Road probing: RSU assisted data collection in vehicular networks

Authors:
Lin Yang;Jingdong Xu;Gongyi Wu;Jinhua Guo
Affiliations:
Computer Science and Technology Department, Nankai University, Tianjin, China and Computer and Information Science Department, University of Michigan-Dearborn, Dearborn;Computer Science and Technology Department, Nankai University, Tianjin, China;Computer Science and Technology Department, Nankai University, Tianjin, China;Computer and Information Science Department, University of Michigan-Dearborn, Dearborn
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

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Abstract

With the adoption of sensing technology, vehicles are able to gather information about driver's environment, like speed, temperature, moisture and road condition, etc. The state-of-the-art wireless technologies also provide vehicles with the ability of communicating to their neighboring vehicles on the road, as well as the static frameworks on the road side. Vehicular Sensor Network (VSN) is an emerging paradigm in vehicular networks. In this paper, we propose a new VSN scenario, Road Probing. The Road Side Unit (RSU) initiates the probing process and selects the passing by vehicles as probes to collect traffic and environment information. The selected vehicles sense the desired data and forward it back to the RSU in a multi-hop fashion. A dynamically growing one-dimension probing chain originated from the RSU is formed by participated vehicles as the probing process going on. A mobility profile based probe selection method is developed to improve this chain's connectivity as it's the key issue to assure the quality of data collection. The performance of Road Probing is demonstrated by simulation experiments.