7 papers
Asymptotic Expansions of Smooth Rényi Entropies and Their Applications
Yuta Sakai, Vincent Y. F. Tan
This study considers the unconditional smooth Rényi entropy, the smooth conditional Rényi entropy proposed by Kuzuoka [\emph{IEEE Trans.\ Inf.\ Theory}, vol.~66, no.~3, pp.~1674--1…
Variable-Length Source Dispersions Differ under Maximum and Average Error Criteria
Yuta Sakai, Vincent Y. F. Tan
Variable-length compression without prefix-free constraints and with side-information available at both encoder and decoder is considered. Instead of requiring the code to be error…
Countably Infinite Multilevel Source Polarization for Non-Stationary Erasure Distributions
Yuta Sakai, Ken-ichi Iwata, Hiroshi Fujisaki
Polar transforms are central operations in the study of polar codes. This paper examines polar transforms for non-stationary memoryless sources on possibly infinite source alphabet…
Second- and Third-Order Asymptotics of the Continuous-Time Poisson Channel
Yuta Sakai, Vincent Y. F. Tan, Mladen Kovačević
The paper derives the optimal second-order coding rate for the continuous-time Poisson channel. We also obtain bounds on the third-order coding rate. This is the first instance of…
Modular Arithmetic Erasure Channels and Their Multilevel Channel Polarization
Yuta Sakai, Ken-ichi Iwata, Hiroshi Fujisaki
This study proposes \emph{modular arithmetic erasure channels} (MAECs), a novel class of erasure-like channels with an input alphabet that need not be binary. This class contains t…
Proceedings of Workshop AEW10: Concepts in Information Theory and Communications
Kees A. Schouhamer Immink, Stan Baggen, Ferdaous Chaabane +31
The 10th Asia-Europe workshop in "Concepts in Information Theory and Communications" AEW10 was held in Boppard, Germany on June 21-23, 2017. It is based on a longstanding cooperati…