10 December 2025
Confronted with escalating safety concerns and operational inefficiencies, a leading government-owned railway company in Africa recognised the urgent necessity to modernise its aging communication infrastructure.
As the country’s primary railway provider overseeing over 1,000km of track, the organisation’s ability to deliver reliable passenger and freight services was crucial to the national economy and daily life. To ensure uninterrupted, efficient operations and to position itself for future growth, the railway embarked on a comprehensive network upgrade to develop a resilient, scalable wireless communication system.
The urgency for network modernisation
The railway network serves as a vital conduit for both passenger mobility and cargo logistics within the nation. However, the existing private wireless communication system was showing its age. Persistent slowdowns, frequent outages, and declining public confidence underscored the critical need for intervention.
Beyond operational delays, the outdated technology posed serious safety risks, especially with the reliance on obsolete onboard signalling systems that are essential for managing train traffic and ensuring passenger and cargo safety. The microwave backbone, which forms the core of the communication network, was no longer capable of supporting the demands of modern railway operations. Additionally, remote stations depended on aging solar power systems, resulting in unreliable service in isolated regions.
Addressing these issues swiftly was necessary to restore safety, operational efficiency, and reliability.
An end-to-end approach
The modernisation initiative was driven by several core challenges. The first was the obsolete microwave communication links, which struggled to provide stable, high-capacity connectivity, leading to inefficiencies across the railway’s operations. The outdated onboard signalling systems further compounded safety concerns, as their unreliability threatened safe train management. Remote stations, reliant on antiquated solar power installations, experienced frequent outages, disrupting service in remote areas. Furthermore, the limited budget constraints meant that the solution had to be not only effective but also cost-efficient, compatible with existing infrastructure, and scalable for future technological advancements.
The railway’s transformation required an end-to-end approach that went beyond quick fixes, aiming instead for a future-proof network. Ceragon’s team delivered a tailored, comprehensive solution addressing each of these challenges.
They upgraded the core communication backbone with high-capacity wireless microwave links, leveraging advanced technology to provide resilient, high-throughput connectivity across the entire 1,000km network. This significantly reduced service disruptions and delays, enabling trains to operate on schedule and improving overall operational efficiency. To enhance real-time coordination between rail terminals and control centres, Ceragon implemented VHF digital mobile radio systems at strategic locations, which improved communication clarity and safety.
In remote areas where the power infrastructure was unreliable, Ceragon deployed sophisticated solar power systems with 72-hour autonomy, ensuring continuous operation even during extended outages. These sustainable power solutions enhanced overall network stability and reduced dependence on the unreliable grid. The infrastructure was designed with scalability in mind, providing a foundation for integrating emerging technologies such as real-time analytics, predictive maintenance, and autonomous train control systems, positioning the railway for future technological evolution.
Embracing the future
The results of this modernisation effort were transformative.
The upgraded microwave links and robust power systems dramatically reduced outages, ensuring trains could run reliably and on time. Improved signalling and communication systems enhanced safety standards, reducing risks associated with outdated technology. Restoring consistent service and safety measures increased public trust and satisfaction. Importantly, the new scalable infrastructure positioned the railway to adopt innovative solutions like cargo tracking, automated safety systems, and predictive maintenance, supporting sustainable long-term growth.
In an increasingly digital world, reliance on outdated communication networks is a significant barrier to efficiency, safety, and competitiveness. Railway operators and other critical industries must embrace modern wireless infrastructure to meet rising demands and leverage technological innovations. With a solid wireless foundation, industries can confidently navigate upcoming challenges, innovate processes, and deliver safer, more reliable services.
