tailieunhanh - báo cáo hóa học:" Research Article An Energy Consumption Optimized Clustering Algorithm for Radar Sensor Networks Based on an Ant Colony Algorithm"

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 An Energy Consumption Optimized Clustering Algorithm for Radar Sensor Networks Based on an Ant Colony Algorithm | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 627253 7 pages doi 2010 627253 Research Article An Energy Consumption Optimized Clustering Algorithm for Radar Sensor Networks Based on an Ant Colony Algorithm Ting Jiang Wei Zang Chenglin Zhao and Jiong Shi Key Laboratory of Universal Wireless Communications Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China Correspondence should be addressed to Ting Jiang tjiang@ Received 28 November 2009 Accepted 4 March 2010 Academic Editor Lingming Wang Copyright 2010 Ting Jiang et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. We optimize the cluster structure to solve problems such as the uneven energy consumption of the radar sensor nodes and random cluster head selection in the traditional clustering routing algorithm. According to the defined cost function for clusters we present the clustering algorithm which is based on radio-free space path loss. In addition we propose the energy and distance pheromones based on the residual energy and aggregation of the radar sensor nodes. According to bionic heuristic algorithm a new ant colonybased clustering algorithm for radar sensor networks is also proposed. Simulation results show that this algorithm can get a better balance of the energy consumption and then remarkably prolong the lifetime of the radar sensor network. 1. Introduction Radar sensor networks RSN 1 are the networks of distributed radar sensors which collaboratively operate and are deployed ubiquitously on airborne surface and unmanned vehicles in a large geographical area. Radar sensors have capabilities for radar sensing signal processing and wireless communications. In RSN radar sensors are networked together in an ad-hoc .