Modelling the Effect of Human Body around User on Signal Strength and Accuracy of Indoor Positioning

Authors

  • Firdaus Universiti Teknologi Malaysia (UTM), Kuala Lumpur
  • Noor Azurati Ahmad Universiti Teknologi Malaysia (UTM), Kuala Lumpur
  • Shamsul Sahibuddin Universiti Teknologi Malaysia (UTM), Kuala Lumpur
  • Rudzidatul Akmam Dziyauddin Universiti Teknologi Malaysia (UTM), Kuala Lumpur

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 RSSI as function of position, distance, and number of people. RSSI decreased from 5 dBm to 1 dBm when people in LOS position, and start from 0.5 dBm to 0.3 dBm when people in NLOS position. The system accuracy decreases due to the presence of people. When the system in NLOS case (ΔRSSI = 0.5 dBm), the presence of people causes a decrease in accuracy from 33% to 57%. Then the accuracy decrease from 273% to 334% in LOS case (ΔRSSI = 5 dBm).

Downloads

Download data is not yet available.

Downloads

Published

09-08-2020

How to Cite

Firdaus, Ahmad, N. A. ., Sahibuddin, S. ., & Dziyauddin, R. A. (2020). Modelling the Effect of Human Body around User on Signal Strength and Accuracy of Indoor Positioning. International Journal of Integrated Engineering, 12(7), 72–80. Retrieved from https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/6602

Most read articles by the same author(s)