Summary: IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 55, NO. 4, APRIL 2009 1487
Error Exponents for Asymmetric Two-User Discrete
Memoryless Source-Channel Coding Systems
Yangfan Zhong, Student Member, IEEE, Fady Alajaji, Senior Member, IEEE, and
L. Lorne Campbell, Life Fellow, IEEE
Abstract--We study the transmission of two discrete memoryless
correlated sources, consisting of a common and a private source,
over a discrete memoryless multiterminal channel with two trans-
mitters and two receivers. At the transmitter side, the common
source is observed by both encoders but the private source can only
be accessed by one encoder. At the receiver side, both decoders
need to reconstruct the common source, but only one decoder
needs to reconstruct the private source. We hence refer to this
system by the asymmetric two-user source­channel coding system.
We derive a universally achievable lossless joint source­channel
coding (JSCC) error exponent pair for the two-user system by
using a technique which generalizes Csiszár's type-packing lemma
(1980) for the point-to-point (single-user) discrete memoryless
source­channel system. We next investigate the largest conver-
gence rate of asymptotic exponential decay of the system (overall)

Source: Alajaji, Fady - Department of Mathematics and Statistics, Queen's University (Kingston)

Collections: Engineering