Exploitation of Social Behavior Patterns of Mobile Users

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Social-Aware Data Dissemination in Opportunistic
Mobile NetworksWei Gao and Guohong Cao
Introduction Motivation

• Opportunistic Mobile Networks
• Mobile platforms smartphone, vehicle, sensor
• Inter-connection based on opportunistic contact
• Communication range of WiFi/Bluetooth radio
• Applications mobile cyber-physical systems
• Remote sensing
• Disaster/emergency recovery
• Military scenarios

• Data dissemination carry-and-forward
• Network uncertainty probabilistic contact
  prediction
• Network quality limited network information
• Network subjectivity interests of mobile users

• Exploitation of Social Behavior Patterns of
  Mobile Users

• Sociological concepts
• Centrality social importance of a user
• to facilitate communication
• Community user groups based on
• their social links

• Social links among users
• Online social network explicit personal
  acquaintances
• Mobile users implicitly exhibited by their
  contact process
• Similarity of social context time/location

Social Contact Patterns TON12, TMC12, ICNP10,
MobiHoc09

• Goal
• Infer social links from users
• contact process
• Problem
• unicast, multicast
• Probabilistic contact prediction
• Estimating pairwise contact
• probability

• Model pairwise contact patterns
• Cumulative patterns Poisson process
• Transient patterns On/off periods

• Solution centrality metric

Number of nodes
Pairwise contact probability
Social Interest Patterns ICDCS12, INFOCOM11

• Goal
• Disseminating data only to users
• being interested in the data
• Problem
• data diffusion, cooperative caching
• Estimating users interests in data

• Solution interest-aware centrality metric

• Model
• Probabilistic user interest