International Journal of Computer Networks and Wireless Communications (IJCNWC)
Wireless Sensor Network (WSN) is the area where many researchers are focusing. The emerging technology of WSN is expected to provide a broad range of applications, such as battlefield surveillance, environmental monitoring and smart space and so on. Coverage is the important quality of service which is provided by the wireless sensor network. The coverage hole problem is a fundamental issue in WSN. This problem occurs when sensor nodes are arranged randomly in the area, poor installment or nodes whose power weeks and when the design of the network fails.