Redundant Multichannel Public Safety Communication Network for Public Protection and Disaster Relief (PPDR) Organizations

摘要

All Public Protection and Disaster Relief (PPDR) organizations across Europe have multiple similar needs. A common cyber secure voice and data network for PPDR brings synergy and enables interoperability; separate networks are wasting of resources. This paper focuses on future broadband data communication needs of PPDR actors and presents a new fully redundant data communications network structure for Public Safety Communications (PSC). The architecture is decentralized and all critical communication paths have fully redundancy. Although having common physical connections, all network actors and elements (multichannel routers, nodes) are identified as well as every organisation's all user levels and their rights to different data sources are known. The network architecture based on the Distributed Systems intercommunication Protocol (DSiP) is highly fault-tolerant in normal conditions as well as in crises. The software-based approach is independent from different data transmission technologies, from IP core networks as well as from services of telecommunication operators. The solution enables to build a practical and timeless cyber-secure data network for PPDR environment, which being fully decentralized is hard to injure. The networks of different organizations are virtually fully separated, but if wanted they can exchange messages and other information which makes them interoperable.