Analysis of Dual Use of a Trunk Group with Reservation

Abstract

This paper considers the traffic aspects of a multitrunk communication system under a dual use of trunks for both direct and store-and-forward (S/F) traffic, in which one trunk is held in reserve for direct traffic. A method of computation, some results for trunk efficiencies and blocking probabilities of direct traffic and also of S/F traffic are presented. Numerical results are obtained for the various cases. The numerical results show that the trunk efficiency of the system can be twice as high as that of the system with no S/F traffic. This is possible without any significant impairment of the grade of service to direct traffic due to mixing S/F traffic. Moreover, in the system, the grade of service of S/F traffic is not significantly impaired due to the trunk held in reserve for direct traffic.