PERFORMANCE STUDY OF CHANNEL ALLOCATION STRATEGIES IN AN ISDN - THE SIMULATION APPROACH

Abstract

Communication of information is a fundamental need of the human society. In order to satisfy this need, a variety of telecommunication systems have been developed to support different types of traffic requirements (for example the public telephone network, the data transmission network, the telex network. etc.). Before 1962 (when PCM was introduced), transmission facilities were all analog. In the past three decades, however, the many advantages of digital systems -small cost and size, large transmission and switching facilities, high signal quality, flexibility and ease of maintenance- have promoted the conversion of transmission and switching systems from analog to digital in many telephone administrations all over the world [8).