COVERAGE HOLE DETECTION AND HEALING IN WSN - A SURVEY

Author Name : Ms. V. Kavitha and Dr. G. Kannan
Volume : I, Issue :XI,July - 2016
Published on : 2016-07-24 , By : IRJI Publication

Abstract :

A Wireless Sensor Network contains a network of wireless sensor nodes working in a hostile environment. The lifetime of the WSN depends on number of nodes, sensing range and transmission range of sensor node, connectitvity of the nodes and fault tolerance. The paper reviews on the different types of sensor node deployment ,hole occurrence in network due to improper deployment of sensor nodes, types of holes ,coverage hole detection mechanisms , coverage hole healing and coverage enhancement techniques.