Node failure detection and path repairing scheme in virtual circuit routing algorithm for wireless ad hoc micro sensor networks

Abstract

Routing algorithms haveshowntheir importance in the power aware wireless micro-sensor networks. In this paper,we presenttheimproved virtuial circulit routingalgorithm (IVCRA)implemented in temperatuire sensorapplication developed bytus. We introduce a method todetect nodefailure andthen to repair thepathtoroutte thedatapack-et safely to basestation. Weverified itbysimulating inTOSSIM andthenimplementing on real motesnetwork. The motes are fromBerkeley USA andare being operated byusingTinyOS-operating systemand nesClanguage. Energy analysis showsthat IVCRAis energy efficient. ForIVCRA,we theninclude the packet sizerecommended byZigbee/IEEE 802.15.4 standard, an emerging standard forwireless sensor networks, alongwithftatures ofitsNetwork Layer. We prove thereliabilitv ofnetwork withIVCRA. Energycfficiencies fbrdifferent packet sizereveal that ourpacket size isoptimal.