At this moment communication appears mainly in networks. One of the problems is how to transmit information within these networks as efficiently as possible. In multichannel information theory , among others, the limits on the maximal data transmission for networks is studied. The research of the Information Theory Group is related to the more theoretical aspects of multichannel information theory. Examples of this work are the determination of the capacity of the various network architectures, and coding and channel access methods.
Specific attention is paid to mobile communication networks.
The objective of cryptography is the security of messages to be stored or transmitted, confidentiality and integrity, and methods for the authentication of information sources. With respect to multimedia applications attention is paid to cryptographic methods for copyright protection, such as watermarking, as well as methods for copy protection.