Communications means the set of terminals, equipment, networks and infrastructures devoted to transmit data, whatever they are, together with technologies and applications layer supporting the data exchange. The need is to find secure turn-on-key solutions, integrated and interoperable for voice and data transmission, able to merge different enabling technologies, including digital radio standard, such as TETRA and DMR, and wide band wireless radio last generation, such as LTE, among one another and with satellite technologies.
In particular, it is necessary to design multi-technological network solutions assuring a transparent connectivity to the user in any circumstances, and able to improve the effi ciency for public security operations, emergency care services, civil protection agencies, and homeland security applications.
Answering the growing need of security, dedicated technological area have to be developed in order to face the specific requirements in the field, increasing efficiency, security, quality, and respondness of the operations.
The solutions to the security problem shall be reliable, flexible, and robust, and able to interface different networks, systems and tools.
The applications include telemetry, automatic vehicle localisation, video streaming, data base access, alerting diffusion.
The number of operational scenarios leads to the following main requirements for the communications:
- Interoperability, extended to several levels (among different groups of actors, in a join operations, law enforcement forces, practices, etc.);
- Communications Security, data exchanged in a manner able to avoid data loss, corruption or dispersion of the transmitted information;
- Availability, in terms of Quality of Service for the transmitted information;
- Resiliency, in term of robustness of communication infrastructure to operate in critical situations;
- Fast deployment.
The Communications Technologies include:
- Terminal and Equipment;
- Communications Terminals:
Analogue radio (HF, VHF, UHF, etc.);
Digital radio (APCO);
Satellite ground segment;
Routing e Switching equipment;
Datalink for Robotised platform;
- Communications Infrastructures and Networks:
Digital radio network;
WiFi Communications network (WLAN, MANET, Mesh network);
Short-Range Communications (RFID, Bluetooth, UWB);
Cell phone Communications network (GSM, UMTS);
Integrated network (e.g. integrated terrestrial/satellite Software Defined Radio);
- Technologies and Applications Layer:
Data Compression/Transmission Technologies (Availability);
Information Broadcasting in critical or emergency situations (Availability)
Middleware, for existing networks and systems integration in a common layer (Interoperability);
Jamming resistance (Security);
Network re-confi gurability (Resiliency);
Network Centric Communications.
Different services and applications shall assure requirements of Interoperability, Resiliency, Availability, and Security necessary in the Communications domain.