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Indoor Non-directed Optical Wireless Communications Optimization of the Lambertian Order | ||
| Journal of Electrical and Computer Engineering Innovations (JECEI) | ||
| مقاله 1، دوره 1، شماره 1، فروردین 2013، صفحه 1-10 اصل مقاله (594 K) | ||
| نوع مقاله: Review paper | ||
| شناسه دیجیتال (DOI): 10.22061/jecei.2013.1660 | ||
| نویسندگان | ||
| F. Ghassemlooy* 1؛ D. Wu1؛ M.A. Khalighi2؛ X. Tang3 | ||
| 1Optical Communications Research Group, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, UK | ||
| 2Ecole Centrale Marseille, Institute Fresnel, Marseille, France | ||
| 3Department of Electronic Engineering, Tsinghua University, Beijing, China | ||
| تاریخ دریافت: 10 اردیبهشت 1392، تاریخ بازنگری: 24 خرداد 1392، تاریخ پذیرش: 24 خرداد 1392 | ||
| چکیده | ||
| For an indoor non-directed line of sight optical wireless communication (NLOS-OWC) system we investigate the optimized Lambertian order (OLO) of light-emitting diodes (LEDs). We firstly derive an expression for the OLO from a conventional Lambertian LED model. Then, we analyze the indoor multi-cell NLOS-OWC channel characteristics including the optical power distribution and the multipath time dispersion for two cases of one-cell and four-cell configurations. Furthermore, we estimate the transmission bandwidth by simulating the channel frequency response. Numerical results presented show that, by using OLO a significant improvement of the transmission bandwidth can be achieved for an indoor NLOS-OWC system, in particular, for multi-cell configurations. | ||
| مراجع | ||
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