OPTIMIZATION OF THE PARAMETERS OF DIGITAL APPARATUS FOR THE STATISTICAL CONCENTRATION OF CHANNELS OF THE BLOCK TYPE

The problem of increasing the utilization efficiency of digital linear channels, including optical channels, is extremely important. One of the ways of solving this problem is to use statistical transmission sy stems. Various aspects of the design of such systems have been discuss ed in the technical literature, including ''Elektrosvyaz'''. In partic ular, in addition to the references given at the end of this paper, an extremely interesting article by Demovoi et al. was published in Elek trosvyaz', No. 7, 1991. In the present paper we present some results o f an investigation of one of the modifications of statistical systems, in which, in addition to the principle of variable code-word length, the statistics of the channel activity is also employed. The optimum l ength of a block of the channel signal is determined by modelling, and recommendations are made regarding the choice of the structure of the transmission cycle. Graphs are given which confirm the possibility of trebling the carrying capacity of the primary digital linear channel.