Energy Consumption Level by Mobile Sensor Nodes in Wireless Sensor Networks

Due to wireless sensor networks (WSN) characteristics,routing in these networks is a challenging task particularlywhen the wireless nodes, which are energy constrained, aremoving. Mobility in WSNs can cause frequent route changesor breaks. In case of route breaks, each routing protocol reactsdifferently which in turn cause a different pattern in theenergy consumption. Therefore, it is important to consider theimpact of mobility on energy level of sensor nodes to select aproper routing scheme for a particular WSN. In this paper, anattempt has been made to measure energy consumption levelof the sensor nodes while moving through the WSNenvironment on different locations. The main contribution ofthis paper is to compare and analyze performance of themobile nodes using two well-known routing protocols, DSRand AODV, in terms of three performance metrics as energyefficiency, packet delay, and packet lost rate. The comparisonhas been done using NS2 network simulator.

Keywords:

Sensor mobility , energy efficiency , energy consumption level