Research on energy efficient fusion-driven routing in wireless multimedia sensor networks
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RESEARCH
Open Access
Research on energy efficient fusion-driven routing in wireless multimedia sensor networks Kai Lin1* and Min Chen2
Abstract The limitation of energy supply is a crucial problem in wireless multimedia sensor networks. In this article, we research and optimize the energy utilization during data collection by adopting mobile agent nodes. First, we demonstrate that the energy consumption of the whole network is affected by the data correlation coefficient for a multimedia sensor network with a random node deployment. Then, we give the method to find the optimized position of mobile agent node for maximizing the energy-saving efficiency by fusion process. Finally, we propose an energy efficient fusion-driven routing (EEFR) based on cluster hierarchy. To obtain a better performance, the cluster structure is divided based on square grid topology. Extensive simulation experiments have been made to evaluate our proposed EEFR with several performance criteria. The results show that EEFR can effectively save energy consumption of network, and the consumption is relatively balanced. Keywords: wireless multimedia sensor networks, energy efficiency, data fusion, cluster hierarchy, fusion-driven routing
1. Introduction Wireless multimedia sensor networks (WMSNs) have been the target of active research with a particular emphasis on high-caliber information collection. Recent rapid development in the sensor, wireless network, multimedia and embedded computing areas now make it possible to deploy a large number of multifunctional and inexpensive multimedia sensor nodes to achieve high quality data acquisition [1]. In general, the sensor nodes of WMSNs are equipped with CMOS camera, microphone, and other kinds of sensors for achieve the fine-grained, accurate information in a comprehensive environmental monitoring. Compared with traditional WMSN, WMSNs can capture the surrounding environment in a variety of media information and has outstanding performance in multimedia signal acquisition and processing. It not only can enhance existing multimedia sensor network applications, but also enable several new applications, such as multimedia surveillance multimedia sensor networks, advanced health care
* Correspondence: [email protected] 1 School of Computer Science and Engineering, Dalian University of Technology, Dalian, Liaoning, China Full list of author information is available at the end of the article
delivery, industrial process control, mobile multimedia sensor networks [2] and so on [3,4]. These sensor nodes are typically lightweight with limited battery capacity, processing power and communication bandwidth. In order to ensure the normal operation of WMSNs, the energy consumption of communication must be maintained in minimum level. During the network operation, data fusion should be considered to eliminate unnecessary communications since the massively deployed sensor nodes generate a huge amount of redundant data, which makes it critical to collect only the valuable data. In traditional fusion architec
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