\end{itemize}
\end{chapterabstract}
-There are at least 13.4 billion devices connected to the internet at the time of writing \citep{transformation_insights_current_2023}.
+There are at least 13.4 billion devices connected to the internet at the time of writing \citep{transforma_insights_current_2023}.
Each of these sense, act, or otherwise, interacts with people, computers, and the environment.
Despite their immense diversity in characteristics, they are all computers and they they all require software to operate.
In home automation this layer consists of all devices hosting sensors and actuators such as smart light bulbs, actuators to open doors, or temperature and humidity sensors.
All layers are connected using the network layer.
-In some applications this is implemented using conventional networking techniques such as Wi-Fi or Ethernet.
+In some applications this is implemented using conventional networking techniques such as \gls{WIFI} or Ethernet.
However, network technology that is tailored to the needs of the specific interconnection between two layers is increasingly popular.
Examples of this are BLE, LoRa, ZigBee, and LTE-M as a communication protocol for connecting the perception layer to the application layer using \gls{IOT} transport protocols such as \gls{MQTT}.
Protocols such as HTTP, AJAX, and WebSocket connecting the presentation layer to the application layer that are designed for the use in web applications.
repositories / phd-thesis.git / blobdiff