Cluster and set topology control on virtual backbone for coal mime

In this paper, we consider the relay nodes as the virtual backbone to make the network topology of energy conservation and efficiency, and present a Clusters diversity topological control algorithm CHS; The different parts of the algorithm running on the relay nodes and sensor nodes make the computational complexity of the sensor nodes to be the linear complexity. Simulations show that the life cycle of a mixed network is twice longer than that of a single network.