|| A Practical Coding Scheme for the BSC with Feedback
||Ke Wu, Carnegie Mellon University, United States; Aaron B. Wagner, Cornell University, United States|
||D1-S3-T1: Streaming with Feedback
||Monday, 12 July, 22:40 - 23:00
||Monday, 12 July, 23:00 - 23:20
We provide a practical implementation of the rubber method of Ahlswede et al.for binary channels. The idea is to create the “skeleton” sequence therein via an arithmetic decoder designed for a particular k-th order Markov chain. For the stochastic binary symmetric channel, we show that the scheme is nearly optimal in a strong sense for certain parameters. A byproduct of the analysis is a strict enlargement of the rates for which the sphere-packing bound is known to be achievable with feedback for this channel.