A data fusion scheme with delay constraint in wireless sensor networks

In order to improve the QoS performance of traditional data fusion scheme which generally only consider the energy consuming problem and network lifetime, in this paper, we propose a model of wireless sensor network under delay constraint. In this model, we prove that optimizing power in WSN can be regarded as the NP problem. So we present the optimal data fusion scheme BSPT algorithm under QoS constraint based on balancing minimum spanning tree and shortest path tree. Finally, According to simulate and compare the other algorithms under several constraints in traditional network with SPT, it proves that the SPT data fusion algorithm has better performance in delay, complexity of algorithm and energy saving.