Title :
On the capacity of the discrete-time Gaussian channel with delayed feedback
Author_Institution :
Fac. of Eng., Yamaguchi Univ., Ube, Japan
fDate :
7/1/1995 12:00:00 AM
Abstract :
Gives an upper bound on the finite block length capacity of the discrete-time nonstationary Gaussian channel with delayed feedback. With the aid of minimization of a quadratic form, it is proved that the L time-delayed feedback capacity CnFBL(P) and the nonfeedback capacity Cn(P) satisfy Cn(P)⩽CnFBL(P)⩽Cn (P*) where P* is concretely given. The authors give a sufficient condition for CnFBL(P) to be increased by L time-delayed feedback. Finally the authors also give a necessary and sufficient condition for CnFB2(P) of a class of Gaussian channel to be increased by 2 time-delayed feedback
Keywords :
Gaussian channels; channel capacity; delays; discrete time systems; feedback; minimisation; time-varying channels; L time-delayed feedback; capacity; delayed feedback; discrete-time Gaussian channel; finite block length capacity; minimization; nonfeedback capacity; nonstationary Gaussian channel; quadratic form; time-delayed feedback capacity; Channel capacity; Delay; Gaussian channels; Gaussian processes; Helium; Output feedback; Signal processing; Sufficient conditions; Upper bound; Zinc;
Journal_Title :
Information Theory, IEEE Transactions on
