4 papers
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…
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…
Sharp Bounds Between Two Rényi Entropies of Distinct Positive Orders
Yuta Sakai, Ken-ichi Iwata
Many axiomatic definitions of entropy, such as the Rényi entropy, of a random variable are closely related to the -norm of its probability distribution. This study consider…