Enhancing network lifetime of Wireless sensor networks by Avoiding energy hole problem

Abstract

The subject of this dissertation is to avoid energy hole problem in newlinewireless sensor networks with the objective of enhancing the lifetime of the newlinenetwork In wireless sensor networks large numbers of low powered sensors newlineare deployed for short distance communication in single hop fashion that newlineleads to huge communication cost To avoid the communication cost in term newlineof power a multihop communication is adopted which consumes less power newlinecompared to single hop communication The sensor nodes behave as a source newlineas well as data router for mobilizing the load When the load flows from newlinemany to one sensor the nodes around the sink are heavily loaded and hence newlineloses their energy faster that causes energy hole problem around the sink newlineAt the first stage a novel sector based clustering approach with a newlinecustomized load distribution ratio is proposed to avoid energy hole problem newlineIn this approach the area is divided into coronas and further partitioned into newlinesectors which results in the formatio newline newline