Research On Localization And Coverage Control Technology Of Wireless Sensor Networks

Science 1990s, this technology has been applied to environmentalology, medicine, military and other fields. In many related theory and application research, nodes localization and coverage control technology is the importance support technology of WSN.This thesis makes an analysis on QUAD first, brings forward IQUAD which focuses on the nodes localization in dynamic net topology. IQUAD is based on the relocation mechanism, distinguishes the localization process as two parts by the update ratio of net nodes, keeps the flexibility and facticity of the result compared with real net topology.As the significant way to saving nodes energy, coverage control improved coverage ratio and prolong survival time of the networks. This thesis analyses LDCC first, brings forward the improved algorithm-ILDCC, which is based on communication protocol of IQUAD, considers energy consumption of the whole networks instead of a single node, adds the judgment of energy weight and a rational redundancy estimate.The simulation experiment is based on Matlab, thesis analyses the specific experimental procedure, and the results show that the location precision is advanced 10% and the networks survival time is prolonged 20%.