2025/09/10 by Daniel Meyer, Meyer, Daniel, Lisandro Zambenedetti Granville +3
Engineering · Environmental Science · Social Sciences · #C.2.1 #C.2.3 #Computers and Society (cs.CY) #Disaster Management and Resilience #Emerging Technologies (cs.ET) #FOS: Computer and information sciences #Flood Risk Assessment and Management #Infrastructure Resilience and Vulnerability Analysis #Networking and Internet Architecture (cs.NI)
paper · pdf · doi:10.48550/arxiv.2509.08595
openalex publication_date 2025/09/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper investigates the resilience of mobile communication networks during the extreme flooding that affected Rio Grande do Sul, Brazil, in May 2024. Based on regulatory data and technical insights from operators, the study identifies the leading causes of mobile network disruptions, primarily related to flooding and prolonged power outages. The results reveal the significant vulnerability of modern networks (4G/5G) during the event and the essential role played by legacy technologies (2G/3G) in sustaining basic connectivity under adverse conditions. The findings underscore the necessity of disaster-aware infrastructure planning, taking into account the ongoing significance of legacy systems, diversified power supply strategies, and resilient network designs to enhance service continuity during future crises.