The Augustin center and the sphere packing bound for memoryless channels

Autor: Baris Nakiboglu
Rok vydání: 2017
Předmět:
Zdroj: ISIT
DOI: 10.1109/isit.2017.8006759
Popis: For any channel with a convex constraint set and finite Augustin capacity, existence of a unique Augustin center and associated Erven-Harremoes bound are established. Augustin-Legendre capacity, center, and radius are introduced and proved to be equal to the corresponding Renyi-Gallager entities. Sphere packing bounds with polynomial prefactors are derived for codes on two families of channels: (possibly non-stationary) memoryless channels with multiple additive cost constraints and stationary memoryless channels with convex constraints on the empirical distribution of the input codewords.
Comment: Accepted to ISIT 2017
Databáze: OpenAIRE