Abstract:
Considerable amount of research is being
conducted to realize the emerging smart places technologies. The
underlying infrastructure required to build a smart place
technology consists of many sensors distributed in the target
area. Sensors need to communicate with each other in an efficient
way; hence, it requires knowing the distance with all of its
neighbors. Several techniques are used to estimate distances
between nodes (sensors) using Received Signal Strength Indicator
(RSSI). However, many factors may affect the calculation of the
exact distance using RSSI such as interference and noise levels.
In this paper, we examined the RSSI behavior by conducting real
experiments aimed at developing RSSI-Distance error model. We
have conducted real experiments to measure the RSSI values
between different sensors in various scenarios (both indoor and
outdoor). The main goal for these experiments is to better
understand the nature of RSSI fluctuations and its effect on
distance calculations.