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Báo cáo hóa học: " Research Article Collaborative Area Monitoring Using Wireless Sensor Networks with Stationary and Mobile Nodes"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Collaborative Area Monitoring Using Wireless Sensor Networks with Stationary and Mobile Nodes | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009 Article ID 750657 16 pages doi 10.1155 2009 750657 Research Article Collaborative Area Monitoring Using Wireless Sensor Networks with Stationary and Mobile Nodes Theofanis P. Lambrou and Christos G. Panayiotou KIOS Research Center for Intelligent Systems and Networks Department of Electrical and Computer Engineering University of Cyprus Nicosia 1678 Cyprus Correspondence should be addressed to Theofanis P. Lambrou faniseng@ucy.ac.cy Received 1 August 2008 Revised 10 December 2008 Accepted 4 March 2009 Recommended by Frank Ehlers Monitoring a large area with stationary sensor networks requires a very large number of nodes which with current technology implies a prohibitive cost. The motivation of this work is to develop an architecture where a set of mobile sensors will collaborate with the stationary sensors in order to reliably detect and locate an event. The main idea of this collaborative architecture is that the mobile sensors should sample the areas that are least covered monitored by the stationary sensors. Furthermore when stationary sensors have a suspicion that an event may have occurred they report it to a mobile sensor that can move closer to the suspected area and can confirm whether the event has occurred or not. An important component of the proposed architecture is that the mobile nodes autonomously decide their path based on local information their own beliefs and measurements as well as information collected from the stationary sensors in a neighborhood around them . We believe that this approach is appropriate in the context of wireless sensor networks since it is not feasible to have an accurate global view of the state of the environment. Copyright 2009 T. P. Lambrou and C. G. Panayiotou. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium .