Title :
Necessary and sufficient condition for capacity of the discrete time Gaussian channel to be increased by feedback
Author_Institution :
Dept. of Math., Yamaguchi Univ., Japan
fDate :
11/1/1992 12:00:00 AM
Abstract :
The problem of whether the capacity of a discrete-time Gaussian channel is increased by feedback or not is considered. It is well known that the capacity of a white Gaussian channel under an average power constraint is not changed by feedback. The necessary condition under which the capacity of a nonwhite Gaussian channel with blockwise white noise is increased by feedback is given
Keywords :
channel capacity; discrete time systems; feedback; white noise; blockwise white noise; channel capacity; discrete time Gaussian channel; feedback; necessary condition; nonwhite Gaussian channel; sufficient condition; Channel capacity; Covariance matrix; Feedback; Gaussian channels; Gaussian noise; Gaussian processes; Signal processing; Stochastic processes; Sufficient conditions; White noise;
Journal_Title :
Information Theory, IEEE Transactions on
