Li-Fi based Indoor Positioning System

Sattigiri, Neel Jitendra; Patel, Garima; Mondal, Sougata; Pal, Richi; Prince, Shanthi

doi:10.1109/iccsp.2019.8697974

Cited by 7 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experiment Coverage Area for Simulations is (6m×5m×10m) and in the lab experiment is (1mx1mx2m). [88] Li-Fi ---------------√ -----LOS This approach is implemented in real experiments on experiment coverage area over a path length of 32 cm at a total duration of approximately 52 s with a handoff at an average speed of 0.6 cm/s to the target receiver. This system is applicable for approximate positioning applications.…”

Section: Complexit Ymentioning

confidence: 99%

Indoor Positioning Based Ranging: A Review and Literature Survey of UWB and Li-Fi Technologies

Majeed,

Rashudah,

Muhammad

et al. 2024

Elektrika

View full text Add to dashboard Cite

Why IPS (Indoor Positioning Systems)? This issue is one of the most challenging things to solve in wireless localization due to the lack of a Global Positioning System (GPS) and the existence of distinctive radio propagation characteristics. Although there are different localization options available, the accuracy of localization cannot satisfy customers' requirements. Positioning algorithms could be grouped into two groups, including range-based and range-free techniques. Before actually putting a localization technique into practice, the accuracy of those techniques is of the utmost importance. Range-based methods can often attain great accuracy with the help of specialized hardware, and this accuracy can be dependent on either the distances between nodes or the angles between them. In this paper, a comparison of different strategies utilized for positioning is presented, as well as an analysis of the pros and cons associated with supporting technologies for each strategy. A literature survey of the recent IPS technologies range-based with focuses on Ultra-Wide Band (UWB) and Light Fidelity (Li-Fi) is presented with significant recommendations. This literature considered the accuracy, complexity, scalability, cost, latency, deployment, and usability, as well as strengths, shortcomings, approaches, and issues determined by each work. This paper highlights the most recent research gaps and reviews the most promising findings, with recommendations to the reader and researcher, in UWB and Li-Fi indoor positioning systems over the last five years based on range-based techniques. In addition, this paper serves as a guide that discusses all of the measures that may be utilized in the process of evaluating localization technologies, and it could be considered a roadmap for existing and new researchers to identify and characterize suitable technologies for creating innovative systems and apps via stand-alone range-based positioning.

show abstract

Section: Complexit Ymentioning

confidence: 99%

Indoor Positioning Based Ranging: A Review and Literature Survey of UWB and Li-Fi Technologies

Majeed,

Rashudah,

Muhammad

et al. 2024

Elektrika

View full text Add to dashboard Cite

show abstract

“…Each LED location coordinate is anticipated to be downloaded by a mobile user ahead of time and stored locally on their device. OCC was assumed to be used for signals separation at the receiver [10]. The algorithm of the whole model of the proposed system is given in algorithm1.…”

Section: System Modelmentioning

confidence: 99%

“…𝑒 𝑖 = 𝑑 𝑖 − 𝑟 𝑖 (10) A straight gradient approach, for example, might be used to iteratively determine the estimated position as shown in eq. 11.…”

Section: Target Positioning Using Weight Lsmentioning

confidence: 99%

Accuracy enhancement in indoor positioning system based on visible light communication

Razzaq

Abdullah

2022

PEN

View full text Add to dashboard Cite

The travelled signals that used to estimate the distances between LEDs and the target undergo from non-line-ofsight (NLOS) link in indoor positioning system (IPS) utilizing visible light communication (VLC) technology. This could present a significant error in identifying their positions. In this paper, we design an IPS based on a new hybrid technique using VLC technology for accuracy enhancing. To begin, the target's position is determined using a weighted least square positioning method. Next, a maximum likelihood positioning approach is used to relocate the target's position, starting with the estimated position as an initial point. Simulations present that the created algorithm performs better than weight least squares and conventional maximum likelihood methods.

show abstract

“…Handover among Li-Fi APs are referred as horizontal handover. Handover between Li-Fi and Wi-Fi are known as vertical handover [9], [10]. Average time taken by central unit varies between 30 to 3000 m seconds [11].…”

Section: Fig1 Electromagnetic Spectrum [15]mentioning

confidence: 99%

Light Fidelity (Li - Fi) Access Point Selection for Heterogeneous Network with Non Overlapping Li - Fi Access Points

Veeramakali*,

Prabhu,

Jayashri

2020

IJRTE

View full text Add to dashboard Cite

 Abstract: Data transmission is a part of our life in today's scenario. Data communication can be carried out by wired technology and wireless technology. Radio frequency is a part of the electromagnetic spectrum, which is used for wireless communication. Many technologies are used for wireless communication such as Wi-Fi, Blue Tooth, Ad-hoc, and etc. These are all transmitting data through radio spectrum for short distance. New technology called as Li-Fi (Light-Fidelity) is going to be a major wireless communication technology in future. In the proposed system a heterogeneous network has been consider as a system model. Li-Fi technology is having the capacity of low coverage area. So, non movable wireless devices are getting better usage of Li-Fi technology in an indoor environment. For mobile devices need more number of Li-Fi access points. When the user moves from one access point to another access point covering range, the service should be continued without break. System handover is a major issue in the Li-Fi technology. If the user goes out of the range of light emission area, then the user can get the service through Wi-Fi access point. Proposed system focusing on the handover process based on the measured handover efficiency value. Data transmission can be disturbed due to some power failure or LED fault. In this situation immediately the entire load should be handled by the Wi-Fi access point. In such a situationdata rate is coming down than the threshold value. So handover process will be handled by the common controller. Data rate is observed when the number of user increased and for variation in channel gain and the simulation results are analysed.

show abstract

Li-Fi based Indoor Positioning System

Cited by 7 publications

References 9 publications

Indoor Positioning Based Ranging: A Review and Literature Survey of UWB and Li-Fi Technologies

Indoor Positioning Based Ranging: A Review and Literature Survey of UWB and Li-Fi Technologies

Accuracy enhancement in indoor positioning system based on visible light communication

Light Fidelity (Li - Fi) Access Point Selection for Heterogeneous Network with Non Overlapping Li - Fi Access Points

Contact Info

Product

Resources

About