Termin:
14.01.2004
18:15
How do you transmit a message with very little power from a deep-space probe millions of miles away so that it can be received without error? How can you exchange information privately over a public network with someone you have never met before and be sure of that person's identity? These are questions that communication engineers have been addressing vigorously over many years and they have come up with many ingenious solutions, some of which will be described in this lecture. The answer to the first question is that you should use an error-correcting code and the answer to the second is that you should use a secrecy code. Both kinds of codes are based on discrete mathematics, which is simpler, more fun, but less familiar than the mathematics traditionally taught in secondary schools. A brief introduction to this kind of mathematics will be given and illustrated with numerous examples of secrecy codes and of error-correcting codes.
Moderation: Wolfgang Mecklenbräuker, ÖAW, TU Wien
Veranstalter:
Österreichische Akademie der Wissenschaften (ÖAW)
gemeinsam mit der Industriellenvereinigung Wien
Büro für Öffentlichkeitsarbeit
Österreichische Akademie der Wissenschaften
Dr. Ignaz Seipel-Platz 2, A-1010 Wien
T +43 (1) 51581-1219
F +43 (1) 51581-1227
email: marianne.baumgart@oeaw.ac.at