A Fast Exact Algorithm for Deployment of Sensor Nodes for Internet of Things

The deployment problem of sensor nodes of Internet of things (IoT) can be abstracted as listing minimal dominating sets of a graph. The problem of listing all the minimal dominating sets in a graph can be converted to the problem of state space search among candidate vertex sets. The search and optimization technologies, such as the bidirectional search and branch cut, can be applied to solve the problem effectively. Our experiments show that the new algorithm can reduce the running time by at least an order of magnitude, compared to a state-of-the-art algorithm for listing all the minimal dominating sets.