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Báo cáo hóa học: "Research on energy efficient fusion-driven routing in wireless multimedia sensor networks"

Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học đề tài : Research on energy efficient fusion-driven routing in wireless multimedia sensor networks | Lin and Chen EURASIP Journal on Wireless Communications and Networking 2011 2011 142 EURASIP Journal on . http jwcn.eurasipjournals.eom content 2011 1 142 Wireless Communications and Networking a SpringerOpen Journal 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