Code Rate, Queueing Behavior and the Correlated Erasure Channel Conference Paper

abstract

• This paper considers the relationship between coderate selection and queueing performance for communication systems with time-varying parameters. While error-correcting codes offer protection against channel unreliability, there is a tradeoff between the enhanced protection of low-rate codes and the increased information transfer of high-rate codes. Hence, there exists a natural compromise between packet-level error protection and information rate. In the limiting regime where codewords are asymptotically long, this tradeoff is well-understood and characterized by the Shannon capacity. However, for delay-sensitive communication systems and finite code-lengths, a complete characterization of this tradeoff is still not fully developed. This paper offers a new perspective on the queueing performance of communication systems with finite block-lengths operating over correlated erasure channels. A rigorous framework that links code rate to overall system performance for random codes is presented. Guidelines for code rate selection in delay-sensitive systems are identified.

name of conference

• IEEE Information Theory Workshop 2010 (ITW 2010)

authors

• Chamberland-Tremblay, Jean-Francois
• Narayanan, Krishna

published proceedings

• IEEE Information Theory Workshop 2010 (ITW 2010)

author list (cited authors)

• Parag, P., Chamberland, J., Pfister, H., & Narayanan, K.

citation count

• 3

complete list of authors

• Parag, Parimal||Chamberland, Jean-Francois||Pfister, Henry||Narayanan, Krishna

publication date

• January 2010

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

Digital Object Identifier (DOI)

• 10.1109/itwksps.2010.5503186

International Standard Book Number (ISBN) 13

• 9781424463725

start page

• 1

end page

• 5

URL

• http://dx.doi.org/10.1109/itwksps.2010.5503186