Work

Finite block-length achievable rates for queuing timing channels

Year: 2011
Type: conference-paper
Abstract: The exponential server timing channel is known to be the simplest, and in some sense canonical, queuing timing channel. The capacity of this infinite-memory channel is known. Here, we discuss practical finite-length restrictions on the codewords and attempt to understand the maximal rate that can be achieved for a target error probability. By using Markov chain analysis, we prove a lower bound on the maximal channel coding rate achievable at blocklength n and error probability ϵ. The bound is approximated by C - n-1/2σQ (ϵ) where Q denotes the Q-function and σ2is the asymptotic variance of the underlying Markov chain. A closed form expression for σ2is given.
Language: English
Open Access status: green
OpenAlex ID: W2037580341
FWCI: 1.139
Cites: 27
Cited by: 15
Related to: 10