Asynchronous multiplexing

This paper will consider theoretical limitations and capabilities of general types of asynchronous multiplexing systems for networks of the type shown in Fig. 1. The kth station of the ith channel of the network is Sik. All stations belonging to a channel are in communication with each other. The purpose of the multiplexing system is to provide this communication when stations of all channels use a common transmission medium in which signals and noise mix additively. Fig. 1 adequately describes a mobile communication system, for instance, in which the individual communication paths vary widely in direction and length.