Abstract
This paper investigates a stochastic model of a dynamic National Broadcasting Network (NBN) system. In this model a Central Relay Station (CRS) is connected with n-Remote Relay Stations (RRSs). Each of them has an equal frequency of relaying the national programmes. An RRS may fail temporarily due to irregular power supply, disturbed antenna direction etc. Either the CRS or all the RRSs may fail permanently due to common cause failure, i.e., electromagnetic interference. Periodic preventive maintenance (PM) of the system is essential for regular operation of the network. To detect these kinds of faults, a detection cell is also available. The regenerative point technique is applied for the analysis of such a network system.
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