Multi-source wireless optical communication spectrum sensing system and method

Multi-source wireless optical communication spectrum sensing system and method

The invention relates to a multi-source wireless optical communication spectrum sensing system, including: a transmit end, configured to transmit an optical signal, the transmit end including multiple LEDs; and a secondary user terminal, configured to: receive the optical signal transmitted by the t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: You, Xiaodi, Jiang, Zile, Shen, Gangxiang
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator You, Xiaodi
Jiang, Zile
Shen, Gangxiang
description The invention relates to a multi-source wireless optical communication spectrum sensing system, including: a transmit end, configured to transmit an optical signal, the transmit end including multiple LEDs; and a secondary user terminal, configured to: receive the optical signal transmitted by the transmit end, convert the optical signal into an electrical signal, filter out a direct current component in the electrical signal to obtain a filtered electrical signal, sample the electrical signal to obtain sampling data and a corresponding sampling quantity, perform channel estimation based on the sampling quantity and acquired location data of the secondary user terminal to obtain a channel matrix, calculate a detection metric M and a decision threshold K based on the channel matrix, the sampling data, and the sampling quantity, and determine, based on a value relationship between M and K, whether a channel is occupied by a primary user.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US12206452B2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US12206452B2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US12206452B23</originalsourceid><addsrcrecordid>eNqNyj0KAjEQhuFtLES9w3iABY0_B1AUG23UegnZbzWQZEJmgnh7LTyA1fsU77i5nGtQ3wrX4kAvXxAgQpzVOxvIcYw1fameE0mG01IjCZL49CB5iyKSTT1F6JP7aTMabBDMfp008-Phtj-1yNxBsnVI0O5-XRqz2K43ZmdW_zwfpUY3sQ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Multi-source wireless optical communication spectrum sensing system and method</title><source>esp@cenet</source><creator>You, Xiaodi ; Jiang, Zile ; Shen, Gangxiang</creator><creatorcontrib>You, Xiaodi ; Jiang, Zile ; Shen, Gangxiang</creatorcontrib><description>The invention relates to a multi-source wireless optical communication spectrum sensing system, including: a transmit end, configured to transmit an optical signal, the transmit end including multiple LEDs; and a secondary user terminal, configured to: receive the optical signal transmitted by the transmit end, convert the optical signal into an electrical signal, filter out a direct current component in the electrical signal to obtain a filtered electrical signal, sample the electrical signal to obtain sampling data and a corresponding sampling quantity, perform channel estimation based on the sampling quantity and acquired location data of the secondary user terminal to obtain a channel matrix, calculate a detection metric M and a decision threshold K based on the channel matrix, the sampling data, and the sampling quantity, and determine, based on a value relationship between M and K, whether a channel is occupied by a primary user.</description><language>eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; TRANSMISSION</subject><creationdate>2025</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&amp;date=20250121&amp;DB=EPODOC&amp;CC=US&amp;NR=12206452B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20250121&amp;DB=EPODOC&amp;CC=US&amp;NR=12206452B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>You, Xiaodi</creatorcontrib><creatorcontrib>Jiang, Zile</creatorcontrib><creatorcontrib>Shen, Gangxiang</creatorcontrib><title>Multi-source wireless optical communication spectrum sensing system and method</title><description>The invention relates to a multi-source wireless optical communication spectrum sensing system, including: a transmit end, configured to transmit an optical signal, the transmit end including multiple LEDs; and a secondary user terminal, configured to: receive the optical signal transmitted by the transmit end, convert the optical signal into an electrical signal, filter out a direct current component in the electrical signal to obtain a filtered electrical signal, sample the electrical signal to obtain sampling data and a corresponding sampling quantity, perform channel estimation based on the sampling quantity and acquired location data of the secondary user terminal to obtain a channel matrix, calculate a detection metric M and a decision threshold K based on the channel matrix, the sampling data, and the sampling quantity, and determine, based on a value relationship between M and K, whether a channel is occupied by a primary user.</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>TRANSMISSION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2025</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyj0KAjEQhuFtLES9w3iABY0_B1AUG23UegnZbzWQZEJmgnh7LTyA1fsU77i5nGtQ3wrX4kAvXxAgQpzVOxvIcYw1fameE0mG01IjCZL49CB5iyKSTT1F6JP7aTMabBDMfp008-Phtj-1yNxBsnVI0O5-XRqz2K43ZmdW_zwfpUY3sQ</recordid><startdate>20250121</startdate><enddate>20250121</enddate><creator>You, Xiaodi</creator><creator>Jiang, Zile</creator><creator>Shen, Gangxiang</creator><scope>EVB</scope></search><sort><creationdate>20250121</creationdate><title>Multi-source wireless optical communication spectrum sensing system and method</title><author>You, Xiaodi ; Jiang, Zile ; Shen, Gangxiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US12206452B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2025</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>TRANSMISSION</topic><toplevel>online_resources</toplevel><creatorcontrib>You, Xiaodi</creatorcontrib><creatorcontrib>Jiang, Zile</creatorcontrib><creatorcontrib>Shen, Gangxiang</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>You, Xiaodi</au><au>Jiang, Zile</au><au>Shen, Gangxiang</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Multi-source wireless optical communication spectrum sensing system and method</title><date>2025-01-21</date><risdate>2025</risdate><abstract>The invention relates to a multi-source wireless optical communication spectrum sensing system, including: a transmit end, configured to transmit an optical signal, the transmit end including multiple LEDs; and a secondary user terminal, configured to: receive the optical signal transmitted by the transmit end, convert the optical signal into an electrical signal, filter out a direct current component in the electrical signal to obtain a filtered electrical signal, sample the electrical signal to obtain sampling data and a corresponding sampling quantity, perform channel estimation based on the sampling quantity and acquired location data of the secondary user terminal to obtain a channel matrix, calculate a detection metric M and a decision threshold K based on the channel matrix, the sampling data, and the sampling quantity, and determine, based on a value relationship between M and K, whether a channel is occupied by a primary user.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_US12206452B2
source esp@cenet
subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
title Multi-source wireless optical communication spectrum sensing system and method
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-15T06%3A04%3A10IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=You,%20Xiaodi&rft.date=2025-01-21&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EUS12206452B2%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true