Reliability Evaluation Method for DVB-T2 Systems on Typical Transmitter Stations

摘要

In this paper, we model the Digital Video Broadcasting-Terrestrial 2 (DVB-T2) system on a typical transmitter station in the content regionalization mode by using multilayer graphs to evaluate its reliability parameters. One of the proposed models characterizes the states of the broadcasting system when using only local content insertion in accordance with ETSI TS 102773. The second model, also implemented as a multilayer graph, describes the states of the system when the regionalization devices are cascaded. Based on the proposed expressions for the probability of 100% uptime operation of each broadcasting system, their parameters are evaluated, showing that the system with cascade content insertion has an availability factor that is 3.28% higher than that of the system with content insertion based on physical layer pipe (PLP) replacement, with the direct reservation of the cascade scheme improving its reliability by 9.77%.