Fog computing enabling geographic routing for urban area vehicular network
Geographic routing scheme has received considerable attention recently. We present a position-based routing scheme called improved geographic routing (IGR) for the inter-vehicle communication in city environments. IGR uses the vehicular fog computing to make the best utilization of the vehicular communication and computational resources. IGR consists of two modes: (i) junction selection according to the distance to the destination and the vehicle density of each street, and (ii) an improved greedy forwarding strategy to transmit a data packet between two junctions. In the improved greedy forwarding mode, link error rate is considered in the path selection. Simulations are conducted to evaluate the performance of IGR. Simulation results show that IGR has a significant improvement in terms of the achieved packet rate and end-to-end delay.
KeywordsGeographic routing City environment Vehicle density Link error rate
This work is supported by National Natural Science Foundation of China (Grant No. 61402101, 61672151), Shanghai Municipal Natural Science Foundation (Grant No. 14ZR1400900), Fundamental Research Funds for the Central Universities (Grant No. 2232015D3-29). A Project Funded by the Priority Academic Program Development of Jiangsu Higer Education Institutions, Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology.
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