Research Article

Exploiting Temporal and Spatial Regularities for Content Dissemination in Opportunistic Social Network

Table 2

Simulation parameters.

ParametersDescriptionDefault values

WorldSizeScenario area600800 (m2)
EndTimeSimulation time7(days)
NrofHostsNumber of nodes90
Interface TypeCommunicationSimpleBroadcast
Transmit SpeedBandwidth2 Mbps
Transmit RangeTransmission range10~20m
Movement ModelMovement model of a nodeShortestPathMapBasedMovement
Mobility SpeedWalking speed of nodes0.5~1.5(m/s)
Message SizeSize of a message500~1024(KB)
Message IntervalGeneration interval of data messages25∼35(sec)
Message TTLThe time to live value300 (min)
NrofCopies LNumber of copies for binay spray and wait6
Number of keywordsNodes contain the number of keywords5
The minimal size of the community, containing the number of nodes1
mPlaces where nodes can move into or out5
Preset threshold for constructing interest community0.3