Evaluation Method of Mesh Protocol over ESP32 and ESP8266

Abstract

Internet of Things (IoT) is one of the newest matters in both industry and academia of the communication engineering world. On the other hand, wireless mesh networks, a network topology that has been debate for decades that haven’t been put into use in great scale, can make a transformation when it arises to the network in the IoT world nowadays. A Mesh IoT network is a local network architecture in which linked devices cooperate and route data using a specified protocol. Typically, IoT devices exchange sensor data by connecting to an IoT gateway. However, there are certain limitations if it involves to large number of sensors and the data that should be received is difficult to analyze. The aim of the work here is to implement a self-configuring mesh network in IoT sensor devices for better independent data collection quality. The research conducted in this paper is to build a mesh network using NodeMCU ESP 8266 and NodeMCU ESP 32 with two types of sensor, DHT 11 and DHT 22. Hence, the work here has evaluated on the delay performance metric in Line-of-Sight (LoS) and Non-Line-of-Sight (nLos) situation based on different network connectivity. The results give shorter delay time in LoS condition for all connected nodes as well as when any node fail to function in the mesh network compared to nLoS condition. The paper demonstrates that the IoT sensor devices composing the mesh network is a must to leverage the link communication performance for data collection in order to be used in IoT-based application such as fertigation system. It will certainly make a difference in the industry once being deployed on large scale in the IoT world and make the IoT more accessible to a wider audience.

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“…NodeMCU adalah sebuah platform IoT yang bersifat open source [9]. Terdiri dari perangkat keras berupa sistem on chip ESP32 buatan Esperessif System [10]. NodeMCU bisa dianalogikan sebagai board arduino yang terkoneksi dengan ESP32 [11], [12].…”

“…Metode penelitian yang digunakan adalah dengan pendekatan ADDIE seperti pada Gambar 1 [33]. Metode ini merupakan metode yang banyak digunakan untuk menghasilkan suatu produk atau alat industri [17], [10]. Produk yang dibuat dalam hal ini adalah berupa alat sehingga penelitian ini akan cocok dengan pendekatan ADDIE.…”

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“…The continuous developments of computer networks take variant approaches of work. Some of works is focusing on improving existent technologies, other works focuses on developing novel technologies in computer network to allow for providing new types of services 1,2 . Virtually all elements of business and governmental work utilize the Internet or computer networks, and the digital transformation of these sectors has highlighted the importance of sharing sensitive and dangerous information safely.…”