Opportunistic network routing method based on spectral clustering community division
A technology of community partitioning and spectral clustering algorithm, applied in the field of opportunistic network routing based on spectral clustering community partitioning, can solve the problem of not taking into account the impact of node changes and community, and achieve the effect of improving the success rate of message transmission and reducing network load.
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[0048] The experimental site implemented this time is map simulation, the scene range is 4500x3400 (m^2), all nodes carry Bluetooth devices for data transmission, the simulation time is 12h, the number of nodes is 160, the communication range of nodes is 10m, and the node's own cache is 15M. The node speed is 6.5m / s, and the number of clusters is set to be 4. The flow chart of the technical solution of the present invention is as follows figure 1 shown.
[0049] 1) Set the number of community divisions k, community vector C, n mobile nodes {1,2,...,n}, set timer RT and contact sequence N(T) for each node, when the simulation starts, n nodes move randomly on the map;
[0050] The representation of the contact sequence N(t) is as follows:
[0051] N ij (T)={(on l ,off l ),l=1,2,...,N}
[0052] N ij (T) represents the contact record sequence of nodes i and j in the time period [0, T], where the two-tuple (on l ,off l ) represent the start and end time of the first contac...
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