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This paper presents a new way of addressing and routing for mobile ad hoc networks on the basis of contextual information such as air pressure, brightness, wind direction and strength, or GPS position. The most common use case of context-based addressing is group communication: A participant sends a message to an a priori unspecified set of recipients, but indicates the context in which the message...
In this paper, we propose a system to ensure privacy for users of mobile location based services. The system is based on doubles i. e. are virtual users in the vicinity of the real user. In order to camouflage the identity of a user and its movements, we introduce changing zones based on mix zones which exploit the fuzziness of GPS location positioning. The doubles themselves have access to real movement...
Today, a huge variety of sensors is built into vehicles enabling them to obtain a view of their surroundings based on locally observed data. With VANETs (vehicular ad-hoc networks) as an emerging technology, it is possible both to disseminate data to other vehicles and to collect information in order to improve their own picture of the current situation. However, distributed applications based on...
In this paper, we discuss collaborative, context-aware applications for vehicular ad-hoc networks (VANETs). Inter-networked cars exchange information about sensor data in order to increase traffic safety. This infrastructure can also be used for personalized information services for drivers. We outline possible applications and give more detailed information on a context-aware gas station recommender...
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