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{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,7,8]],"date-time":"2024-07-08T00:40:33Z","timestamp":1720399233886},"reference-count":31,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2021,2,5]],"date-time":"2021-02-05T00:00:00Z","timestamp":1612483200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"Both light emitting diode (LED) characteristics for illumination and communication simultaneously have made visible light communication-orthogonal frequency division multiplexing (VLC-OFDM) a strong competitive to radio frequency (RF). In this juncture, to improve signal to noise ratio (SNR) and coverage contour, the wavelet-OFDM is suggested for indoor VLC systems. In this paper, a wavelet VLC-OFDM is proposed for imaging multiple-input multiple-output (MIMO) systems. The proposed wavelet-OFDM is exploited for a hybrid space-frequency domain pre-equalization technique instead of the traditional fast Fourier transform (FFT)-OFDM technique. The Meyer filter is selected and employed in the proposed technique. A comparable achievement is elaborated for several numbers of channels to achieve the enhanced performance in terms of bit rate and coverage contour. In addition, a useful comparison is executed between our wavelet VLC-OFDM and the traditional FFT-OFDM for a hybrid space-frequency domain pre-equalization technique. The simulation results emphasize the superiority point of wavelet VLC-OFDM MIMO system by improving the coverage contour by ~20% over the traditional OFDM at a 10\u22123 bit error rate (BER) target. Hence, the proposed technique can be potentially executed in indoor VLC-MIMO systems.<\/jats:p>","DOI":"10.3390\/sym13020270","type":"journal-article","created":{"date-parts":[[2021,2,5]],"date-time":"2021-02-05T13:33:48Z","timestamp":1612532028000},"page":"270","source":"Crossref","is-referenced-by-count":2,"title":["Indoor Wavelet OFDM VLC-MIMO System: Performance Evaluation"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"http:\/\/orcid.org\/0000-0002-1191-5797","authenticated-orcid":false,"given":"Waleed K.","family":"Badawi","sequence":"first","affiliation":[{"name":"Department of Electronics and Communication Engineering, Collage of Engineering and Technology, Arab Academy for Science, Technology and Maritime Transport, Alexandria 1029, Egypt"}]},{"given":"Marwa G.","family":"El-Hossary","sequence":"additional","affiliation":[{"name":"Department of Electronics and Communication Engineering, Collage of Engineering and Technology, Arab Academy for Science, Technology and Maritime Transport, Alexandria 1029, Egypt"}]},{"ORCID":"http:\/\/orcid.org\/0000-0003-1966-3755","authenticated-orcid":false,"given":"Moustafa H.","family":"Aly","sequence":"additional","affiliation":[{"name":"Department of Electronics and Communication Engineering, Collage of Engineering and Technology, Arab Academy for Science, Technology and Maritime Transport, Alexandria 1029, Egypt"}]}],"member":"1968","published-online":{"date-parts":[[2021,2,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Vu\u010di\u0107, J., and Langer, K. 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