eprintid: 10059302
rev_number: 16
eprint_status: archive
userid: 608
dir: disk0/10/05/93/02
datestamp: 2018-10-23 13:27:38
lastmod: 2021-12-13 03:11:52
status_changed: 2018-10-23 13:27:38
type: proceedings_section
metadata_visibility: show
creators_name: Luo, P
creators_name: Jiang, T
creators_name: Haigh, PA
creators_name: Ghassemlooya, Z
creators_name: Zvanovec, S
title: Undersampled Pulse Width Modulation for Optical Camera Communications
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
keywords: Optical camera communications, undersampled pulse width modulation, visible light communications
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: An undersampled pulse width modulation (UPWM) scheme is proposed to enable users to establish a non- flickering optical camera communications (OCC) link. With UPWM, only a digital light emitting diode (LED) driver is needed to send signals using a higher order modulation. Similar to other undersample-based modulation schemes for OCC, a dedicated preamble is required to assist the receiver to indicate the phase error introduced during the undersampling process, and to compensate for nonlinear distortion caused by the in-built gamma correction function of the camera. To test the performance of the UPWM- based OCC system, an experimental test-bed is developed. The experimental results show that the proposed system is able to achieve a data rate of 150 bps (spectrum efficiency of 5 bits/symbol) at a bit error rate of 6.76×10^-4, which is well below the forward error correction limit of 3.8×10^-3, over a link span of 1 m using a Huawei Nexus 6P smartphone with a frame rate of 30 fps.
date: 2018-01-01
date_type: published
publisher: IEEE
official_url: http://dx.doi.org/10.1109/ICCW.2018.8403732
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1576058
doi: 10.1109/ICCW.2018.8403732
lyricists_name: Haigh, Paul
lyricists_id: PAHAI28
actors_name: Haigh, Paul
actors_id: PAHAI28
actors_role: owner
full_text_status: public
series: IEEE International Conference on Communications Workshops
publication: 2018 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS WORKSHOPS (ICC WORKSHOPS)
place_of_pub: Kansas City, MO, USA
pages: 6
event_title: IEEE International Conference on Communications (ICC)
event_location: Kansas City, MO
event_dates: 20 May 2018 - 24 May 2018
institution: IEEE International Conference on Communications (ICC)
issn: 2164-7038
book_title: Proceedings of the 2018 IEEE International Conference on Communications Workshops (ICC Workshops)
citation:        Luo, P;    Jiang, T;    Haigh, PA;    Ghassemlooya, Z;    Zvanovec, S;      (2018)    Undersampled Pulse Width Modulation for Optical Camera Communications.                     In:  Proceedings of the 2018 IEEE International Conference on Communications Workshops (ICC Workshops).    IEEE: Kansas City, MO, USA.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10059302/1/1570420278.pdf