Specification of the communication system and Guideline for choice of Technology

This deliverable from Task 3.4 will define draft technical specification of the communication system including overall architecture, definition of interfaces with user applications, addressing, QoS requirements, security, specification of end-to-end protocols and interfaces between sub-systems and of the principles for operation and supervision of the communication system as well as dimensioning rules using traffic models. This deliverable from Task 3.5 will define the guideline to choose suitable technologies, and as first step, identify those used for the prototypes. In addition, a guideline for standardised technologies will be provided. The guideline will take into consideration the characterisation of radio features in urban and railway environments, taking into account the specific nature of these environments.