Redes de sensores inalámbricos para IoT: algoritmo para el acceso al canal en topologías lineales que operan con el protocolo IEEE 802.15.4.

Abstract

The objective of this work is to develop and implement a channel access algorithm using the IEEE 802.15.4 protocol in a prototype with linear topology, so this work consists of three main sections. In the first chapter, a brief introduction to the topic is given and the main motivations for this work are presented, as well as its scope and objectives to be met. Subsequently, in the theoretical framework, the most relevant and necessary topics are reviewed in the most summarized way possible in order to fulfill the proposed purpose. In the second chapter, the entire process carried out to achieve the functional implementation of the prototype is presented, the installation process of the Atmel Studio 7.0 and Packet Sniffer software is detailed, the flowchart from which the channel access algorithm is coded is presented, as well as the timing diagram and finally the code obtained for each node and that will be used in the implementation part. The third chapter presents all the results obtained from the implementation of the algorithm in the network prototype, the performance obtained, and a contrast is made between the channel access method using the designed algorithm and the CSMA/CA method, as well as the pertinent conclusions and recommendations.