車載網路中路徑感知地理位置服務系統

TLS: Trajectory-aware Location Service for Vehicular Ad-Hoc Networks

吳柏毅(Wu, Boyi)

指導教授 ： 黃啟富

國立中正大學/工學院/資訊工程學系/碩士(2013年)

摘要

無資料

關鍵字

位置更新 ； 位置詢問 ； 位置服務 ； 路徑資訊 ； 車載網路

並列摘要

Vahicular Ad Hoc Networks (VANETs) emerged as a new research area recently which can provide many convenient services for our daily life, such as driving safety and journey guiding in our daily life. To facilitate these services, routing is a basic requirement of VANETs. Position-based routing protocols are especially suitable for highly dynamic topology of VANETs. The prerequisite for position-based routing is the location service which aims to management location information of vehicles and provide the information to vehicles before routing data communication. In a location service, location updates of vehicles usually acquire most overhead in order to obtain high location query accuracy. In this thesis, we proposed a trajectory-aware location service using trajectory planed by GPS navigation system to decrease update overhead. The planed trajectory can predict location of a vehicle at any specific time which can reduce frequent location updates. We also proposed tolerant mechanism to handle prediction inaccuracy due to the velocity variation. Our simulation results show that the proposed location service can decrease lots location update overhead while keeping high location query success rate.

並列關鍵字

location service ； trajectory ； Vehicular Ad Hoc Networks ； location query ； location update

參考文獻

trajectory-based routing protocol for rural vehicular ad hoc networks. In International

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Challenges in Routing and Data Dissemination in Vehicular Ad-Hoc Networks".