Improvement of Transmission Bandwidth for Indoor Optical Wireless Communication Systems Using an Elliptical Lambertian Beam

被引：11
|
作者：
Wu, Dehao [1 ]
Ghassemlooy, Zabih [1 ]
Rajbhandari, Sujan [1 ]
Hoa Le Minh [1 ]
Boucouvalas, Anthony C. [2 ]
机构：
[1] Northumbria Univ, Opt Commun Res Grp, Sch CEIS, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England
[2] Univ Peloponnese, Dept Telecommun Sci & Technol, Tripolis 22100, Greece
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2013年 / 25卷 / 02期
关键词：
Elliptical Lambertian beam; multipath dispersion and frequency response; optical wireless communication;
D O I：
10.1109/LPT.2012.2227304
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：
In this letter, we propose a tuned elliptical Lambertian beam (ELB) model to achieve a higher transmission bandwidth than the conventional circular Lambertian beam (CLB) model for indoor optical wireless communication systems. ELB is generated by employing a M degrees x N degrees light shaping diffuser, and its power distribution is investigated. We first derive new expressions of the power distribution and the multipath impulse response for ELB. From the precise frequency responses of CLB and ELB sources, we show that the tuned ELB model offers a higher transmission bandwidth than CLB.
引用
收藏
页码：107 / 110
页数：4
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