Communicating via a processing broadcast satellite

Author

Wyner, Aaron D. ; Wolf, Jack Keil ; Willems, Frans M J

Author_Institution

AT&T Bell Labs., Murray Hill, NJ, USA

Volume

48

Issue

6

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

1243

Lastpage

1249

Abstract

Three dependent users are physically separated but communicate with each other via a satellite. Each user generates data which it stores locally. In addition, each user sends a message to the satellite. The satellite processes the messages received from the users and broadcasts one common message to all three users. Each user must be capable of reconstructing the data of the other two users based upon the broadcast message and its own stored data. Our problem is to determine the minimum amount of information which must be transmitted to and from the satellite. The solution to this problem is obtained for the case where subsequent data triples that are produced by the users are independent and identically distributed. The three symbols within each triple are assumed to be dependent. Crucial for the solution is an achievability proof that involves cascaded Slepian-Wolf (1973) source coding

Keywords

data compression; direct broadcasting by satellite; source coding; achievable rate quadruples; broadcast message; cascaded source coding; data compression; data reconstruction; data triples; feedback; i.i.d.; independent identically distribution; processing broadcast satellite; satellite communication; Artificial satellites; Communication networks; Conferences; Data compression; Information theory; Lifting equipment; Magnetic recording; Satellite broadcasting; Satellite communication; Source coding;

fLanguage

English

Journal_Title

Information Theory, IEEE Transactions on

Publisher

ieee

ISSN

0018-9448

Type

jour

DOI

10.1109/TIT.2002.1003820

Filename

1003820