Indoor visible light communication channel equalization method based on improved K-means
The invention provides an indoor visible light communication channel equalization method based on improved K-means, and the method comprises the steps: 1, enabling a photoelectric detector to receive an optical signal transmitted through an optical wireless channel, and converting the optical signal...
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| creator | LIN YING NAN YUTONG PENG DUO GIACOJUN LIAN JIANGLONG LEI LEI ZHANG KETONG WANG JIANING NIU ZHEN |
| description | The invention provides an indoor visible light communication channel equalization method based on improved K-means, and the method comprises the steps: 1, enabling a photoelectric detector to receive an optical signal transmitted through an optical wireless channel, and converting the optical signal into an electric signal; 2, sequentially performing analog-to-digital conversion (A/D), serial-to-parallel conversion (S/P), CP deletion and Fourier transform (FFT) on the electric signal; 3, mapping the data subjected to FFT to a three-dimensional space by using a BP neural network; step 4, clustering is carried out on the mapped data by using an IC-Kmeans algorithm; and 5, demodulating and recovering the original binary sequence. According to the invention, an IC-Kmeans and NNIC-Kmeans balancing technology is provided; an auxiliary training sequence is introduced into the IC-Kmeans, so that the K-means equalization complexity is reduced; according to the method, the NNIC-Kmeans is introduced into the neural netw |
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According to the invention, an IC-Kmeans and NNIC-Kmeans balancing technology is provided; an auxiliary training sequence is introduced into the IC-Kmeans, so that the K-means equalization complexity is reduced; according to the method, the NNIC-Kmeans is introduced into the neural netw</description><language>chi ; eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; TRANSMISSION ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230509&DB=EPODOC&CC=CN&NR=116094596A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230509&DB=EPODOC&CC=CN&NR=116094596A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIN YING</creatorcontrib><creatorcontrib>NAN YUTONG</creatorcontrib><creatorcontrib>PENG DUO</creatorcontrib><creatorcontrib>GIACOJUN</creatorcontrib><creatorcontrib>LIAN JIANGLONG</creatorcontrib><creatorcontrib>LEI LEI</creatorcontrib><creatorcontrib>ZHANG KETONG</creatorcontrib><creatorcontrib>WANG JIANING</creatorcontrib><creatorcontrib>NIU ZHEN</creatorcontrib><title>Indoor visible light communication channel equalization method based on improved K-means</title><description>The invention provides an indoor visible light communication channel equalization method based on improved K-means, and the method comprises the steps: 1, enabling a photoelectric detector to receive an optical signal transmitted through an optical wireless channel, and converting the optical signal into an electric signal; 2, sequentially performing analog-to-digital conversion (A/D), serial-to-parallel conversion (S/P), CP deletion and Fourier transform (FFT) on the electric signal; 3, mapping the data subjected to FFT to a three-dimensional space by using a BP neural network; step 4, clustering is carried out on the mapped data by using an IC-Kmeans algorithm; and 5, demodulating and recovering the original binary sequence. According to the invention, an IC-Kmeans and NNIC-Kmeans balancing technology is provided; an auxiliary training sequence is introduced into the IC-Kmeans, so that the K-means equalization complexity is reduced; according to the method, the NNIC-Kmeans is introduced into the neural netw</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>TRANSMISSION</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZIjwzEvJzy9SKMsszkzKSVXIyUzPKFFIzs_NLc3LTE4syczPU0jOSMzLS81RSC0sTczJrIII5qaWZOSnKCQlFqemKAD5mbkFRfllQLa3bm5qYl4xDwNrWmJOcSovlOZmUHRzDXH20E0tyI9PLS5ITE7NSy2Jd_YzNDQzsDQxtTRzNCZGDQDg-Dq2</recordid><startdate>20230509</startdate><enddate>20230509</enddate><creator>LIN YING</creator><creator>NAN YUTONG</creator><creator>PENG DUO</creator><creator>GIACOJUN</creator><creator>LIAN JIANGLONG</creator><creator>LEI LEI</creator><creator>ZHANG KETONG</creator><creator>WANG JIANING</creator><creator>NIU ZHEN</creator><scope>EVB</scope></search><sort><creationdate>20230509</creationdate><title>Indoor visible light communication channel equalization method based on improved K-means</title><author>LIN YING ; NAN YUTONG ; PENG DUO ; GIACOJUN ; LIAN JIANGLONG ; LEI LEI ; ZHANG KETONG ; WANG JIANING ; NIU ZHEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN116094596A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2023</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>TRANSMISSION</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><toplevel>online_resources</toplevel><creatorcontrib>LIN YING</creatorcontrib><creatorcontrib>NAN YUTONG</creatorcontrib><creatorcontrib>PENG DUO</creatorcontrib><creatorcontrib>GIACOJUN</creatorcontrib><creatorcontrib>LIAN JIANGLONG</creatorcontrib><creatorcontrib>LEI LEI</creatorcontrib><creatorcontrib>ZHANG KETONG</creatorcontrib><creatorcontrib>WANG JIANING</creatorcontrib><creatorcontrib>NIU ZHEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LIN YING</au><au>NAN YUTONG</au><au>PENG DUO</au><au>GIACOJUN</au><au>LIAN JIANGLONG</au><au>LEI LEI</au><au>ZHANG KETONG</au><au>WANG JIANING</au><au>NIU ZHEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Indoor visible light communication channel equalization method based on improved K-means</title><date>2023-05-09</date><risdate>2023</risdate><abstract>The invention provides an indoor visible light communication channel equalization method based on improved K-means, and the method comprises the steps: 1, enabling a photoelectric detector to receive an optical signal transmitted through an optical wireless channel, and converting the optical signal into an electric signal; 2, sequentially performing analog-to-digital conversion (A/D), serial-to-parallel conversion (S/P), CP deletion and Fourier transform (FFT) on the electric signal; 3, mapping the data subjected to FFT to a three-dimensional space by using a BP neural network; step 4, clustering is carried out on the mapped data by using an IC-Kmeans algorithm; and 5, demodulating and recovering the original binary sequence. According to the invention, an IC-Kmeans and NNIC-Kmeans balancing technology is provided; an auxiliary training sequence is introduced into the IC-Kmeans, so that the K-means equalization complexity is reduced; according to the method, the NNIC-Kmeans is introduced into the neural netw</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
| title | Indoor visible light communication channel equalization method based on improved K-means |
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