A Two-step Barrier Coverage Redeployment Strategy for Hybrid Sensor Networks

In wireless sensor networks (WSNs), the strong barrier coverage might become weak or even invalid due to node failure. Relocating the mobile sensor nodes to heal the barrier gap is an effective redeployment strategy. In order to decrease the moving energy consumption, we design a two-stage hybrid nodes redeployment (THNR) based on the virtual barrier curve concept to search the barrier gaps in dir...