Study on Transmission of Visible Light in Selected Water Bodies of Southwest Nigeria for Underwater Wireless Optical Communication
Keywords:Absorbance, Salinity, Electrical Conductivity, Underwater Wireless Optical Communication, Quality Factor
A study on the transmission of visible light (400 nm-800 nm) in some selected natural water bodies of Southwest Nigeria was carried out via spectroscopy, and their salinity, total dissolved solids, and electrical conductivity were obtained. Samples of ten selected water bodies comprising rivers, lagoons, and the Atlantic Ocean were taken namely: River Ala, River Ogbese, River Kinira, River Apake, River Odo-Oru, River Odo-Eran, Epe Lagoon, Lagos Lagoon (Lekki Phase 1), Lagos Lagoon (Victoria Island) and the Atlantic Ocean. The absorption of light in them was measured using a spectrophotometer. From the results of the measurements, the rivers showed less conductivity, total dissolved solids, and salinity compared to the lagoons, and the Atlantic Ocean. The Atlantic Ocean gave the highest value. Also, there is varying optical attenuation with different wavelengths. At shorter wavelengths (blue light), there is higher absorbance with an increase in salinity compared to longer wavelengths (red light). At the infra-red end (750 nm – 800 nm), all the samples showed increased absorbance compared to the absorbance at red wavelength (700 nm). From the measurements, an optical beam of a wavelength of 650 nm was found most suitable for optical communication across these water bodies. The transmission was simulated at this wavelength for the water bodies using OptiSystem software linked with MATLAB at different data rates, and their performance was investigated in terms of received quality factor and bit error rate. The quality factor reduces with an increase in salinity, while the bit error rate increases with an increase in salinity.
Ayeni, A.O., Balogun, I.I. and Soneye, A.S.O., 2011. Seasonal assessment of physico-chemical concentration of polluted urban river: a case of Ala River in Southwestern-Nigeria. Research Journal of Environmental Sciences, 5(1), p.22. DOI: https://doi.org/10.3923/rjes.2011.22.35
Shen, C., Guo, Y., Oubei, H.M., Ng, T.K., Liu, G., Park, K.H., Ho, K.T., Alouini, M.S. and Ooi, B.S., 2016. 20-meter underwater wireless optical communication link with 1.5 Gbps data rate. Optics express, 24(22), pp.25502-25509. DOI: https://doi.org/10.1364/OE.24.025502
Gabriel, C., Khalighi, M.A., Bourennane, S., Léon, P. and Rigaud, V., 2012, October. Investigation of suitable modulation techniques for underwater wireless optical communication. In 2012 International Workshop on Optical Wireless Communications (IWOW) (pp. 1-3). IEEE. DOI: https://doi.org/10.1109/IWOW.2012.6349691
Han, X., Peng, Y., Zhang, Y., Ma, Z. and Wang, J., 2015. Research on the attenuation characteristics of some inorganic salts in seawater. Journal of the European Optical Society-Rapid publications, 10, pp. 15045-1-5. DOI: https://doi.org/10.2971/jeos.2015.15045
Pegau, W.S., Gray, D. and Zaneveld, J.R.V., 1997. Absorption and attenuation of visible and near-infrared light in water: dependence on temperature and salinity. Applied optics, 36(24), pp.6035-6046. DOI: https://doi.org/10.1364/AO.36.006035
Sathyaram, V., Prince, S. and Vedachalam, N., 2018. A study on underwater optical wireless communication link capability in the Bay of Bengal. Ocean systems engineering, 8(1), pp.33-39.
Mogunde, C. and Mosiori, C.O., 2018. Transmittance and Extinction Coefficient of Sea and Well-Water in Mombasa County, Kenya. Traektoriâ Nauki= Path of Science, 4(10), pp.3001-3005. DOI: https://doi.org/10.22178/pos.39-4
Shaboy, D., Rockban, D. and Handelman, A., 2018. Tapping underwater wireless optical communication in pure water and natural Dead-Sea ultra-high-salinity water by diffraction grating. Optics Express, 26(23), pp.29700-29711. DOI: https://doi.org/10.1364/OE.26.029700
Ojediran O.A., Ponnle A.A. and Oyetunji S.A., 2021, October. Attenuation effect of saline water on performance of underwater wireless optical communication within the visible light range, In 2021 SEET Annual Conference of Federal University of Technology, Akure, Nigeria, (pp. 472 – 489).
Ojediran, O.A., Ponnle, A.A. and Oyetunji, S.A., 2022. Experimental study on transmission of visible light in table salt water and effect on underwater wireless optical communication. European Journal of Electrical Engineering and Computer Science, 6(2), pp.25-32. DOI: https://doi.org/10.24018/ejece.2022.6.2.425
Alatawi, A.S., 2022. A Testbed for Investigating the Effect of Salinity and Turbidity in the Red Sea on White-LED-Based Underwater Wireless Communication. Applied Sciences, 12(18), p.9266. DOI: https://doi.org/10.3390/app12189266
Adnan, S.A., Hassan, H.A., Alchalaby, A. and Kadhim, A.C., 2021. Experimental study of underwater wireless optical communication from clean water to turbid harbor under various conditions. International Journal of Design & Nature and Ecodynamics, 16(2), pp.219-226. DOI: https://doi.org/10.18280/ijdne.160212
Akinbile, C.O. and Omoniyi, O., 2018. Quality assessment and classification of Ogbese river using water quality index (WQI) tool. Sustainable Water Resources Management, 4, pp.1023-1030. DOI: https://doi.org/10.1007/s40899-018-0226-8
Orjiekwe, C.L., Dumo, D.T. and Chinedu, N.B., 2013. Assessment of water quality of Ogbese River in Ovia North-East Local Government area of Edo State, Nigeria. International Journal of Biological and Chemical Sciences, 7(6), pp.2581-2590. DOI: https://doi.org/10.4314/ijbcs.v7i6.32
Akagha, S.C., Nwankwo, D.I. and Yin, K., 2020. Dynamics of nutrient and phytoplankton in Epe Lagoon, Nigeria: possible causes and consequences of reoccurring cyanobacterial blooms. Applied Water Science, 10(5), pp.1-16. DOI: https://doi.org/10.1007/s13201-020-01190-7
Gabriel, C., Khalighi, M.A., Bourennane, S., Léon, P. and Rigaud, V., 2013. Monte-Carlo-based channel characterization for underwater optical communication systems. Journal of Optical Communications and Networking, 5(1), pp.1-12. DOI: https://doi.org/10.1364/JOCN.5.000001
Sui, M., Yu, X. and Zhang, F., 2009, February. The evaluation of modulation techniques for underwater wireless optical communications. In 2009 International Conference on Communication Software and Networks (pp. 138-142). IEEE. DOI: https://doi.org/10.1109/ICCSN.2009.97
Elamassie, M., Miramirkhani, F. and Uysal, M., 2018, May. Channel modeling and performance characterization of underwater visible light communications. In 2018 IEEE International Conference on Communications Workshops (ICC Workshops) (pp. 1-5). IEEE. DOI: https://doi.org/10.1109/ICCW.2018.8403731
Jamali, M.V., Khorramshahi, P., Tashakori, A., Chizari, A., Shahsavari, S., AbdollahRamezani, S., Fazelian, M., Bahrani, S. and Salehi, J.A., 2016, May. Statistical distribution of intensity fluctuations for underwater wireless optical channels in the presence of air bubbles. In 2016 Iran Workshop on Communication and Information Theory (IWCIT) (pp. 1-6). IEEE. DOI: https://doi.org/10.1109/IWCIT.2016.7491626
Jasman, F. and Green, R.J., 2013, October. Monte Carlo simulation for underwater optical wireless communications. In 2013 2nd International Workshop on Optical Wireless Communications (IWOW) (pp. 113-117). IEEE. DOI: https://doi.org/10.1109/IWOW.2013.6777789
Kumar S., Prince S., Aravind J.V., and Kumar S.G., 2019. Analysis on the effect of salinity in underwater wireless optical communication. Marine Geo-resources and Geo-technology, 38(3), pp.1-11. DOI: https://doi.org/10.1080/1064119X.2019.1569739
Atascientific (2020) Understanding spectrometry and Spectroscopy, ATA Scientific. Available at: https://www.atascientific.com.au/spectrometry/ (Accessed: 29 August 2023).
Al-Azzawi, Z.M., Abdulzahra, N.Z. and Hammood, I.H., 2014. Optical Properties of Tap Water Purity using He-Ne Laser with Different Power Density. Al-Nahrain Journal of Science, 17(3), pp.99-107. DOI: https://doi.org/10.22401/JNUS.17.3.13
Hu, C., Muller-Karger, F.E. and Zepp, R.G., 2002. Absorbance, absorption coefficient, and apparent quantum yield: A comment on common ambiguity in the use of these optical concepts. Limnology and Oceanography, 47(4), pp.1261-1267. DOI: https://doi.org/10.4319/lo.2002.47.4.1261
Stotts, L.B., 2017. Eye diagram and its interpretation. John Wiley and Sons Inc., New Jersey, USA.
Antony, T. and Gumaste, A., 2002. DWDM network designs and engineering solutions. Cisco Press, USA.
Anifowose, A.J. and Oyebode, A.W., 2019. Studies on heavy metals contents of Osun River at the pre-urban settlement and across Osogbo City, Nigeria. Journal of Taibah University for Science, 13(1), pp.318-323. DOI: https://doi.org/10.1080/16583655.2019.1567899
Oketola, A.A., Osibanjo, O., Ejelonu, B.C., Oladimeji, Y.B. and Damazio, O.A., 2006. Water quality assessment of River Ogun around the cattle market of Isheri, Nigeria. Journal of Applied Sciences, 6(3), pp.511-517. DOI: https://doi.org/10.3923/jas.2006.511.517
Osagie, E. and Fidelia, A., 2014. Water Quality Assessment of Osse River, Edo State, Nigeria, Using Some Physico-Chemical Parameters. Nigerian Journal of Life Sciences (ISSN: 2276-7029), 4(1), pp.153-174. DOI: https://doi.org/10.52417/njls.v4i1.168
Britannica, T., 2021. Editors of Encyclopedia. Atlantic Ocean. Encyclopedia Britannica.
Ponnle, A.A., Ojediran, O.A. and Oyetunji, S.A., 2022. An alternative experimental method for determination of light beam attenuation coefficient in underwater wireless optical communication. European Journal of Electrical Engineering and Computer Science, 6(3), pp.19-26. DOI: https://doi.org/10.24018/ejece.2022.6.3.439
Okoli, C.S., Ojo, S.I.A. and Oguntuase, A.M., 2009. Modelling of Sediment Transport Capacities of Ogbese and Owena Rivers in SW Nigeria. Advanced Materials Research, 62, pp.786-796. DOI: https://doi.org/10.4028/www.scientific.net/AMR.62-64.786
Oladeji, O. and Adelowo, F., 2016. The impacts of human activities of Ogbomosho river–causes, effects and role of an individual (Ogbomosho residents) in prevention of water pollution. Environmental Science, 12(8), pp.1-8.
Olukolajo, S.O. and Hillary, E.C., 2012. Species diversity and growth pattern of the fish fauna of Epe Lagoon, Nigeria. Journal of Fisheries and Aquatic Science, 7(6), pp.392-401. DOI: https://doi.org/10.3923/jfas.2012.392.401
Travelwaka (2021) Epe Fish Market – the biggest fish market in Lagos, TravelWaka. Available at: https://www.travelwaka.com/epe-fish-market-the-biggest-fish-market-in-lagos/ (Accessed: 29 August 2023).
Okusipe, O.M., 2003. Lagos Lagoon coastal profile: Information database for planning theory. Department of Urban and Regional Planning, University of Lagos, Lagos, Nigeria.
Aina Adeogun, Professor of Aquatic Toxicology (2020) How we learnt more about dangerous pollutants in lagos lagoon, The Conversation. Available at: https://theconversation.com/how-we-learnt-more-about-dangerous-pollutants-in-lagos-lagoon-139987 (Accessed: 29 August 2020).
Abuta, C.M.-A. (2018) The Atlantic Ocean as a nigerian trade route, Make Heritage Fun! Available at: http://www.makeheritagefun.com/atlantic-ocean-nigerian/?amp=1 (Accessed: 29 August 2023).
Tata, H., Nzelibe, I.O., and Faneye, A.J., 2019. Bathymetric mapping for safe navigation: A case study of part of Lagos Lagoon. Afr. Sch. J. Environ. Des. Constr. Mgt.(AJECM), 14, pp.1-13.
(No date a) Elegushi beach, postal code, GPS coordinates, Lekki, Lagos 550104 Nigeria - tripexpress.com. Available at: https://www.tripexpress.org/attraction-elegushi-beach-10081994/ (Accessed: 29 August 2023 )
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