Comparative Analysis of Indoor Visible Light Communication Systems Enhanced With Positioning Algorithm
by Mustafa Ege Yardımcı, Kerem Günel, Fatih Kalcı
Abstract – Constantly varying background noise and any blockage in Visible Light Communication (VLC) increase bit error rate (BER) which was addressed in different proposals. Estimation of receiver coordinates is a greatly promising approach. The access points (AP) can allocate transmission elements by estimating receiver coordinates. It was hypothesized that ADR-ADT enhanced VLC transmission can perform better receiver localisation, which translates to smaller BER in the communication link. Results suggested the average error for ADR-ADT VLC positioning (7.61cm) was slightly higher than RSS-based VLC (4.98cm). However, the communication link was more stable in the ADR-ADT VLC network due to its spatial characteristics of the localization algorithm and had around 70% lower BER at 100mbps. While the results of localization efficiency were not aggregable with the hypotheses, ADR-ADT decreased the number of APs for facilitating an indoor positioning system and the BER ratio. As such, ADR-ADT provides a more stable indoor network than RSS-enhanced VLC models.