Platooning protocol definition and Communication strategy (D2.8 ENSEMBLE)
This deliverable provides a specification of the V2X communication protocol to enable platooning using the wireless communication standard ITS-G5. The protocol specifies how vehicles inform each other about their ability to form a platoon, and which data has to be exchanged when executing the actual procedure of joining, driving in the platoon and leaving a platoon. It includes messages and how to exchange them to allow for the aforementioned situations.
In ENSEMBLE, a new facilities layer protocol supporting the platooning application is developed. This makes use of already standardized lower layer protocols in ETSI TC ITS. The platooning protocol uses already available message types and signals, and where necessary new ones are introduced. The protocol logic for joining, platooning, and leaving has been derived from the use cases in deliverable D2.2 of ENSEMBLE. The available security framework for cooperative intelligent transport system (C-ITS) in Europe is used for signing and verifying unencrypted messages to establish a trust domain. In addition, the security is extended with encryption of platoon application data using symmetric keys. Deliverable 2.9 will specifically treat security in platooning.
It should be noted that parts of this deliverable might be subject to changes such as the specification
of messages, data elements, and the security approach.