Synchronous time multiplexing for non-line-of-sight multiple-input multiple-output optical camera communications
In typical multiple-input multiple-output (MIMO) optical camera communication (OCC) systems, the spatial correlation of MIMO channels is large. Optical signals between light sources can easily interfere with each other, negatively impacting the overall transmission performance. In this work, we prop...
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| Veröffentlicht in: | Optics letters 2024-05, Vol.49 (10), p.2657-2660 |
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| creator | Chen, Shaoqi Chi, Xuefen |
| description | In typical multiple-input multiple-output (MIMO) optical camera communication (OCC) systems, the spatial correlation of MIMO channels is large. Optical signals between light sources can easily interfere with each other, negatively impacting the overall transmission performance. In this work, we propose a time-multiplexing integral modulation scheme for a non-line-of-sight MIMO OCC system, where each LED transmits different signals to improve both the data rate and security of the system. A genetic algorithm (GA)-based adaptive multi-threshold scheme is designed to demodulate the blurred fringes in multi-level pulse amplitude modulation. The experimental results show that at a distance of 2.5 m, a data rate of 16.4 kb/s can reach with the BER performance of 3.01 × 10
, which validates the superiority and reliability of our proposed schemes. |
| doi_str_mv | 10.1364/OL.522540 |
| format | Article |
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, which validates the superiority and reliability of our proposed schemes.</description><subject>Adaptive algorithms</subject><subject>Cameras</subject><subject>Genetic algorithms</subject><subject>Light sources</subject><subject>Line of sight</subject><subject>MIMO communication</subject><subject>Pulse amplitude modulation</subject><subject>Time multiplexing</subject><issn>0146-9592</issn><issn>1539-4794</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNpdkV9LwzAUxYMobk4f_AJS8EUfMpMmaZtHGf6Dwh7U55Km6ZbRJjVJwX17MzaHyH243MuPw7n3AHCN0RyTjD4syzlLU0bRCZhiRjikOaenYIowzSBnPJ2AC-83CKEsJ-QcTEiR0wKnfAqG962Ra2eNHX0SdK-SfuyCHjr1rc0qaa1LjDWw00ZB20KvV-twRKA2w_hntGPYzXYIWooukaJXTiTS9v1o4iZoa_wlOGtF59XVoc_A5_PTx-IVlsuXt8VjCWWakwCZamPltcRcKE5YXtRFtByNc1ZjQRFJc5GyomVE8gahFpNGUZk2vFFZKzIyA3d73cHZr1H5UPXaS9V1wqh4a0UQY5SRjNCI3v5DN3Z0JrrbUTmhiDMUqfs9JZ313qm2GpzuhdtWGFW7GKplWe1jiOzNQXGse9Ucyd-_kx8fx4Rm</recordid><startdate>20240515</startdate><enddate>20240515</enddate><creator>Chen, Shaoqi</creator><creator>Chi, Xuefen</creator><general>Optical Society of America</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-8671-1318</orcidid><orcidid>https://orcid.org/0000-0002-8325-0309</orcidid></search><sort><creationdate>20240515</creationdate><title>Synchronous time multiplexing for non-line-of-sight multiple-input multiple-output optical camera communications</title><author>Chen, Shaoqi ; Chi, Xuefen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c273t-5efefe7bc19ae93578b848138795b1a40327a258f53c9d00f13de4c2d9de6fa63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Adaptive algorithms</topic><topic>Cameras</topic><topic>Genetic algorithms</topic><topic>Light sources</topic><topic>Line of sight</topic><topic>MIMO communication</topic><topic>Pulse amplitude modulation</topic><topic>Time multiplexing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Shaoqi</creatorcontrib><creatorcontrib>Chi, Xuefen</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Optics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Shaoqi</au><au>Chi, Xuefen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synchronous time multiplexing for non-line-of-sight multiple-input multiple-output optical camera communications</atitle><jtitle>Optics letters</jtitle><addtitle>Opt Lett</addtitle><date>2024-05-15</date><risdate>2024</risdate><volume>49</volume><issue>10</issue><spage>2657</spage><epage>2660</epage><pages>2657-2660</pages><issn>0146-9592</issn><eissn>1539-4794</eissn><abstract>In typical multiple-input multiple-output (MIMO) optical camera communication (OCC) systems, the spatial correlation of MIMO channels is large. Optical signals between light sources can easily interfere with each other, negatively impacting the overall transmission performance. In this work, we propose a time-multiplexing integral modulation scheme for a non-line-of-sight MIMO OCC system, where each LED transmits different signals to improve both the data rate and security of the system. A genetic algorithm (GA)-based adaptive multi-threshold scheme is designed to demodulate the blurred fringes in multi-level pulse amplitude modulation. The experimental results show that at a distance of 2.5 m, a data rate of 16.4 kb/s can reach with the BER performance of 3.01 × 10
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| ispartof | Optics letters, 2024-05, Vol.49 (10), p.2657-2660 |
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| source | Optica Publishing Group Journals |
| subjects | Adaptive algorithms Cameras Genetic algorithms Light sources Line of sight MIMO communication Pulse amplitude modulation Time multiplexing |
| title | Synchronous time multiplexing for non-line-of-sight multiple-input multiple-output optical camera communications |
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