Experimental DCO-OFDM Optical Camera Communication Systems With a Commercial Smartphone Camera
Modern handheld mobile devices are equipped with a complementary metal-oxide-semiconductor (CMOS) image sensor. These image sensors are capable of perceiving intensity changes in optically modulated signals, driving the rapid development of optical camera communication (OCC). In this study, direct-c...
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8873644/ |
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| author | Jenn-Kaie Lain Zheng-Dao Yang Ting-Wei Xu |
| author_facet | Jenn-Kaie Lain Zheng-Dao Yang Ting-Wei Xu |
| author_sort | Jenn-Kaie Lain |
| collection | DOAJ |
| description | Modern handheld mobile devices are equipped with a complementary metal-oxide-semiconductor (CMOS) image sensor. These image sensors are capable of perceiving intensity changes in optically modulated signals, driving the rapid development of optical camera communication (OCC). In this study, direct-current offset orthogonal frequency division multiplexing (DCO-OFDM) was developed for a rolling shutter OCC system in order to improve the data transmission rates of OCC systems. Two DCO-OFDM OCC signal detection algorithms, namely the parabolic column vector selection (P-CVS) algorithm and the decomposition of extremely low frequency component (D-ELFC) algorithm, were proposed, along with a frequency-domain downsampling scheme, to eliminate the influence from both the blooming effect and shot noise. The experimental results, obtained after using a self-built DCO-OFDM OCC testbed with a general commercial smartphone camera, demonstrated that the D-ELFC algorithm outperformed in the bit error rate (BER) in comparison to the P-CVS algorithm and achieved a data transmission rate >22 kbps under the conditions of the BER being below the 20% forward error correction (FEC) limit and the illuminance being higher than 510 lux. |
| format | Article |
| id | doaj-art-4aa3f181d0ba4039a8077c9f81b5e0c9 |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-4aa3f181d0ba4039a8077c9f81b5e0c92025-07-01T23:46:16ZengIEEEIEEE Photonics Journal1943-06552019-01-0111611310.1109/JPHOT.2019.29480718873644Experimental DCO-OFDM Optical Camera Communication Systems With a Commercial Smartphone CameraJenn-Kaie Lain0https://orcid.org/0000-0001-6781-7507Zheng-Dao Yang1https://orcid.org/0000-0002-4596-2380Ting-Wei Xu2Department of Electronic Engineering, National Yunlin University of Science and Technology, Yunlin, TaiwanDepartment of Electronic Engineering, National Yunlin University of Science and Technology, Yunlin, TaiwanDepartment of Electronic Engineering, National Yunlin University of Science and Technology, Yunlin, TaiwanModern handheld mobile devices are equipped with a complementary metal-oxide-semiconductor (CMOS) image sensor. These image sensors are capable of perceiving intensity changes in optically modulated signals, driving the rapid development of optical camera communication (OCC). In this study, direct-current offset orthogonal frequency division multiplexing (DCO-OFDM) was developed for a rolling shutter OCC system in order to improve the data transmission rates of OCC systems. Two DCO-OFDM OCC signal detection algorithms, namely the parabolic column vector selection (P-CVS) algorithm and the decomposition of extremely low frequency component (D-ELFC) algorithm, were proposed, along with a frequency-domain downsampling scheme, to eliminate the influence from both the blooming effect and shot noise. The experimental results, obtained after using a self-built DCO-OFDM OCC testbed with a general commercial smartphone camera, demonstrated that the D-ELFC algorithm outperformed in the bit error rate (BER) in comparison to the P-CVS algorithm and achieved a data transmission rate >22 kbps under the conditions of the BER being below the 20% forward error correction (FEC) limit and the illuminance being higher than 510 lux.https://ieeexplore.ieee.org/document/8873644/DCO-OFDMLEDoptical camera communicationsoptical wireless communications. |
| spellingShingle | Jenn-Kaie Lain Zheng-Dao Yang Ting-Wei Xu Experimental DCO-OFDM Optical Camera Communication Systems With a Commercial Smartphone Camera IEEE Photonics Journal DCO-OFDM LED optical camera communications optical wireless communications. |
| title | Experimental DCO-OFDM Optical Camera Communication Systems With a Commercial Smartphone Camera |
| title_full | Experimental DCO-OFDM Optical Camera Communication Systems With a Commercial Smartphone Camera |
| title_fullStr | Experimental DCO-OFDM Optical Camera Communication Systems With a Commercial Smartphone Camera |
| title_full_unstemmed | Experimental DCO-OFDM Optical Camera Communication Systems With a Commercial Smartphone Camera |
| title_short | Experimental DCO-OFDM Optical Camera Communication Systems With a Commercial Smartphone Camera |
| title_sort | experimental dco ofdm optical camera communication systems with a commercial smartphone camera |
| topic | DCO-OFDM LED optical camera communications optical wireless communications. |
| url | https://ieeexplore.ieee.org/document/8873644/ |
| work_keys_str_mv | AT jennkaielain experimentaldcoofdmopticalcameracommunicationsystemswithacommercialsmartphonecamera AT zhengdaoyang experimentaldcoofdmopticalcameracommunicationsystemswithacommercialsmartphonecamera AT tingweixu experimentaldcoofdmopticalcameracommunicationsystemswithacommercialsmartphonecamera |