Wu, Dehao, Ghassemlooy, Zabih, Le Minh, Hoa, Rajbhandari, Sujan, Khalighi, Mohammad-Ali and Tang, Xuan (2012) Optimisation of Lambertian order for indoor non-directed optical wireless communication. In: ICCC 2012:First IEEE International Conference on Communication in China, 15-17 August 2012, Beijing, China.
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Abstract
This paper studies the optimised Lambertian order (OLO) of light-emitting diodes (LEDs) for an indoor non-directed line of sight optical wireless communication (NLOS-OWC) systems. We firstly derive an expression of the OLO from a conventional Lambertian LED model, Then, we analyse the indoor multi-cell NLOS-OWC channel characteristics including optical power distribution and 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 show that, by using OLO a significant improvement of the transmission bandwidth can be achieved for in indoor NLOS-OWC systems, in particular, for multi-cell configurations.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | H600 Electronic and Electrical Engineering |
| Department: | Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering |
| Depositing User: | Sarah Howells |
| Date Deposited: | 31 Jul 2012 08:21 |
| Last Modified: | 17 Dec 2023 12:48 |
| URI: | https://nrl.northumbria.ac.uk/id/eprint/8248 |
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