Knee-joint exoskeleton control system design using adaptive barrier function controller

Current <span>studies predict there will be approximately 75 billion internet of things (IoT) devices connected to the by 2025. Such enormous IoT networks require efficient communications systems support those running well. We consider one emerging technologies that is widely used for wireless wide-area network, i.e., long range (LoRa). By default, LoRa wide area networking (LoRaWAN) has been equipped with a medium access control (MAC) protocol, however, several studies showed LoRaWAN might not most excellent choice certain applications low-power example, peer-to-peer and mesh networks. In this work, we propose an application layer multi-communication (LMC) protocol resolve multiple problems in without employing LoRaWAN. The algorithm was embedded tested on energy-constraint as building blocks systems. Our examination controlled environment proposed achieved 94% averaged packet reception ratio (PRR) 33.3 hours longer battery lifetime compared default operation (without LMC algorithm) also introduced time air (ToA) network mainly due its best-effort service scenario applied algorithm.</span>