Decentralized Position Verification in Geographic Ad Hoc Routing

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Executive Summary

Inter-vehicle communication is regarded as one of the major applications of Mobile Ad hoc NETworks (MANETs). Compared to MANETs or Wireless Sensor Networks (WSNs), these so called Vehicular Ad hoc NETworks (VANETs) have unique requirements on network protocols. The requirements result mainly from node mobility and the demands of position-dependent applications. On the routing layer, those requirements are well met by geographic routing protocols. Functional research on geographic routing has already reached a considerable level, whereas security aspects have only been recently taken into account. Position information dissemination has been identified as being crucial for geographic routing since forged position information has severe impact regarding both performance and security.

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