The problem of call admission control and routing in a multi-service circuit-switched loss network can be solved optimally under certain assumptions by the tools of Markov decision theory. However in networks of practical size a number of simplifying approximations are needed to make the solution feasible. Assuming link independence, we propose a new method for approximating the state-dependent...

purpose: the main aim of this study was to determine the cost-utility of the integrated systems in the iranian academic libraries. methodology: this applied research was conducted through a survey method. the statistical population consisted of 118 academic libraries among which 75 libraries were selected using stratified sampling method. the researcher-made questionnaire was distributed among ...

Multicast routing consists of concurrently sending the same information from a source to subset all possible destinations in computer network thus becomes an important technology communication. To solve problem, current approach for efficiently supporting multicast session establishing tree that covers and terminal nodes. This problem can be reduced minimal Steiner (MST) which aims look set nod...