Sensor Deployment Algorithm for Wireless Underground Sensor Network
LI Lia · Journal of Jilin University · 2007
WUSN(Wireless Underground Sensor Network) can be used in many applications,such as soil maintenance and underground construction protection.To deal with the great attenuation effect to electromagnetic wave caused by soil,the attenuation effect in soil is analyzed and the attenuation factor model of the soil is set up.A novel 3-dimension grid model based sensor placement algorithm,MCC3D(Max Coverage Connectivity 3 Dimension) applied in WUSN,is proposed.This algorithm aims at using minimum sensors to reach the demanded coverage threshold while keep the optimal connectivity performance.The simulation results prove that MCC3D outperforms much better in coverage and connectivity performances than random placement.Under the same limitation of coverage threshold,MCC3D uses 33% less sensors than random placement algorithm,and it outperforms random placement algorithm on network connectivity property a lot.Finally,the effect to signal attenuation caused by the variations of season and weather is briefly described and accordingly solution is proposed.