Abstract

Telecommunication networks serve as critical infrastructure supporting modern economies, digital services, and societal connectivity. As these networks become increasingly complex, dynamic, and exposed to both internal and external threats, ensuring their continuous reliability and robustness is paramount. This systematic review explores the intersection of resilience engineering and operational risk management in the context of telecom networks, offering a comprehensive synthesis of current approaches, gaps, and emerging trends. The review follows the PRISMA methodology to identify, screen, and analyze peer-reviewed literature published over the past two decades. Key themes include system adaptability, fault tolerance, redundancy, recovery mechanisms, and proactive risk assessment frameworks. The analysis also considers resilience attributes such as robustness, flexibility, modularity, and learning capacity within network operations. The study investigates how resilience engineering principles—originally developed in high-risk industries like aviation and nuclear energy—are being adapted for the telecom domain to preempt disruptions, reduce downtime, and enhance service continuity. Furthermore, the review highlights risk management practices used to identify, assess, and mitigate operational vulnerabilities, including human error, cyber threats, hardware failures, and environmental disruptions. It examines the role of automation, predictive analytics, and artificial intelligence in enhancing situational awareness and decision-making in network operations centers (NOCs). The integration of resilience thinking with traditional risk-based models is shown to offer a more holistic and dynamic response to evolving threats, particularly in 5G, edge, and software-defined network architectures. Findings reveal a shift from reactive to anticipatory strategies, emphasizing the importance of designing systems that not only withstand failures but also adapt and recover with minimal impact. The review concludes by proposing a multi-dimensional framework that blends resilience metrics, continuous monitoring, and adaptive control to strengthen telecom network operations in the face of uncertainty. This study contributes to the body of knowledge by bridging two critical disciplines—resilience engineering and operational risk management—and advocating for their systematic integration in telecom environments to achieve greater sustainability, reliability, and operational excellence.