Dynamic duty cycle-based Wireless Sensor Network for underground pipeline monitoring

The Wireless Sensor Network (WSN)-based pipeline monitoring systems are expected to have long life time in order to make their deployment cost-effective. In reality, wireless transceivers are considered one of the main consumers of energy in individual sensor nodes of WSNs. The duty cycling technique which puts transceiver module into sleep state for the majority of sensor node´s operating time is considered a highly effective method to reduce energy consumption. In this paper we present the use of Wake-on-Radio (WoR) for reduction of used energy and conducted power consumption experiments using CC430-based WSN nodes. The results show promising performance improvement when using WoR in the CC1101 radio transceiver of CC430. Then, an adaptive duty cycle algorithm based on the WoR functionality, which enables sensor nodes to dynamically adjust their WoR duty cycles according to the real-time wireless channel conditions in achieving reduced power consumption, was proposed.