Abstract
Visible light communication (VLC) using light-emitting-diodes (LEDs) has been a
popular research area recently. VLC can provide a practical solution for indoor
positioning. In this paper, the impact of multipath reflections on a two-dimensional
indoor VLC positioning is investigated, considering a complex indoor environment with
walls, floor, and ceiling. For the proposed positioning system, an LED bulb is the
transmitter and a photo-diode is the receiver to detect received signal strength
information. Combined deterministic and modified Monte Carlo method is applied to
compute the impulse response of the optical channel. Since power attenuation is applied
to calculate the distance between the transmitter and receiver, the received power from
each reflection order is analyzed. The positioning errors are further estimated for all
the locations over the room and compared with the previous works where no reflections
considered. Finally, calibration approaches are proposed to decrease the effect of
multipath reflections.
© 2016 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription