Design Of A Digital Mobile Radio Network For A Mission-Critical Communication

Abstract

The evolution of mobile communication has shifted from analogue to digital technologies, improving reliability, security, and efficiency. Professional Mobile Radio (PMR) systems have long been essential for Mission-Critical Communications (MCC), particularly in railway operations. However, analogue PMR is becoming obsolete due to spectral inefficiency, poor audio quality, and security concerns. This study explores digital alternatives such as Terrestrial Trunked Radio (TETRA), Long-Term Evolution (LTE), and Digital Mobile Radio (DMR), focusing on DMR as a viable replacement for PMR. A comparative analysis evaluates their suitability, followed by the design and simulation of a DMR pilot site. The findings contribute to knowledge on digital MCC solutions, supporting the adoption of modern communication technologies in railway operations to enhance operational efficiency and safety.