratio; Statistics;
Journal_Title :
Communications, IEEE Transactions on
