TY - GEN
T1 - Dispersion of the gilbert-elliott channel
AU - Polyanskiy, Yury
AU - Poor, H. Vincent
AU - Verdii, Sergio
PY - 2009
Y1 - 2009
N2 - Channel dispersion plays a fundamental role in assessing the backoff from capacity due to finite blocklength. This paper analyzes the channel dispersion for a simple channel with memory: the Gilbert-Elliott communication model in which the crossover probability of a binary symmetric channel evolves as a binary symmetric Markov chain, with and without side information at the receiver about the channel state. With side information, although capacity is invariant to the chain dynamics, dispersion is shown to be the sum of two terms: due to the Markov chain dynamics and due to the the randomness in the error generation, respectively.
AB - Channel dispersion plays a fundamental role in assessing the backoff from capacity due to finite blocklength. This paper analyzes the channel dispersion for a simple channel with memory: the Gilbert-Elliott communication model in which the crossover probability of a binary symmetric channel evolves as a binary symmetric Markov chain, with and without side information at the receiver about the channel state. With side information, although capacity is invariant to the chain dynamics, dispersion is shown to be the sum of two terms: due to the Markov chain dynamics and due to the the randomness in the error generation, respectively.
UR - http://www.scopus.com/inward/record.url?scp=70449492962&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70449492962&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2009.5205838
DO - 10.1109/ISIT.2009.5205838
M3 - Conference contribution
AN - SCOPUS:70449492962
SN - 9781424443130
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 2209
EP - 2213
BT - 2009 IEEE International Symposium on Information Theory, ISIT 2009
T2 - 2009 IEEE International Symposium on Information Theory, ISIT 2009
Y2 - 28 June 2009 through 3 July 2009
ER -