TY  - CHAP
U1  - Konferenzveröffentlichung
A1  - Naeem, Aqsa
A1  - Hassan, Naveed Ul
A1  - Pasha, Muhammad Adeel
A1  - Yuen, Chau
A1  - Sikora, Axel
T1  - Performance Analysis of TDOA-based Indoor Positioning Systems using Visible LED Lights
T2  - Proceedings of the 4th IEEE International Symposium on Wireless Systems within the International Conferences on Intelligent Data Acquisition and Advanced Computing Systems (IDAACS-SWS)
N2  - Recently, the demand for scalable, efficient and accurate Indoor Positioning Systems (IPS) has seen a rising trend due to their utility in providing Location Based Services (LBS). Visible Light Communication (VLC) based IPS designs, VLC-IPS, leverage Light Emitting Diodes (LEDs) in indoor environments for localization. Among VLC-based designs, Time Difference of Arrival (TDOA) based techniques are shown to provide very low errors in the relative position of receivers. Our considered system consists of five LEDs that act as transmitters and a single receiver (photodiode or image sensor in smart phone) whose position coordinates in an indoor environment are to be determined. As a performance criterion, Cramer Rao Lower Bound (CRLB) is derived for range estimations and the impact of various factors, such as, LED transmission frequency, position of reference LED light, and the number of LED lights, on localization accuracy has been studied. Simulation results show that depending on the optimal values of these factors, location estimation on the order of few centimeters can be realistically achieved.
Y1  - 2018
SN  - 978-1-5386-7587-8 (digital)
SB  - 978-1-5386-7587-8 (digital)
SN  - 978-1-5386-9339-1 (Print)
SB  - 978-1-5386-9339-1 (Print)
SN  - 978-1-5386-7586-1 (USB)
SB  - 978-1-5386-7586-1 (USB)
SN  - 978-1-5386-7588-5 (Print on Demand)
SB  - 978-1-5386-7588-5 (Print on Demand)
U6  - https://doi.org/10.1109/IDAACS-SWS.2018.8525567
DO  - https://doi.org/10.1109/IDAACS-SWS.2018.8525567
SP  - 103
EP  - 107
PB  - IEEE
ER  -