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Histogram-Based Density Discovery in Establishing Road Connectivity

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Histogram-Based Density Discovery in Establishing Road Connectivity. Kevin Lee, Jiajie Zhu, Jih Chung Fan, Mario Gerla University of California, Los Angeles VNC, 10/28/09. Why Do We Need Density?. Using density information to avoid traps in VANET - PowerPoint PPT Presentation
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Nodes bunched up at the intersection => Can’t assume uniform density

What is a good density algorithm that allows us to establish accurate

connectivity of the road?

Credit: M. Fiore and J. H¨arri, ACM MobiHoc 2008

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1 2 0 01 2 ? 01 2 0 0

1 2 1 0

1 2 1 0 Segment center1 2 0 0

1 2 1 0

SegSizeNiRadioRange

5NOT CONNECTED

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RL 900m RL 1000m

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RL 900m RL 1000m

SegSizemax = 325m SegSizemax = 375m

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