التفاصيل البيبلوغرافية
| العنوان: |
The Uplink Visible Light Communication Beacon System for Universal Traffic Management |
| المؤلفون: |
Takaya Yamazato, Naoaki Kawagita, Hiraku Okada, Toshiaki Fujii, Tomohiro Yendo, Shintaro Arai, Koji Kamakura |
| المصدر: |
IEEE Access, Vol 5, Pp 22282-22290 (2017) |
| بيانات النشر: |
IEEE, 2017. |
| سنة النشر: |
2017 |
| المجموعة: |
LCC:Electrical engineering. Electronics. Nuclear engineering |
| مصطلحات موضوعية: |
Visible light communications (VLC), LED beacon system, uplink, universal traffic management systems (UTMS), Electrical engineering. Electronics. Nuclear engineering, TK1-9971 |
| الوصف: |
This paper presents a feasibility study of the uplink visible light communication (VLC) beacon system for the universal traffic management system (UTMS). The UTMS is a traffic management system beneath the National Police Agency of Japan. Currently, 55 000 UTMS infrared beacon systems have been installed, and they provide expressway and ordinary road information to cars. However, the data rate is 1 Mbps, and a faster data rate is necessary to support automotive and smart mobility devices. In this paper, we propose an uplink V2I system for the UTMS. The system is designed to match the current beacon system as closely as possible, so that the system can easily be replaced and still provide sufficient bandwidth for future automotive and smart mobility devices. We adopt a photo diode (PD) as the VLC receiver and a commercially available off-the-shelf LED headlight as a transmitter. Unfortunately, the bandwidth of such an LED is usually small, so we consider applying a bit-loading algorithm to direct-current-biased optical orthogonal frequency division multiplexing. To reduce strong background noise, such as from the sun, we narrow down the field-of-view by applying a lens to the PD, which forms a tiny communication area, smaller than the current infrared beacon system. We then consider multiple PDs with the lens to create a similar communication area as the infrared beacon system. As a result, we achieve 3.1-Mbps throughput. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2169-3536 |
| Relation: |
https://ieeexplore.ieee.org/document/8057749/; https://doaj.org/toc/2169-3536 |
| DOI: |
10.1109/ACCESS.2017.2759179 |
| URL الوصول: |
https://doaj.org/article/9c413fdfc2f241b6ac93871d36b3197d |
| رقم الانضمام: |
edsdoj.9c413fdfc2f241b6ac93871d36b3197d |
| قاعدة البيانات: |
Directory of Open Access Journals |
Full Text Finder