A Survey: Coverage Sensing Ratio for Homogenous-Heterogeneous Network in Wireless Sensor Network

Wireless sensor networks (WSN) have been widely studied and usefully employed in many applications such as monitoring environment, embedded system and so on. Coverage preservation, unique ID assignment and extension of network lifetime are important features for wireless sensor networks. In this survey, coverage control models fall for various approaches like clustering, evolutionary, QoS, coverage sensing, network failure, higher energy consumption of nodes in homogenous and heterogeneous network which minimized network performance based approaches is discussed.