Localization via visible light systems

Date
2018
Advisor
Instructor
Source Title
Proceedings of the IEEE
Print ISSN
0018-9219
Electronic ISSN
Publisher
Institute of Electrical and Electronics Engineers
Volume
106
Issue
6
Pages
1063 - 1088
Language
English
Type
Review
Journal Title
Journal ISSN
Volume Title
Abstract

Visible light communication (VLC) is an emerging paradigm that enables multiple functionalities to be accomplished concurrently, including illumination, high-speed data communications, and localization. Based on the VLC technology, visible light positioning (VLP) systems aim to estimate locations of VLC receivers by utilizing light-emitting diode (LED) transmitters at known locations. VLP presents a viable alternative to radio frequency (RF)-based positioning systems by providing inexpensive and accurate localization services. In this paper, we consider the problem of localization in visible light systems and provide an extensive survey of various location estimation techniques, accompanied by discussions of their relative merits and demerits within the context of accuracy and computational complexity. In addition, we investigate a cooperative VLP system architecture in which VLC receiver units are able to communicate with each other for the purpose of cooperation, and present a low-complexity, iterative localization algorithm to demonstrate the benefits of cooperation in VLP systems. Finally, we investigate optimal strategies for power allocation among LED transmitters to maximize the localization accuracy subject to power and illumination constraints.

Course
Other identifiers
Book Title
Keywords
Cooperation, Direct positioning, Localization, Parameter estimation, Power allocation, Two-step positioning, Visible light communication (VLC), Visible light positioning (VLP)
Citation
Published Version (Please cite this version)