The loose connectivity critical condition to ensure coverage and connectivity for WSN localized area coverage algorithm

The coverage control technology is the one of the fundamental technologies of wireless sensor networks, and is mainly concerned how to prolong the network lifetime on the basis of meeting user sense demands. Localized area coverage algorithm in the study of area coverage technology is gradually becoming attention, for its less traffic and lower single-node computation. Nevertheless, the existing localized area coverage algorithm excessive depends on connectivity critical condition proposed by Xing. It is usually concerned about how to improve the perceived quality to coverage full area, ignores further studying for the network node connectivity. The critical condition is from the perspective of single node connectivity, resulting in limited conditions for algorithm application. Consequently, the connectivity issue is introduced firstly for localized area coverage algorithm. Secondly, the loose connectivity critical condition to ensure coverage and connectivity is re-analyzed from the perspective of network connectivity. Simulation experiment shows this loose critical condition can maintain nodes connectivity based upon the ensuring overall area coverage.