A Routing Algorithm Based on Node Credibility for Wireless Sensor Networks

摘要

In order to increase the energy efficiency of sensor nodes and ensure the accuracy of data transmitting, a Routing Algorithm based on Node Credibility (NCRA) for wireless sensor networks is proposed in this paper. Based on the energy aware mechanism, NCRA algorithm builds node credibility function and sets threshold of energy for changing transmitting node, so transmit node with higher link quality and less even no congestion can be chosen, and the routing can also dynamic local adjust. Simulation results show that, NCRA can ensure lower end-to-end delay, improve the reliability of data transmitting in networks, and extend the network lifetime significantly.