Reliability analysis of low noise amplifier in a KU-band VSAT network

Abstract

Peru has a diverse geography that provides a variety of resources and significant cultural richness, while also presenting challenges for access to telecommunications services due to the lack of necessary infrastructure. VSAT satellite communication systems represent a connectivity alternative in rural areas, which is why the government and private entities rely on these systems to obtain connectivity. VSAT systems must operate under adverse conditions, making the estimation of component reliability important for budgeting and spare parts estimation throughout the project’s lifespan, as well as for determining the reusability of components in a time where environmental conservation is a global issue of high interest. The study applied reliability engineering knowledge in the telecommunications sector to find the mathematical reliability model of the low noise amplifiers (LNA) used in a KU band VSAT satellite network consisting of 1500 remote stations installed in rural areas of Peru. The conclusion was that the Weibull distribution represents the best alternative for modeling, and using the derived model, it was estimated that the LNAs have an 85% reliability at the end of the 5th year of operation, making them suitable for reuse in other projects.