In comparison to other communication networks, Vehicular Ad-hoc Networks (VANETs) have unique requirements with respect to applications, types of communication, self-organization and other issues. In order to meet these requirements, the structuring of functionalities into protocols and their interaction must be rethought. The traditional approach of decomposition of functionality into protocol layers (layered approach) and a protocol design specifically tailored to the needs of VANETs (unlayered approach) leads to two extreme and opposed manifestations of a potential VANET protocol architecture. From these two extreme approaches the authors derive a stack-based VANET protocol architecture that combines the strengths of both. Among the key features of this protocol architecture are VANET-specific protocol layers, a staircase approach for interaction among layers, and the use of an information connector for the exchange of cross-layer information using the publisher/subscriber pattern. This protocol architecture provides a clear modular structure with flexibility for protocol interaction and information exchange at a reasonable complexity.
Thoughts on a protocol architecture for Vehicular Ad-hoc Networks
Gedanken zur Protokollarchitektur für ein Fahrzeug-Ad-Hoc-Netz
2005
5 Seiten, 3 Bilder, 18 Quellen
Aufsatz (Konferenz)
Englisch
Thoughts on a Protocol Architecture for Vehicular Ad-Hoc Networks
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