Title :
Feedback can improve the second-order coding performance in discrete memoryless channels
Author :
Altug, Yucel ; Wagner, Aaron B.
Author_Institution :
Sch. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA
fDate :
June 29 2014-July 4 2014
Abstract :
For a class of discrete memoryless channels, a simple feedback scheme is shown to improve the second-order term in the normal approximation compared with coding without feedback. Conversely, we provide a new, second-moment-based condition for when feedback does not improve the second-order term.
Keywords :
approximation theory; channel coding; memoryless systems; discrete memoryless channels; normal approximation; second-moment-based condition; second-order coding performance; simple feedback scheme; Algebra; Programmable logic arrays;
Conference_Titel :
Information Theory (ISIT), 2014 IEEE International Symposium on
Conference_Location :
Honolulu, HI
DOI :
10.1109/ISIT.2014.6875256
