Data de publicação: 03/05/2023
The purpose of this paper is to evaluate WiFi (IEEE 802.11 b/g/n)
performance of ESP32 modules in outdoor scenarios using an offthe-
shelf access point (AP). This was done by measuring its received
signal strength indicator (RSSI) and application data transfer rates
at different locations of a relatively open area, prone to possible
sources of interference, in order to simulate a real-life usage situation.
The results show that this setup is suitable for medium data
rate applications at distances up to 300m from the wireless access
point. Based on the acquired RSSI values, the achievable data rate
on the PHY layer was also estimated for each point based on the
hardware documentation. Throughout the text, challenges faced
during the implementation of the system are shared, as well as
the solutions found, which will be useful for those who wish to
replicate the experiment.