Firdaus, Firdaus and Ahmad, Noor Azurati and Sahibuddin, Shamsul and Dziyauddin, Rudzidatul Akmam (2020) Modelling the effect of human body around user on signal strength and accuracy of indoor positioning. International Journal of Integrated Engineering, 12 (7). pp. 72-80. ISSN 2229-838X
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Official URL: http://dx.doi.org/10.30880/ijie.2020.12.07.008
Abstract
WLAN indoor positioning system (IPS) has high accurate of position estimation and minimal cost. However, environmental conditions such as the people presence effect (PPE) greatly influence WLAN signal and it will decrease the accuracy. This research modelled the effect of people around user on signal strength and the accuracy. We have modelled the human body around user effects by proposed a general equation of decrease in signal strength as function of position, distance, and number of people. Signal strength decreased from 5 dBm to 1 dBm when people in line of sight (LOS) position, and start from 0.5 dBm to 0.3 dBm when people in non-line of sight (NLOS) position. The system accuracy decreases due to the presence of people. When the system is in NLOS case, the presence of people causes a decrease in accuracy from 33% to 57%. Then the accuracy decrease from 273% to 334% in LOS case.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Indoor Positioning System, Internet of Thing, Model of Human Body, People Presence Effect, WLAN Fingerprinting |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Razak School of Engineering and Advanced Technology |
| ID Code: | 97065 |
| Deposited By: | Widya Wahid |
| Deposited On: | 15 Sep 2022 06:29 |
| Last Modified: | 15 Sep 2022 06:29 |
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