Hw. Chen et K. Yanagi, ON THE COVERS CONJECTURE ON CAPACITY OF GAUSSIAN-CHANNEL WITH FEEDBACK, IEICE transactions on fundamentals of electronics, communications and computer science, E80A(11), 1997, pp. 2272-2275
We consider the upper bounds of the finite block length capacity C-n,C
-FB(P) Of the discrete time Gaussian channel with feedback. We prove t
he relation C-2(P) less than or equal to C-2,C-FB(P) < C-2(2P), which
is a partial solution of the conjecture given by Cover. In addition we
prove several relations.