Coverage enhancement using fuzzy logic in a distributed Wireless sensor network

Abstract

The work deals with the healing of the coverage hole identified in a location unaware network using fuzzy logic. The hole identification is done based on the Delaunay Triangulation method and the Empty circle concept. The main contribution here is that the healing of the coverage hole is done on a location unaware network based on the energy, angle and distance of the nodes involved in the healing process using the fuzzy rule set. Only the partial location information like the distance between the nodes is used. Redundant nodes are identified using the depth of angle formed between any two nodes. The boundary nodes of the hole along with their one hop neighbors take part in the healing process. This fastens the healing process with reduced energy consumption.