Title :
Proactive source coding
Author :
Gungor, Onur ; Koyluoglu, O. Ozan ; El Gamal, Hesham ; Koksal, Can Emre
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
July 31 2011-Aug. 5 2011
Abstract :
A coding problem, over a slotted system, is introduced where the sender has to transmit one out of several packets to the receiver, but learns the request only at the beginning of each slot with prior statistical information about which packet is needed at the receiver. There is an associated cost of sending bits at each slot, and the goal is to minimize the expected cost of the communication. A proactive coding scheme is proposed, where the source proactively communicates with the receiver before the receiver requests the message. This way, by designing a cost optimal side information at the receiver, the scheme is able to minimize the expected cost of the communication. Numerical results are provided demonstrating the gains obtained by proactive coding over the conventional coding technique.
Keywords :
receivers; source coding; coding problem; cost optimal side information; expected cost of communication; proactive source coding; slotted system; statistical information; Indexes; Markov processes; Receivers; Resource management; Source coding;
Conference_Titel :
Information Theory Proceedings (ISIT), 2011 IEEE International Symposium on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4577-0596-0
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2011.6033953