Open AccessOptimum power allocation for uniform illuminance in indoor visible light communication
Author(s) -
G. V. S. S. Praneeth Varma
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.008679
Subject(s) - illuminance , visible light communication , optics , metric (unit) , regular polygon , light emitting diode , computer science , mathematics , physics , geometry , engineering , operations management
In this paper an optimal power allocation scheme is proposed to acheive uniform illuminance. Regular arrays and random geometries are considered for an arrangement of the source LEDs. Uniform illuminance is accomplished by considering the variance of the received power on the receiver plane as metric and framing it as a convex optimization problem. Numerical results show that the quality factor of random geometries are superior to fixed geometries. While preserving uniformity, the cost of the system can be reduced when random geometries are used.