Relay with Side Information

Author

Kwak, R. ; Wooyul Lee ; El Gamal, A. ; Cioffi, J.M.

Author_Institution

Dept. of Electr. Eng., Stanford Univ., Stanford, CA

fYear

2007

fDate

24-29 June 2007

Firstpage

606

Lastpage

610

Abstract

This paper establishes necessary and sufficient conditions for reliable transmission of a source over a relay channel when source side information is available non-causally (a) only at the receiver, (b) only at the relay, or (c) at both the relay and the receiver. For the cases of side information only at the receiver and at both the relay and the receiver, we establish tight necessary and sufficient conditions that apply to any relay channel and show that source-channel separation is optimal. When side information is available only at the relay, we establish a necessary condition for reliable transmission and show that it is tight for the class of degraded relay channels and that source-channel separation is optimal in this case.

Keywords

channel capacity; combined source-channel coding; memoryless systems; telecommunication network reliability; discrete memoryless channel capacity; relay channel; reliable transmission; source channel coding; source side information; source-channel separation; Broadcasting; Decoding; Degradation; Information theory; Relays; Reliability theory; Sufficient conditions;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2007. ISIT 2007. IEEE International Symposium on

Conference_Location

Nice

Print_ISBN

978-1-4244-1397-3

Type

conf

DOI

10.1109/ISIT.2007.4557291

Filename

4557291