@article{3059287, title = "Performance evaluation of modulation and multiple access schemes in ultraviolet optical wireless connections for two atmosphere thickness cases", author = "Raptis, N. and Pikasis, E. and Syvridis, D.", journal = "Journal of the Optical Society of America A: Optics and Image Science, and Vision", year = "2016", volume = "33", number = "8", pages = "1628-1640", publisher = "OSA - The Optical Society", doi = "10.1364/JOSAA.33.001628", keywords = "Bit error rate; Code division multiple access; Light emitting diodes; Modulation; Optical systems; Wireless telecommunication systems, Bit error rate (BER) performance; Central nodes; Multiple access scheme; Non-line-of-sight; Numerical approaches; Optical wireless; Optical wireless communications; Scattering centers, Optical communication", abstract = "The exploitation of optical wireless communication channels in a non-line-of-sight regime is studied for pointto-point and networking configurations considering the use of light-emitting diodes. Two environments with different scattering center densities are considered, assuming operation at 265 nm. The bit error rate performance of both pulsed and multicarrier modulation schemes is examined, using numerical approaches. In the networking scenario, a central node only receives data, one node transmits useful data, and the rest of them act as interferers. The performance of the desirable node's transmissions is evaluated. The access to the medium is controlled by a code division multiple access scheme. © 2016 Optical Society of America." }