Name
Abstract | ||
|---|---|---|
In Delay Tolerant Networks (DTNs), characteristics of mobility model have essential impact on routing protocols design and verification. Most of current studies about network characteristics are derived from theoretical models or small-scale real network traces. Properties of nodes in those networks are simple and can not reflect features in large-scale applications. In addition, few studies focus on modeling large-scale urban DTNs based on the network characteristics. In this paper, we analyze a large-scale urban DTN including traces from 12096 taxies in Beijing City. We observed that inter contact time (ICT) between two nodes satisfies exponential distribution, and the network forms a number of hotspot areas in which the vehicles tend to cluster. Based on the observation, we design a DTN mobility model by introducing characteristics of hotspot area and prove that distribution of ICT in this model also exhibits exponential nature as it is in real urban DTNs. Our further simulation experiment reveals the similarity between the proposed model and urban DTNs. This result thus demonstrates that the model is rational to guide DTN protocols design and verification in large-scale applications. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/LCN.2012.6423647 | LCN |
Keywords | Field | DocType |
network characteristics,statistical distributions,inter contact time,large-scale urban dtns,mobility model,hotspot area,simulation,small-scale real network traces,beijing city,delay tolerant networks,dtn mobility model,vehicular ad hoc networks,large-scale application,dtns,real urban dtns,dtn protocols,routing protocols,vehicular networks,clustering,large-scale urban dtn,network characteristic,large-scale applications,routing protocols design,theoretical model,exponential distribution,hotspot areas | Computer science,Computer network,Mobility model,Probability distribution,Exponential distribution,Cluster analysis,Hotspot (Wi-Fi),Vehicular ad hoc network,Beijing,Routing protocol,Distributed computing | Conference |
ISSN | ISBN | Citations |
0742-1303 | 978-1-4673-1565-4 | 13 |
PageRank | References | Authors |
0.59 | 21 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chunhe Xia | 1 | 63 | 18.30 |
| Dong Liang | 2 | 18 | 1.36 |
| Haiquan Wang | 3 | 330 | 49.55 |
| Min Luo | 4 | 13 | 0.59 |
| Weifeng Lv | 5 | 300 | 43.72 |