Abstract
In recent years, wireless multimedia sensor networks (WMSN) have attracted considerable attentions because of the extensive applications of providing audio-visual information conveniently. However, the traditional routing protocols are not directly applicable to WMSN due to the disadvantages on real-time or energy cost. The routing based on combination of clusters and data fusion provides an effective approach to improve the efficiency of data transmission. Consequently, this paper proposes a novel data fusion-oriented routing protocol, which takes the degree of image difference into consideration when clustering. And meanwhile, the cluster-head is rotated periodically within a cluster, for the purpose of the establishment of data fusion tree which is responsible for the data transmission and redundancy elimination. The simulation results show that the proposal achieves a better performance on energy efficiency, network delay and loading balance, and simultaneously prolongs the network lifetime, compared with other typical protocols.
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