When Does Joint Source-channel Coding Outperform Tandem Coding for Systems with Markovian Memory ?
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چکیده
TANDEM CODING FOR SYSTEMS WITH MARKOVIAN MEMORY ? Yangfan Zhong, Fady Alajaji and L. Lorne Campbell Department of Mathematics and Statistics Queen’s University, Kingston, ON K7L 3N6, Canada fyangfan, fady, [email protected] ABSTRACT In this work, we explore the merits of joint source-channel coding (JSCC) versus traditional tandem coding, which consists of separately performing and concatenating source and channel coding, from the point of view of the error exponent (or reliability function). For a communication system with a discrete stationary ergodic Markov (SEM) source Q and a discrete channel W with additive SEM noise, we present sufficient conditions under which the JSCC error exponent
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تاریخ انتشار 2017