Analysis and Performance Optimization of Network Congestion in Microwave Networks

Abstract

This dissertation focuses on the study of congestion in mobile telecommunication networks, with particular emphasis on microwave transmission systems. The work aims to analyze the causes and effects of congestion and to examine the methods used for its monitoring and resolution. The study presents an overview of mobile network architectures and transmission technologies, including microwave and optical fiber systems. It also explores network management and monitoring tools, particularly the Network Cloud Engine (NCE) and Web Local Craft Terminal (Web LCT), used to supervise network performance and detect congestion issues. As part of the practical work carried out at Mobilis, several congestion cases were analyzed using network performance indicators (KPIs), traffic measurements, and alarm monitoring. Different types of congestion affecting microwave links, Ethernet interfaces, and optical transmission networks were investigated. Various optimization solutions, such as capacity upgrades, traffic rebalancing, and interface migration, were proposed to improve network performance. The results highlight the importance of continuous monitoring and efficient resource management in ensuring service quality and network reliability.