PERFORMANCE OF RPL PROTOCOL BASED ON NEW OBJECTIVE FUNCTION FOR IOT- WSN

Abstract

The development of routing protocol to manage energy consumption of wireless sensor devices is oneof the active research areas. The main challenge is the resource constraint (e. g. energy). In Internet of Things( IoT) , the devices operate in the presence of these limitations. Thus, an energy- efficient routing protocol isrequired. Routing Protocol for Low- Power and Lossy Network (RPL) is already introduced to enable IoT overWireless Sensor Network. In this paper, a modified routing protocol depending on the maximum number of parentobjective function ( MNP- OF) is proposed. MNP- OF uses a new node metric called Neighboring-metric ( Nmetric).The proposed protocol is called MNP based on Remaining Energy ( MRE) that combines N-metric withthe node remaining energy metric for all nodes to the root node to select the preferred path. The results showedthat MRE achieved up to 94% energy saving compared to RPL protocol in medium and large scale networks,while a reduction of about 33% in average remaining energy in small scale network. MRE showed considerablereductions in the average delay and the number of dead nodes combined with improvements in throughput, numberof control messages, and number of switching parents for large scale network.