Resource Management of IoT Devices in Restrictive Environments

Rational and optimum use of resources to Internet of Things platforms has underscored new challenges since a common problem for IoT communication is absence of experience in communications where no involving people. An IoT scenario presupposes machines, objects or things are no longer in need of support, supervision, and assistance; however, some issues must be faced, such as communications delay, data synchronization, energy consumption and computing power. This work aims to efficiently and effectively use of network and devices resources. IoT must be independent of entities responsible for interact in cyber-physical systems. A lightweight messaging protocol, agnostic to content and payload, based on Publish/Subscribe technique optimizes network and devices resources and allows independence and autonomy. This work proposes, the use of lightweight Internet protocols to integrate a message broker and Publish/Subscribe messaging transport. The design was validated through firmware to less use of microcontroller from IoT devices. Consequently, logical operations and processed data were less. Finally, test scenario was implemented with major components of the Publish/Subscribe and the design is able to support RESTful architecture. Moreover, it demonstrated data transfer trough MQTT protocol improves: payload, bandwidth and power consumption compared with RESTful techniques. Finally, it offers a path to achieve critical requirements expect anywhere, anytime and improved capabilities to final users and businesses. The proposal aims to align on the principle less is often more.