Underwater wireless optical communication system incorporating WMZCC and DPS codes under pure sea, clear ocean and coastal sea
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Simarpreet Kaur
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Vikas Wasson
Abstract
The ability of the optical code division multiplexing approach to allow secure information transfer has sparked a great deal of interest in underwater wireless optical communication (UWOC). A weight managed zero cross correlation (WMZCC) code based UWOC system is presented delivering 5 users × 10 Gbps capacity under different ocean/sea conditions such as pure sea, clear ocean and coastal sea. The WMZCC code has least user interferences, mapping free code construction, weight managed, controlled code length, and less complexity. The performance comparisons between WMZCC codes and diagonal permutation shift (DPS) are established by considering Q factor as evaluation parameter and results revealed that performance of WMZCC is better than DPS due to ZCC code. Q factor values under pure sea at 13 m for WMZCC codes and DPS codes are 13.24 and 9.86 respectively. For 7.2 m UWOC link distance, Q factor values obtained are 13.1 and 10.2 in case of WMZCC and DPS respectively under coastal sea. On contrary, DPS has variable cross correlation and therefore experience more multiple access interference (MAI). The presented system successfully offered >20 % performance improvement in Q factor as compared to DPS codes in UWOC.
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Research ethics: There are no conflicts of interests.
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Author contributions: Dr. Simarpreet Kaur has simulated the preseanted system and Dr. Vikas Wasson has written the article.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: Work is performed in Chandigarh University Gharuan India.
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Research funding: No funding.
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Data availability: Not applicable.
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