An instruction material for the learning of BSC from an attack on the secured channel

摘要

The present paper is concerned with an instruction material for the learning of secured access communication systems and its wiretapping signal. Some of the representative systems may be found in the following: ①Spread spectrum system (SS) and ②BS digital system. Specifically, the SS system, which has great current topic, is scheduled to introduce to the next generation mobile telephone system (IMT-2000 system). These systems provide us with many fundamental instruction materials when students study the primary notion of both the entropy and mutual information in information theory. In this paper, we present many graphical representations of SNR and mutual correlation function, which are associated with the entropy and mutual information in the binary symmetric channel (BSC).