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Using zero-rate feedback on binary additive channels with individual noise sequences

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4 Author(s)
Eswaran, K. ; Dept. of Electr. Eng. & Comput. Sci., Univ. of California, Berkeley, CA ; Sarwate, A.D. ; Sahai, A. ; Gastpar, M.

Recently, Shayevitz and Feeler introduced an individual sequence formulation of channel coding under model uncertainty and an elegant coding strategy that adapts Horstein's scheme to this setting to achieve the empirical capacity of the channel. Their scheme requires both full-rate output feedback and common randomness. We present a strategy in the style of Hybrid ARQ that requires no output feedback by using common randomness and zero-rate active feedback. This strategy still asymptotically achieves the empirical capacity.

Published in:

Information Theory, 2007. ISIT 2007. IEEE International Symposium on

Date of Conference:

24-29 June 2007