Research on Campus Mobile Model Based on Periodic Purpose for Opportunistic Network

In the study of opportunistic network, the design of mobile model directly affects the architecture of opportunistic network and the efficiency of routing algorithm. On the discussion of human movement characteristics, this paper analyzed the characteristics of students' movement in campus environment and presented a campus mobile model based on periodic purpose, Periodical-Purpose Campus Mobility Model (PPCMM). The campus scene was divided into five regions. Nodes choose destination location through objective probability. The number of nodes was counted in different regions and different time. The simulation results show that the model reflects the purposiveness and periodicity of the students' movement and it is in accord with the actual students' movement.