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- W2960165369 abstract "High power consumption of Internet of Things (IoT) nodes and the cost of implementing existing IoT architectures usually hamper the successful deployment of IoT solutions. Also, at locations with problematic or weak Internet presence where it takes longer time to transmit node data to the Internet, the resulting increase in power consumption hinders the development and deployment of IoT solutions. This paper therefore presents an IoT architecture that enables the development of low cost and energy efficient IoT solutions across various application domains even at the face of weak Internet signal. Existing IoT hardware platforms were first compared on the basis of on-board connectivity and microcontroller types and cost in order to select an appropriate hardware platform for the architecture. In addition, a suitable application layer protocol for end-to-end wireless communications was selected. These led to the respective selection and adaptation of ESP8266 module which integrates both WiFi and Tensilica L106 32-bit RISC processor on a single chip at US$3 per module and of Message Queue Telemetry Transport (MQTT) application layer protocol which is lightweight and data agnostic. A time based room temperature and humidity monitoring IoT application was set up using both the proposed IoT architecture and the existing MQTT architecture in order to compare power consumption. Results show that the power consumption of a monitoring node was reduced by a factor of 3.3 which ultimately resulted in a reduction in the cost of operating the nodes when the proposed architecture was used." @default.
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- W2960165369 date "2019-01-01" @default.
- W2960165369 modified "2023-09-27" @default.
- W2960165369 title "Development of an MQTT-based IoT Architecture for Energy-Efficient and Low-Cost Applications" @default.
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