Automotive Electronics
Wireless Automotive Communications
Thomas Nolte and Hans Hansson MRTC, Department of Computer Science and Electronics M¨ lardalen University a V¨ ster˚ s, SWEDEN a a Lucia Lo Bello RETISNET Lab, Department of Computer Engineering and Telecommunications University of Catania Catania, ITALY
Abstract
This paper presents an overview of wireless automotive communication technologies, with the aim of identifying the strong candidates for future in-vehicle and inter-vehicle automotive applications. The paper first gives an overview of automotive applications relying on wireless communications, with particular focus on telematics. Then, the paper identifies the key networking technologies used for in-vehicle and inter-vehicle applications, comparing their properties and indicating future challenges in the area of wireless automotive communications, with a focus on realtime aspects.
inter-vehicle communications are presented and compared, pointing out real-time related aspects, in Section 3. Finally, the paper is summarised in Section 4.
2 Telematics
Automotive telematics enables the deployment of a number of new services and applications integrating wireless communication technology into a vehicle. As a result, the vehicle acquires new capabilities and offers more services to its users. Examples of telematics services and applications are: • Navigation and traffic information systems - A vehicle equipped with a telematics unit can direct a driver to a desired location, while providing real-time traffic information for a given route. • Voice recognition and wireless Internet connection Drivers and their passengers can receive and send voiceactivated e-mails while on the road. • Safety systems - Collision avoidance systems, unsafe driving profiling, intelligent airbag deployment systems. Communications between the vehicle and its surroundings, e.g., other vehicles and roadside objects. Automatic airbag deployment notification. Accident and roadside assistance. An
Thomas Nolte and Hans Hansson MRTC, Department of Computer Science and Electronics M¨ lardalen University a V¨ ster˚ s, SWEDEN a a Lucia Lo Bello RETISNET Lab, Department of Computer Engineering and Telecommunications University of Catania Catania, ITALY
Abstract
This paper presents an overview of wireless automotive communication technologies, with the aim of identifying the strong candidates for future in-vehicle and inter-vehicle automotive applications. The paper first gives an overview of automotive applications relying on wireless communications, with particular focus on telematics. Then, the paper identifies the key networking technologies used for in-vehicle and inter-vehicle applications, comparing their properties and indicating future challenges in the area of wireless automotive communications, with a focus on realtime aspects.
inter-vehicle communications are presented and compared, pointing out real-time related aspects, in Section 3. Finally, the paper is summarised in Section 4.
2 Telematics
Automotive telematics enables the deployment of a number of new services and applications integrating wireless communication technology into a vehicle. As a result, the vehicle acquires new capabilities and offers more services to its users. Examples of telematics services and applications are: • Navigation and traffic information systems - A vehicle equipped with a telematics unit can direct a driver to a desired location, while providing real-time traffic information for a given route. • Voice recognition and wireless Internet connection Drivers and their passengers can receive and send voiceactivated e-mails while on the road. • Safety systems - Collision avoidance systems, unsafe driving profiling, intelligent airbag deployment systems. Communications between the vehicle and its surroundings, e.g., other vehicles and roadside objects. Automatic airbag deployment notification. Accident and roadside assistance. An
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