A performance comparison of multi-hop wireless ad hoc network routing protocols
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Scenario-based performance analysis of routing protocols for mobile ad-hoc networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
On-Demand Multicast in Mobile Wireless Networks
ICNP '98 Proceedings of the Sixth International Conference on Network Protocols
The changing usage of a mature campus-wide wireless network
Proceedings of the 10th annual international conference on Mobile computing and networking
SIGMETRICS '05 Proceedings of the 2005 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Pocket switched networks and human mobility in conference environments
Proceedings of the 2005 ACM SIGCOMM workshop on Delay-tolerant networking
DTN routing as a resource allocation problem
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Crossing over the bounded domain: from exponential to power-law inter-meeting time in MANET
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Study of a bus-based disruption-tolerant network: mobility modeling and impact on routing
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Analysing delay-tolerant networks with correlated mobility
ADHOC-NOW'12 Proceedings of the 11th international conference on Ad-hoc, Mobile, and Wireless Networks
Evaluation of collaborative selfish node detection in MANETS and DTNs
Proceedings of the 15th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Social-aware multicast in disruption-tolerant networks
IEEE/ACM Transactions on Networking (TON)
Analytical modeling of link duration for vehicular ad hoc networks in urban environment
Proceeding of the tenth ACM international workshop on Vehicular inter-networking, systems, and applications
Inferring human mobility patterns from taxicab location traces
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
On Modeling The Impact of Selfish Behaviors on Limited Epidemic Routing in Delay Tolerant Networks
Wireless Personal Communications: An International Journal
Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems
Performance analysis of epidemic routing in DTNs with limited forwarding times and selfish nodes
International Journal of Ad Hoc and Ubiquitous Computing
Optimal management of dynamic information in Delay Tolerant Networks
The Journal of Supercomputing
ExMin: A routing metric for novel opportunity gain in Delay Tolerant Networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
A Fast Model for Evaluating the Detection of Selfish Nodes Using a Collaborative Approach in MANETs
Wireless Personal Communications: An International Journal
Optimal Routing Control in Delay Tolerant Networks with Time-Varying Fees
Wireless Personal Communications: An International Journal
Analysis of Link Life Time in Vehicular Ad Hoc Networks for Free-Flow Traffic State
Wireless Personal Communications: An International Journal
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Inter-contact time between moving vehicles is one of the key metrics in vehicular ad hoc networks (VANETs) and central to forwarding algorithms and the end-to-end delay. Due to prohibitive costs, little work has conducted experimental study on inter-contact time in urban vehicular environments. In this paper, we carry out an extensive experiment involving thousands of operational taxies in Shanghai city. Studying the taxi trace data on the frequency and duration of transfer opportunities between taxies, we observe that the tail distribution of the inter-contact time, that is the time gap separating two contacts of the same pair of taxies, exhibits a light tail such as one of an exponential distribution, over a large range of timescale. This observation is in sharp contrast to recent empirical data studies based on human mobility, in which the distribution of the inter-contact time obeys a power law. By performing a least squares fit, we establish an exponential model that can accurately depict the tail behavior of the inter-contact time in VANETs. Our results thus provide fundamental guidelines on design of new vehicular mobility models in urban scenarios, new data forwarding protocols and their performance analysis.