{"id":80634,"date":"2023-07-21T10:28:41","date_gmt":"2023-07-21T03:28:41","guid":{"rendered":"https:\/\/phongvu.vn\/cong-nghe\/?p=80634"},"modified":"2023-10-31T01:43:45","modified_gmt":"2023-10-30T18:43:45","slug":"ket-noi-khong-day-li-fi","status":"publish","type":"post","link":"https:\/\/phongvu.vn\/cong-nghe\/ket-noi-khong-day-li-fi\/","title":{"rendered":"Li-Fi: k\u1ebft n\u1ed1i kh\u00f4ng d\u00e2y nhanh g\u1ea5p 100 l\u1ea7n Wi-Fi, t\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a 224 GB\/s"},"content":{"rendered":"\n<p>C\u00f4ng ngh\u1ec7 Li-Fi, vi\u1ebft t\u1eaft c\u1ee7a &#8220;Light Fidelity,&#8221; l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 truy\u1ec1n d\u1eabn kh\u00f4ng d\u00e2y ti\u00ean ti\u1ebfn v\u00e0 \u0111ang thu h\u00fat s\u1ef1 ch\u00fa \u00fd c\u1ee7a c\u1ea3 th\u1ebf gi\u1edbi. \u0110\u01b0\u1ee3c ph\u00e1t tri\u1ec3n v\u00e0o nh\u1eefng n\u0103m \u0111\u1ea7u th\u1ebf k\u1ef7 21, Li-Fi s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y \u0111\u1ec3 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u, thay v\u00ec s\u1eed d\u1ee5ng s\u00f3ng radio nh\u01b0 Wi-Fi truy\u1ec1n th\u1ed1ng. Li-Fi t\u1ef1 h\u00e0o c\u00f3 t\u1ed1c \u0111\u1ed9 l\u00ean t\u1edbi 224 GB m\u1ed7i gi\u00e2y, trong khi Wi-Fi 7 d\u1ef1 ki\u1ebfn \u200b\u200bs\u1ebd c\u00f3 t\u1ed1c \u0111\u1ed9 trung b\u00ecnh l\u00e0 40 GB m\u1ed7i gi\u00e2y. T\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i n\u00e0y s\u1ebd r\u1ea5t c\u00f3 l\u1ee3i cho nh\u1eefng d\u1ecbch v\u1ee5 gi\u1ea3i tr\u00ed nh\u01b0 ch\u01a1i game ho\u1eb7c VR\/AR.\u00a0<\/p>\n\n\n\n<p>C\u00e2u chuy\u1ec7n v\u1ec1 Li-Fi kh\u00f4ng c\u00f2n m\u1edbi tuy nhi\u00ean nhi\u1ec1u anh em ch\u01b0a h\u1eb3n \u0111\u00e3 hi\u1ec3u r\u00f5 n\u00f3. <\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p>\u0110\u1ecdc th\u00eam: <\/p>\n\n\n\n<ul>\n<li><a href=\"https:\/\/phongvu.vn\/cong-nghe\/nhung-cac-de-tang-cuong-do-song-wifi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Top 12 c\u00e1ch l\u00e0m t\u0103ng s\u00f3ng wifi trong nh\u00e0 m\u1ea1nh g\u1ea5p \u0111\u00f4i<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/phongvu.vn\/cong-nghe\/xem-mat-khau-wifi-windows-11\/\" target=\"_blank\" rel=\"noreferrer noopener\">Windows 11 cho ph\u00e9p xem m\u1eadt kh\u1ea9u WiFi d\u1ec5 d\u00e0ng h\u01a1n<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/phongvu.vn\/cong-nghe\/3-thiet-bi-mo-rong-song-tot-nhat-dang-co-ban-tai-phong-vu\/\" target=\"_blank\" rel=\"noreferrer noopener\">C\u00e1c thi\u1ebft b\u1ecb m\u1edf r\u1ed9ng s\u00f3ng t\u1ed1t nh\u1ea5t \u0111ang c\u00f3 b\u00e1n t\u1ea1i Phong V\u0169!<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<ul><\/ul>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_55 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-6a1c76aed2b1e\" ><span class=\"\"><span style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-6a1c76aed2b1e\"  type=\"checkbox\" id=\"item-6a1c76aed2b1e\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/phongvu.vn\/cong-nghe\/ket-noi-khong-day-li-fi\/#Nguyen_ly_hoat_dong_Li-Fi_voi_tuong_tac_anh_sang\" title=\"Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng Li-Fi v\u1edbi t\u01b0\u01a1ng t\u00e1c \u00e1nh s\u00e1ng \">Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng Li-Fi v\u1edbi t\u01b0\u01a1ng t\u00e1c \u00e1nh s\u00e1ng <\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/phongvu.vn\/cong-nghe\/ket-noi-khong-day-li-fi\/#Qua_trinh_hoat_dong_cua_Li-Fi_co_cac_buoc_chinh_nhu_sau\" title=\"Qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Li-Fi c\u00f3 c\u00e1c b\u01b0\u1edbc ch\u00ednh nh\u01b0 sau:\">Qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Li-Fi c\u00f3 c\u00e1c b\u01b0\u1edbc ch\u00ednh nh\u01b0 sau:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/phongvu.vn\/cong-nghe\/ket-noi-khong-day-li-fi\/#Uu_diem_cua_Li-Fi_khi_so_sanh_voi_cong_nghe_Wi-Fi_truyen_thong\" title=\"\u01afu \u0111i\u1ec3m c\u1ee7a Li-Fi khi so s\u00e1nh v\u1edbi c\u00f4ng ngh\u1ec7 Wi-Fi truy\u1ec1n th\u1ed1ng\">\u01afu \u0111i\u1ec3m c\u1ee7a Li-Fi khi so s\u00e1nh v\u1edbi c\u00f4ng ngh\u1ec7 Wi-Fi truy\u1ec1n th\u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/phongvu.vn\/cong-nghe\/ket-noi-khong-day-li-fi\/#Han_che_cua_cong_nghe_Li-Fi\" title=\"H\u1ea1n ch\u1ebf c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi \">H\u1ea1n ch\u1ebf c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi <\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/phongvu.vn\/cong-nghe\/ket-noi-khong-day-li-fi\/#Tuong_lai_cua_cong_nghe_Li-Fi_doi_voi_su_phat_trien_cong_nghe\" title=\"T\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 \">T\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 <\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong_Li-Fi_voi_tuong_tac_anh_sang\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng Li-Fi v\u1edbi t\u01b0\u01a1ng t\u00e1c \u00e1nh s\u00e1ng <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Li-Fi r\u1ea5t \u0111\u01a1n gi\u1ea3n. C\u00f4ng ngh\u1ec7 n\u00e0y s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c, tia h\u1ed3ng ngo\u1ea1i ho\u1eb7c tia c\u1ef1c t\u00edm thay v\u00ec t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn \u0111\u1ec3 t\u1ea1o ra t\u00edn hi\u1ec7u d\u1eef li\u1ec7u th\u00f4ng qua vi\u1ec7c \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9 s\u00e1ng c\u1ee7a ch\u00fang. Sau \u0111\u00f3, c\u00e1c c\u1ea3m bi\u1ebfn \u0111\u1eb7c bi\u1ec7t nh\u1eadn di\u1ec7n t\u00edn hi\u1ec7u n\u00e0y v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh d\u1eef li\u1ec7u s\u1ed1. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u0103ng c\u01b0\u1eddng t\u00ednh b\u1ea3o m\u1eadt v\u00e0 t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eabn.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"800\" height=\"449\" src=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi.jpg\" alt=\"Li-Fi \" class=\"wp-image-80637\" srcset=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi.jpg 800w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi-300x168.jpg 300w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi-768x431.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"\"><figcaption class=\"wp-element-caption\">Li-Fi <\/figcaption><\/figure><\/div>\n\n\n<h3><span class=\"ez-toc-section\" id=\"Qua_trinh_hoat_dong_cua_Li-Fi_co_cac_buoc_chinh_nhu_sau\"><\/span>Qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Li-Fi c\u00f3 c\u00e1c b\u01b0\u1edbc ch\u00ednh nh\u01b0 sau:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul>\n<li>T\u1ea1o t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng: M\u1ed9t thi\u1ebft b\u1ecb Li-Fi s\u1ebd s\u1eed d\u1ee5ng \u0111\u00e8n LED \u0111\u1ec3 t\u1ea1o ra t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng. \u0110\u1ed9 s\u00e1ng c\u1ee7a \u0111\u00e8n LED s\u1ebd \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh theo c\u00e1c gi\u00e1 tr\u1ecb m\u00e3 h\u00f3a d\u1eef li\u1ec7u \u0111\u1ec3 t\u1ea1o ra c\u00e1c x\u00e2u bit th\u00f4ng tin.<\/li>\n\n\n\n<li>Truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u: \u00c1nh s\u00e1ng t\u1eeb \u0111\u00e8n LED s\u1ebd truy\u1ec1n t\u1ea3i th\u00f4ng tin d\u1eef li\u1ec7u qua kh\u00f4ng gian. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 di\u1ec5n ra trong ph\u1ea1m vi ng\u1eafn ho\u1eb7c xa t\u00f9y thu\u1ed9c v\u00e0o c\u00f4ng ngh\u1ec7 v\u00e0 m\u00f4i tr\u01b0\u1eddng \u00e1nh s\u00e1ng.<\/li>\n\n\n\n<li>Thu nh\u1eadn t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng: T\u00edn hi\u1ec7u \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c thu nh\u1eadn b\u1edfi c\u00e1c c\u1ea3m bi\u1ebfn \u0111\u1eb7c bi\u1ec7t tr\u00ean thi\u1ebft b\u1ecb \u0111\u00edch ho\u1eb7c b\u1ed9 thu Li-Fi. C\u00e1c c\u1ea3m bi\u1ebfn n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng nh\u1eadn di\u1ec7n t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng v\u00e0 chuy\u1ec3n \u0111\u1ed5i n\u00f3 th\u00e0nh d\u1eef li\u1ec7u s\u1ed1.<\/li>\n\n\n\n<li>Gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u: Sau khi t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c thu nh\u1eadn v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh d\u1eef li\u1ec7u s\u1ed1, thi\u1ebft b\u1ecb \u0111\u00edch s\u1ebd gi\u1ea3i m\u00e3 th\u00f4ng tin \u0111\u1ec3 t\u00e1i t\u1ea1o l\u1ea1i d\u1eef li\u1ec7u g\u1ed1c.<\/li>\n<\/ul>\n\n\n\n<p>M\u1ed9t \u0111i\u1ec3m quan tr\u1ecdng c\u1ee7a Li-Fi l\u00e0 s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa \u0111\u00e8n LED v\u00e0 c\u1ea3m bi\u1ebfn. \u0110\u00e8n LED ph\u00e1t ra t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng v\u00e0 c\u1ea3m bi\u1ebfn s\u1ebd nh\u1eadn di\u1ec7n c\u00e1c bi\u1ebfn \u0111\u1ed5i \u00e1nh s\u00e1ng \u0111\u1ec3 t\u1ea1o th\u00e0nh d\u1eef li\u1ec7u. Vi\u1ec7c n\u00e0y di\u1ec5n ra r\u1ea5t nhanh ch\u00f3ng, cho ph\u00e9p truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u v\u1edbi t\u1ed1c \u0111\u1ed9 cao v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<h2><span class=\"ez-toc-section\" id=\"Uu_diem_cua_Li-Fi_khi_so_sanh_voi_cong_nghe_Wi-Fi_truyen_thong\"><\/span>\u01afu \u0111i\u1ec3m c\u1ee7a Li-Fi khi so s\u00e1nh v\u1edbi c\u00f4ng ngh\u1ec7 Wi-Fi truy\u1ec1n th\u1ed1ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a Li-Fi l\u00e0 t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eabn c\u1ef1c k\u1ef3 nhanh. V\u1edbi t\u1ed1c \u0111\u1ed9 l\u00ean \u0111\u1ebfn 224 GB\/s, Li-Fi cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng t\u1ea3i xu\u1ed1ng v\u00e0 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u l\u1edbn ch\u1ec9 trong nh\u00e1y m\u1eaft. \u0110i\u1ec1u n\u00e0y m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i cho vi\u1ec7c truy\u1ec1n t\u1ea3i v\u00e0 chia s\u1ebb l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u trong th\u1eddi gian ng\u1eafn, gi\u00fap t\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c v\u00e0 ti\u1ebft ki\u1ec7m th\u1eddi gian \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n<p>Kh\u00f4ng ch\u1ec9 nhanh ch\u00f3ng v\u00e0 ti\u1ec7n l\u1ee3i, Li-Fi c\u00f2n c\u00f3 t\u00ednh b\u1ea3o m\u1eadt cao. Do s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y, t\u00edn hi\u1ec7u Li-Fi kh\u00f4ng th\u1ec3 \u0111i qua c\u00e1c v\u1eadt th\u1ec3 kh\u00f4ng trong su\u1ed1t, gi\u00fap h\u1ea1n ch\u1ebf nguy c\u01a1 r\u00f2 r\u1ec9 th\u00f4ng tin v\u00e0 t\u0103ng c\u01b0\u1eddng t\u00ednh ri\u00eang t\u01b0. \u0110i\u1ec1u n\u00e0y l\u00e0m cho Li-Fi tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn h\u1ea5p d\u1eabn trong c\u00e1c l\u0129nh v\u1ef1c \u0111\u00f2i h\u1ecfi s\u1ef1 b\u1ea3o m\u1eadt cao, nh\u01b0 y t\u1ebf, qu\u00e2n s\u1ef1 v\u00e0 nghi\u00ean c\u1ee9u khoa h\u1ecdc.<\/p>\n\n\n\n<p>M\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m kh\u00e1c c\u1ee7a Li-fi:<\/p>\n\n\n\n<ul>\n<li>Gi\u1ea3m t\u1ea3i m\u1ea1ng: Li-Fi c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong c\u00f9ng m\u1ed9t kh\u00f4ng gian v\u1edbi Wi-Fi m\u00e0 kh\u00f4ng g\u00e2y ra qu\u00e1 t\u1ea3i m\u1ea1ng. Do s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng l\u00e0m ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n t\u1ea3i, kh\u00f4ng g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb Wi-Fi kh\u00e1c trong khu v\u1ef1c.<\/li>\n\n\n\n<li>Ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng: \u0110\u00e8n LED \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong Li-Fi ti\u00eau th\u1ee5 \u00edt n\u0103ng l\u01b0\u1ee3ng h\u01a1n so v\u1edbi c\u00e1c b\u1ed9 ph\u00e1t Wi-Fi truy\u1ec1n th\u1ed1ng, gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/li>\n\n\n\n<li>Kh\u00f4ng g\u00e2y nhi\u1ec5u s\u00f3ng: Li-Fi kh\u00f4ng g\u00e2y nhi\u1ec5u s\u00f3ng radio, \u0111i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c khu v\u1ef1c y\u00eau c\u1ea7u t\u00ednh b\u1ea3o m\u1eadt cao nh\u01b0 b\u1ec7nh vi\u1ec7n, ng\u00e2n h\u00e0ng ho\u1eb7c c\u00e1c c\u01a1 quan ch\u00ednh ph\u1ee7.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng ngu\u1ed3n t\u00edn hi\u1ec7u phong ph\u00fa: \u00c1nh s\u00e1ng c\u00f3 m\u1eb7t h\u1ea7u h\u1ebft \u1edf m\u1ecdi n\u01a1i, cho ph\u00e9p Li-Fi truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau, bao g\u1ed3m c\u1ea3 trong nh\u00e0 v\u00e0 ngo\u00e0i tr\u1eddi.<\/li>\n\n\n\n<li>Kh\u00f4ng g\u00e2y ph\u00f3ng x\u1ea1: Kh\u00e1c v\u1edbi s\u00f3ng radio, \u00e1nh s\u00e1ng kh\u00f4ng g\u00e2y ra ph\u00f3ng x\u1ea1, l\u00e0m cho Li-Fi an to\u00e0n h\u01a1n khi s\u1eed d\u1ee5ng trong nh\u00e0 v\u00e0 xung quanh con ng\u01b0\u1eddi.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"800\" height=\"374\" src=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi2.jpg\" alt=\"Li-Fi\" class=\"wp-image-80638\" srcset=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi2.jpg 800w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi2-300x140.jpg 300w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi2-768x359.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"\"><figcaption class=\"wp-element-caption\">Li-Fi<\/figcaption><\/figure><\/div>\n\n\n<h2><span class=\"ez-toc-section\" id=\"Han_che_cua_cong_nghe_Li-Fi\"><\/span>H\u1ea1n ch\u1ebf c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul>\n<li>M\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 ch\u00ednh l\u00e0 ph\u1ea1m vi truy\u1ec1n t\u1ea3i h\u1ea1n ch\u1ebf c\u1ee7a \u00e1nh s\u00e1ng. Li-Fi ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng trong kh\u00f4ng gian c\u00f3 \u0111\u00e8n LED, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng thi\u1ebfu \u0111\u00e8n LED, Li-Fi kh\u00f4ng th\u1ec3 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3.<\/li>\n\n\n\n<li>\u1ea2nh h\u01b0\u1edfng c\u1ee7a \u00e1nh s\u00e1ng m\u00f4i tr\u01b0\u1eddng: M\u00f4i tr\u01b0\u1eddng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a Li-Fi, ch\u1eb3ng h\u1ea1n nh\u01b0 \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi ho\u1eb7c \u00e1nh s\u00e1ng nh\u1ea5p nh\u00e1y t\u1eeb c\u00e1c ngu\u1ed3n kh\u00e1c c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u.<\/li>\n\n\n\n<li>C\u1ea7n c\u00f3 ngu\u1ed3n \u00e1nh s\u00e1ng li\u00ean t\u1ee5c: Li-Fi c\u1ea7n s\u1eed d\u1ee5ng \u0111\u00e8n LED \u0111\u1ec3 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u th\u00f4ng qua \u00e1nh s\u00e1ng. N\u1ebfu ngu\u1ed3n \u00e1nh s\u00e1ng b\u1ecb gi\u00e1n \u0111o\u1ea1n ho\u1eb7c t\u1eaft, vi\u1ec7c truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u c\u0169ng s\u1ebd b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng c\u1ea3n tr\u1edf c\u1ee7a v\u1eadt th\u1ec3: S\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a v\u1eadt th\u1ec3 l\u1edbn ho\u1eb7c di chuy\u1ec3n trong \u0111\u01b0\u1eddng truy\u1ec1n \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n k\u1ebft n\u1ed1i v\u00e0 l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u.<\/li>\n\n\n\n<li>Th\u00edch nghi v\u1edbi c\u00e1c thi\u1ebft b\u1ecb hi\u1ec7n c\u00f3: \u0110\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 Li-Fi, c\u00e1c thi\u1ebft b\u1ecb c\u1ea7n \u0111\u01b0\u1ee3c trang b\u1ecb \u0111\u00e8n LED v\u00e0 c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi m\u1ed9t qu\u00e1 tr\u00ecnh th\u00edch nghi v\u00e0 ti\u00eau chu\u1ea9n h\u00f3a m\u1edbi \u0111\u1ec3 t\u00edch h\u1ee3p Li-Fi v\u00e0o c\u00e1c thi\u1ebft b\u1ecb th\u00f4ng minh hi\u1ec7n \u0111\u1ea1i.<\/li>\n\n\n\n<li>\u0110\u00f2i h\u1ecfi \u0111\u1ed9 tin c\u1eady cao: Li-Fi c\u00f3 th\u1ec3 y\u00eau c\u1ea7u \u0111\u1ed9 tin c\u1eady cao v\u00e0 m\u00f4i tr\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c nhi\u1ec5u s\u00f3ng \u00e1nh s\u00e1ng ho\u1eb7c quang th\u00edch h\u1ee3p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/li>\n\n\n\n<li>Chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u: \u0110\u1ec3 tri\u1ec3n khai h\u1ea1 t\u1ea7ng Li-Fi, c\u1ea7n \u0111\u1ea7u t\u01b0 v\u00e0o vi\u1ec7c thay th\u1ebf \u0111\u00e8n LED v\u00e0 c\u00e0i \u0111\u1eb7t c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c t\u00e0i ch\u00ednh ban \u0111\u1ea7u \u0111\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p v\u00e0 t\u1ed5 ch\u1ee9c.<\/li>\n<\/ul>\n\n\n\n<p>Tuy nhi\u00ean, v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 nghi\u00ean c\u1ee9u ti\u1ebfp t\u1ee5c, ta c\u00f3 th\u1ec3 ch\u1edd \u0111\u1ee3i th\u00eam nhi\u1ec1u \u1ee9ng d\u1ee5ng v\u00e0 c\u1ea3i ti\u1ebfn c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi trong t\u01b0\u01a1ng lai. Li-Fi c\u00f3 ti\u1ec1m n\u0103ng m\u1edf ra kh\u00f4ng gian m\u1edbi cho vi\u1ec7c truy\u1ec1n t\u1ea3i v\u00e0 chia s\u1ebb th\u00f4ng tin v\u1edbi t\u1ed1c \u0111\u1ed9 ch\u01b0a t\u1eebng th\u1ea5y, \u0111\u1ed3ng th\u1eddi \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 hi\u1ec7u su\u1ea5t trong c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c nhau.<\/p>\n\n\n\n<h2><span class=\"ez-toc-section\" id=\"Tuong_lai_cua_cong_nghe_Li-Fi_doi_voi_su_phat_trien_cong_nghe\"><\/span>T\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>T\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi h\u1ee9a h\u1eb9n l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn \u0111\u1ed9t ph\u00e1 trong l\u0129nh v\u1ef1c truy\u1ec1n th\u00f4ng v\u00e0 k\u1ebft n\u1ed1i internet. D\u1ef1 ki\u1ebfn, c\u00f4ng ngh\u1ec7 n\u00e0y s\u1ebd c\u00f3 nh\u1eefng xu h\u01b0\u1edbng v\u00e0 ti\u1ec1m n\u0103ng \u0111\u00e1ng k\u1ec3 trong th\u1eddi gian t\u1edbi:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"800\" height=\"400\" src=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lificv-1.jpg\" alt=\"T\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi\" class=\"wp-image-80639\" srcset=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lificv-1.jpg 800w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lificv-1-300x150.jpg 300w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lificv-1-768x384.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"\"><figcaption class=\"wp-element-caption\">T\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi<\/figcaption><\/figure><\/div>\n\n\n<p>V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 LED v\u00e0 \u0111\u00e8n laser, t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u c\u1ee7a Li-Fi c\u00f3 th\u1ec3 t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3, v\u01b0\u1ee3t xa c\u00e1c c\u00f4ng ngh\u1ec7 truy\u1ec1n th\u00f4ng hi\u1ec7n t\u1ea1i nh\u01b0 Wi-Fi. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap n\u00e2ng cao tr\u1ea3i nghi\u1ec7m c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi b\u0103ng th\u00f4ng l\u1edbn nh\u01b0 video 4K, tr\u00f2 ch\u01a1i tr\u1ef1c tuy\u1ebfn v\u00e0 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u l\u1edbn.<\/p>\n\n\n\n<p>C\u00e1c nghi\u00ean c\u1ee9u s\u1ebd t\u1eadp trung v\u00e0o vi\u1ec7c m\u1edf r\u1ed9ng ph\u1ea1m vi truy\u1ec1n t\u1ea3i c\u1ee7a Li-Fi, gi\u00fap cho vi\u1ec7c k\u1ebft n\u1ed1i trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n. C\u00f4ng ngh\u1ec7 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i trong c\u00e1c kh\u00f4ng gian c\u00f4ng c\u1ed9ng, b\u1ec7nh vi\u1ec7n, tr\u01b0\u1eddng h\u1ecdc v\u00e0 v\u0103n ph\u00f2ng.<\/p>\n\n\n\n<p>Li-Fi c\u00f3 ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng m\u1ea1nh m\u1ebd trong c\u00e1c l\u0129nh v\u1ef1c \u0111\u1eb7c th\u00f9 nh\u01b0 y t\u1ebf, h\u1ed7 tr\u1ee3 \u0111\u1ecbnh v\u1ecb trong nh\u00e0, trang tr\u00ed n\u1ed9i th\u1ea5t th\u00f4ng minh v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan \u0111\u1ebfn th\u1ecb gi\u00e1c. C\u00f4ng ngh\u1ec7 n\u00e0y c\u00f3 th\u1ec3 gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng.<\/p>\n\n\n\n<p>Li-Fi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o c\u00e1c h\u1ec7 th\u1ed1ng IoT, t\u1ea1o n\u00ean m\u00f4i tr\u01b0\u1eddng k\u1ebft n\u1ed1i th\u00f4ng minh v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n. V\u1edbi s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb IoT \u0111ang gia t\u0103ng, s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng \u0111\u1ec3 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p ti\u1ec1m n\u0103ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft t\u00ecnh tr\u1ea1ng c\u1ea1nh tranh t\u00e0i nguy\u00ean t\u1ea7n s\u1ed1 c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 kh\u00f4ng d\u00e2y kh\u00e1c.<\/p>\n\n\n\n<p>C\u00f4ng ngh\u1ec7 Li-Fi c\u1ea7n ti\u00eau chu\u1ea9n v\u00e0 quy chu\u1ea9n r\u00f5 r\u00e0ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 b\u1ea3o m\u1eadt. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap t\u1ea1o ra m\u00f4i tr\u01b0\u1eddng k\u1ebft n\u1ed1i an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"800\" height=\"420\" src=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi1.png\" alt=\"Li-Fi\" class=\"wp-image-80640\" srcset=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi1.png 800w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi1-300x158.png 300w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/07\/lifi1-768x403.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"\"><figcaption class=\"wp-element-caption\">Li-Fi<\/figcaption><\/figure><\/div>\n\n\n<p>Tuy nhi\u00ean, \u0111\u1ec3 th\u1ef1c s\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng ngh\u1ec7 ph\u1ed5 bi\u1ebfn, Li-Fi c\u1ea7n v\u01b0\u1ee3t qua m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c nh\u01b0 c\u1ea3i ti\u1ebfn ph\u1ea1m vi truy\u1ec1n t\u1ea3i, gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh s\u00e1ng m\u00f4i tr\u01b0\u1eddng v\u00e0 gi\u1ea3m chi ph\u00ed tri\u1ec3n khai. S\u1ef1 ph\u00e1t tri\u1ec3n ti\u1ebfp t\u1ee5c c\u1ee7a c\u00f4ng ngh\u1ec7 LED v\u00e0 c\u00e1c nghi\u00ean c\u1ee9u khoa h\u1ecdc s\u1ebd \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c th\u00fac \u0111\u1ea9y ti\u1ebfn b\u1ed9 v\u00e0 \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i c\u1ee7a c\u00f4ng ngh\u1ec7 Li-Fi trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<p>Sau khi ti\u00eau chu\u1ea9n IEEE 802.11bb \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 t\u00edch h\u1ee3p c\u00f4ng ngh\u1ec7 n\u00e0y v\u00e0o s\u1ea3n ph\u1ea9m c\u1ee7a h\u1ecd. C\u00f4ng ty h\u00e0ng \u0111\u1ea7u v\u1ec1 Li-Fi, pureLiFi, \u0111\u00e3 chu\u1ea9n b\u1ecb m\u00f4-\u0111un Light Antenna ONE \u0111\u1ec3 t\u00edch h\u1ee3p v\u00e0o c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i pureLiFi cho bi\u1ebft r\u1eb1ng c\u00f4ng ngh\u1ec7 m\u1ea1ng kh\u00f4ng d\u00e2y m\u1edbi n\u00e0y \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n Wi-Fi v\u00ec n\u00f3 cho ph\u00e9p nhi\u1ec1u k\u1ebft n\u1ed1i h\u01a1n m\u00e0 kh\u00f4ng g\u00e2y nhi\u1ec5u s\u00f3ng, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o t\u00ednh b\u1ea3o m\u1eadt v\u00e0 ri\u00eang t\u01b0 cao h\u01a1n. H\u01a1n n\u1eefa, n\u00f3 h\u1ed7 tr\u1ee3 cho c\u00e1c t\u00e1c v\u1ee5 \u0111\u00f2i h\u1ecfi nhi\u1ec1u b\u0103ng th\u00f4ng nh\u1ea5t. D\u1ef1 ki\u1ebfn, c\u00e1c thi\u1ebft b\u1ecb Li-Fi th\u01b0\u01a1ng m\u1ea1i s\u1ebd \u0111\u01b0\u1ee3c tr\u00ecnh l\u00e0ng t\u1ea1i Tri\u1ec3n l\u00e3m Di \u0111\u1ed9ng To\u00e0n c\u1ea7u (MWC) 2024 t\u1ea1i T\u00e2y Ban Nha.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile is-vertically-aligned-top has-white-background-color has-background\" style=\"grid-template-columns:32% auto\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/phongvu.vn\/thiet-bi-mang-usb-wifi-thu-song-tp-link-tl-wn821n--s19040467?utm_source=social&amp;utm_medium=technews&amp;utm_campaign=wifi-tplink\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"721\" src=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-17-204726-1024x721.png\" alt=\"\" class=\"wp-image-76644 size-full\" srcset=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-17-204726-1024x721.png 1024w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-17-204726-300x211.png 300w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-17-204726-768x540.png 768w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-17-204726.png 1205w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"\"><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-heading has-text-color\" style=\"color:#000000;font-size:22px\"><strong><strong>USB Wifi thu s\u00f3ng TP-Link TL-WN821N<\/strong><\/strong><\/p>\n\n\n\n<p class=\"has-vivid-red-color has-text-color has-medium-font-size\"><strong><strong><strong>199.000\u20ab<\/strong><\/strong><\/strong>  <\/p>\n\n\n\n<div class=\"is-layout-flex wp-block-buttons has-custom-font-size has-medium-font-size\">\n<div class=\"wp-block-button has-custom-font-size is-style-fill\" style=\"font-size:18px\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/phongvu.vn\/thiet-bi-mang-usb-wifi-thu-song-tp-link-tl-wn821n--s19040467?utm_source=social&amp;utm_medium=technews&amp;utm_campaign=wifi-tplink\" style=\"border-radius:20px\" target=\"_blank\" rel=\"noreferrer noopener\">MUA NGAY<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile is-vertically-aligned-top has-white-background-color has-background\" style=\"grid-template-columns:30% auto\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/phongvu.vn\/router-tplink-4g-m7350--s1701753?utm_source=social&amp;utm_medium=technews&amp;utm_campaign=wifi-4g-tplink\"><img decoding=\"async\" loading=\"lazy\" width=\"800\" height=\"800\" src=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/bo-phat-wifi-4g.jpg\" alt=\"\" class=\"wp-image-76722 size-full\" srcset=\"https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/bo-phat-wifi-4g.jpg 800w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/bo-phat-wifi-4g-300x300.jpg 300w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/bo-phat-wifi-4g-150x150.jpg 150w, https:\/\/phongvu.vn\/cong-nghe\/wp-content\/uploads\/2023\/02\/bo-phat-wifi-4g-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"\"><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-heading has-text-color\" style=\"color:#000000;font-size:22px\"><strong><strong>B\u1ed9 ph\u00e1t wifi 4G TP-Link M7350<\/strong><\/strong><\/p>\n\n\n\n<p class=\"has-vivid-red-color has-text-color has-medium-font-size\"><strong><strong><strong>1.399.000\u20ab<\/strong><\/strong><\/strong>     <s>1.999.000\u20ab<\/s><\/p>\n\n\n\n<div class=\"is-layout-flex wp-block-buttons has-custom-font-size has-medium-font-size\">\n<div class=\"wp-block-button has-custom-font-size is-style-fill\" style=\"font-size:18px\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/phongvu.vn\/router-tplink-4g-m7350--s1701753?utm_source=social&amp;utm_medium=technews&amp;utm_campaign=wifi-4g-tplink\" style=\"border-radius:20px\" target=\"_blank\" rel=\"noreferrer noopener\">MUA NGAY<\/a><\/div>\n<\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f4ng ngh\u1ec7 Li-Fi, vi\u1ebft t\u1eaft c\u1ee7a &#8220;Light Fidelity,&#8221; l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 truy\u1ec1n d\u1eabn kh\u00f4ng d\u00e2y ti\u00ean ti\u1ebfn v\u00e0 \u0111ang thu h\u00fat s\u1ef1 ch\u00fa \u00fd c\u1ee7a c\u1ea3 th\u1ebf gi\u1edbi. \u0110\u01b0\u1ee3c ph\u00e1t tri\u1ec3n v\u00e0o nh\u1eefng n\u0103m \u0111\u1ea7u th\u1ebf k\u1ef7 21, Li-Fi s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y \u0111\u1ec3 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u, thay v\u00ec s\u1eed d\u1ee5ng [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":80636,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false},"categories":[1864,74],"tags":[],"_links":{"self":[{"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/posts\/80634"}],"collection":[{"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/comments?post=80634"}],"version-history":[{"count":3,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/posts\/80634\/revisions"}],"predecessor-version":[{"id":80647,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/posts\/80634\/revisions\/80647"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/media\/80636"}],"wp:attachment":[{"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/media?parent=80634"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/categories?post=80634"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/tags?post=80634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}