Optical wireless communications omnidirectional receivers for vehicular communications

被引：20
|
作者：
Barroso, Alberto Rui Frutuoso [1 ,3 ]
Johnson, Julia [2 ,3 ]
机构：
[1] Barthi Sch Engn, Sudbury, ON, Canada
[2] Dept Math & Comp Sci, Sudbury, ON, Canada
[3] Laurentian Univ, 935 Ramsey Lake Rd, Sudbury, ON, Canada
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2017年 / 79卷
关键词：
OWC; VLC; FSO; WLS; V2V; V2I; PERFORMANCE ANALYSIS; DETECTOR;
D O I：
10.1016/j.aeue.2017.05.042
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Wide aperture omnidirectional free-space optical (FSO) receivers using wavelength shifting (WLS) fibers that enable the use of small active area high-speed photodetectors in optical wireless communications, are presented. In particular, the influence of WLS fiber decay time in the bit rate is evaluated when receiving intensity modulated light generated with commercial off-the-shelf light-emitting diodes. The option of increasing the photon collecting area of a 7 mm(2) active area avalanche photodiode using WLS fiber, gave a 300% improvement in the bit rate, when compared with the option of using a bare 31 mm(2) active area avalanche photodiode. It was also experimentally verified, that a WLS spiral receiver mounted over a reflective base gave more gain than simulated Lambert's cosine law, proving that reflective optics can be used to increase the WLS-FSO receiver aperture. (C) 2017 Elsevier GmbH. All rights reserved.
引用
收藏
页码：102 / 109
页数：8
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