{"id":479699,"date":"2023-08-09T10:43:36","date_gmt":"2023-08-09T10:43:36","guid":{"rendered":""},"modified":"2023-09-05T11:19:24","modified_gmt":"2023-09-05T11:19:24","slug":"wlan","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/wlan\/","title":{"rendered":"m\u1ea1ng WLAN"},"content":{"rendered":"<p>M\u1ea1ng c\u1ee5c b\u1ed9 kh\u00f4ng d\u00e2y (WLAN) l\u00e0 m\u1ea1ng cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i v\u00e0 li\u00ean l\u1ea1c kh\u00f4ng d\u00e2y trong m\u1ed9t khu v\u1ef1c c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u00e0 ri\u00eang ho\u1eb7c v\u0103n ph\u00f2ng. N\u00f3 s\u1eed d\u1ee5ng s\u00f3ng v\u00f4 tuy\u1ebfn \u0111\u1ec3 cung c\u1ea5p k\u1ebft n\u1ed1i, cho ph\u00e9p t\u1ef1 do di chuy\u1ec3n trong v\u00f9ng ph\u1ee7 s\u00f3ng c\u1ee7a m\u1ea1ng.<\/p>\n<h2>L\u1ecbch s\u1eed c\u1ee7a m\u1ea1ng WLAN v\u00e0 s\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean c\u1ee7a n\u00f3<\/h2>\n<p>Ngu\u1ed3n g\u1ed1c c\u1ee7a m\u1ea1ng WLAN b\u1eaft ngu\u1ed3n t\u1eeb nh\u1eefng n\u0103m 1970 khi Vi\u1ec7n K\u1ef9 s\u01b0 \u0110i\u1ec7n v\u00e0 \u0110i\u1ec7n t\u1eed (IEEE) b\u1eaft \u0111\u1ea7u nghi\u00ean c\u1ee9u c\u00e1c ti\u00eau chu\u1ea9n cho truy\u1ec1n th\u00f4ng kh\u00f4ng d\u00e2y. L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kh\u00e1i ni\u1ec7m n\u00e0y c\u00f3 th\u1ec3 l\u00e0 do ALOHAnet c\u1ee7a Norman Abramson, m\u1ed9t h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng m\u00e1y t\u00ednh kh\u00f4ng d\u00e2y ti\u00ean phong \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n t\u1ea1i \u0110\u1ea1i h\u1ecdc Hawaii. N\u0103m 1997, IEEE ho\u00e0n thi\u1ec7n chu\u1ea9n 802.11, khai sinh ra c\u00f4ng ngh\u1ec7 WLAN hi\u1ec7n \u0111\u1ea1i.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 WLAN: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1<\/h2>\n<p>WLAN cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng c\u1ee5c b\u1ed9 m\u00e0 kh\u00f4ng c\u1ea7n c\u00e1p v\u1eadt l\u00fd, s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn (RF) \u0111\u1ec3 truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u. C\u00e1c ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn nh\u1ea5t cho m\u1ea1ng WLAN bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>802.11a:<\/strong> Ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 5 GHz, t\u1ed1c \u0111\u1ed9 l\u00ean t\u1edbi 54 Mbps.<\/li>\n<li><strong>802.11b:<\/strong> Ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 2,4 GHz, cung c\u1ea5p t\u1ed1c \u0111\u1ed9 l\u00ean t\u1edbi 11 Mbps.<\/li>\n<li><strong>802.11g:<\/strong> S\u1eed d\u1ee5ng t\u1ea7n s\u1ed1 2,4 GHz, t\u1ed1c \u0111\u1ed9 l\u00ean t\u1edbi 54 Mbps.<\/li>\n<li><strong>802.11n:<\/strong> Cung c\u1ea5p t\u1ed1c \u0111\u1ed9 cao h\u01a1n, c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea1t t\u1edbi 600 Mbps.<\/li>\n<li><strong>802.11ac:<\/strong> \u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi t\u00ean g\u1ecdi Wi-Fi 5, h\u1ed7 tr\u1ee3 MIMO nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng, v\u1edbi t\u1ed1c \u0111\u1ed9 l\u00ean t\u1edbi 1 Gbps.<\/li>\n<\/ul>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a m\u1ea1ng WLAN: C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng WLAN<\/h2>\n<p>WLAN bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh sau:<\/p>\n<ol>\n<li><strong>\u0110i\u1ec3m truy c\u1eadp (AP):<\/strong> \u0110\u00f3ng vai tr\u00f2 l\u00e0 trung t\u00e2m c\u1ee7a m\u1ea1ng, truy\u1ec1n v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/li>\n<li><strong>C\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng d\u00e2y:<\/strong> Ch\u00fang bao g\u1ed3m \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh x\u00e1ch tay, m\u00e1y t\u00ednh b\u1ea3ng, v.v., \u0111\u01b0\u1ee3c trang b\u1ecb b\u1ed9 \u0111i\u1ec1u h\u1ee3p kh\u00f4ng d\u00e2y.<\/li>\n<li><strong>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng d\u00e2y:<\/strong> C\u00e1c th\u00e0nh ph\u1ea7n t\u00f9y ch\u1ecdn qu\u1ea3n l\u00fd nhi\u1ec1u AP, n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o m\u1eadt m\u1ea1ng.<\/li>\n<\/ol>\n<p>Vi\u1ec7c truy\u1ec1n x\u1ea3y ra tr\u00ean c\u00e1c k\u00eanh trong d\u1ea3i t\u1ea7n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh v\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an ninh.<\/p>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a m\u1ea1ng WLAN<\/h2>\n<p>M\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a m\u1ea1ng WLAN bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>T\u00ednh di \u0111\u1ed9ng:<\/strong> Cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng di chuy\u1ec3n t\u1ef1 do trong v\u00f9ng ph\u1ee7 s\u00f3ng.<\/li>\n<li><strong>D\u1ec5 d\u00e0ng c\u00e0i \u0111\u1eb7t:<\/strong> C\u00e0i \u0111\u1eb7t nhanh ch\u00f3ng v\u00e0 \u0111\u01a1n gi\u1ea3n m\u00e0 kh\u00f4ng c\u1ea7n c\u00e1p v\u1eadt l\u00fd.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> C\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng \u0111\u1ec3 ch\u1ee9a nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng v\u00e0 thi\u1ebft b\u1ecb h\u01a1n.<\/li>\n<li><strong>B\u1ea3o v\u1ec7:<\/strong> S\u1eed d\u1ee5ng c\u00e1c giao th\u1ee9c m\u00e3 h\u00f3a v\u00e0 x\u00e1c th\u1ef1c nh\u01b0 WPA2 v\u00e0 WPA3.<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i m\u1ea1ng WLAN: S\u1eed d\u1ee5ng b\u1ea3ng v\u00e0 danh s\u00e1ch<\/h2>\n<p>WLAN c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh nhi\u1ec1u lo\u1ea1i kh\u00e1c nhau:<\/p>\n<h3>D\u1ef1a tr\u00ean c\u1ea5u h\u00ecnh:<\/h3>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng<\/td>\n<td>S\u1eed d\u1ee5ng c\u00e1c AP \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng c\u00f3 d\u00e2y<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1eb7c bi\u1ec7t<\/td>\n<td>Giao ti\u1ebfp tr\u1ef1c ti\u1ebfp gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb m\u00e0 kh\u00f4ng c\u1ea7n s\u1ef1 ph\u1ed1i h\u1ee3p trung t\u00e2m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>D\u1ef1a tr\u00ean d\u1ea3i t\u1ea7n s\u1ed1:<\/h3>\n<ul>\n<li><strong>2,4 GHz:<\/strong> Ph\u1ea1m vi r\u1ed9ng h\u01a1n nh\u01b0ng ch\u1eadm h\u01a1n<\/li>\n<li><strong>5 GHz:<\/strong> Nhanh h\u01a1n nh\u01b0ng ph\u1ea1m vi ng\u1eafn h\u01a1n<\/li>\n<\/ul>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng m\u1ea1ng WLAN, s\u1ef1 c\u1ed1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n<p>WLAN \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong gia \u0111\u00ecnh, v\u0103n ph\u00f2ng, s\u00e2n bay v\u00e0 kh\u00f4ng gian c\u00f4ng c\u1ed9ng. Tuy nhi\u00ean, c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 nhi\u1ec5u, ph\u1ea1m vi h\u1ea1n ch\u1ebf v\u00e0 l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt c\u00f3 th\u1ec3 x\u1ea3y ra. C\u00e1c gi\u1ea3i ph\u00e1p bao g\u1ed3m l\u1ef1a ch\u1ecdn k\u00eanh ph\u00f9 h\u1ee3p, s\u1eed d\u1ee5ng c\u00e1c giao th\u1ee9c m\u00e3 h\u00f3a c\u1eadp nh\u1eadt v\u00e0 tri\u1ec3n khai thi\u1ebft k\u1ebf m\u1ea1ng ph\u00f9 h\u1ee3p.<\/p>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c tr\u01b0ng<\/th>\n<th>m\u1ea1ng WLAN<\/th>\n<th>M\u1ea1ng LAN (C\u00f3 d\u00e2y)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>T\u00ednh c\u01a1 \u0111\u1ed9ng<\/td>\n<td>Cao<\/td>\n<td>Th\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td>T\u1ed1c \u0111\u1ed9<\/td>\n<td>L\u00ean \u0111\u1ebfn 1 Gbps<\/td>\n<td>L\u00ean t\u1edbi 10Gbps<\/td>\n<\/tr>\n<tr>\n<td>B\u1ea3o v\u1ec7<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>Cao<\/td>\n<\/tr>\n<tr>\n<td>C\u00e0i \u0111\u1eb7t<\/td>\n<td>D\u1ec5 d\u00e0ng h\u01a1n<\/td>\n<td>Ph\u1ee9c t\u1ea1p h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn m\u1ea1ng WLAN<\/h2>\n<p>C\u00e1c xu h\u01b0\u1edbng t\u01b0\u01a1ng lai c\u1ee7a m\u1ea1ng WLAN bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>Wi-Fi 6 tr\u1edf l\u00ean:<\/strong> T\u1ed1c \u0111\u1ed9 cao h\u01a1n, \u0111\u1ed9 tr\u1ec5 th\u1ea5p h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/li>\n<li><strong>T\u00edch h\u1ee3p IoT:<\/strong> H\u1ed7 tr\u1ee3 n\u00e2ng cao cho c\u00e1c thi\u1ebft b\u1ecb Internet of Things.<\/li>\n<li><strong>Qu\u1ea3n l\u00fd d\u1ef1a tr\u00ean AI:<\/strong> T\u1ed1i \u01b0u h\u00f3a m\u1ea1ng t\u1ef1 \u0111\u1ed9ng b\u1eb1ng tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o.<\/li>\n<\/ul>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi m\u1ea1ng WLAN<\/h2>\n<p>C\u00e1c m\u00e1y ch\u1ee7 proxy nh\u01b0 OneProxy c\u00f3 th\u1ec3 n\u00e2ng cao m\u1ea1ng WLAN b\u1eb1ng c\u00e1ch t\u0103ng c\u01b0\u1eddng quy\u1ec1n ri\u00eang t\u01b0, l\u1ecdc n\u1ed9i dung v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t. B\u1eb1ng c\u00e1ch \u0111\u1ecbnh tuy\u1ebfn l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp th\u00f4ng qua m\u00e1y ch\u1ee7 proxy, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 duy tr\u00ec t\u00ednh \u1ea9n danh v\u00e0 ki\u1ec3m so\u00e1t c\u00e1c ho\u1ea1t \u0111\u1ed9ng tr\u1ef1c tuy\u1ebfn c\u1ee7a h\u1ecd trong m\u00f4i tr\u01b0\u1eddng WLAN.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.ieee.org\" target=\"_new\" rel=\"noopener nofollow\">Ti\u00eau chu\u1ea9n IEEE 802.11<\/a><\/li>\n<li><a href=\"https:\/\/www.wi-fi.org\" target=\"_new\" rel=\"noopener nofollow\">Li\u00ean minh Wi-Fi<\/a><\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/vn\/\" target=\"_new\" rel=\"noopener\">D\u1ecbch v\u1ee5 OneProxy<\/a><\/li>\n<\/ul>\n<p>C\u00e1c t\u00e0i nguy\u00ean n\u00e0y cung c\u1ea5p th\u00eam th\u00f4ng tin v\u1ec1 c\u00f4ng ngh\u1ec7, ti\u00eau chu\u1ea9n WLAN v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 li\u00ean quan do OneProxy cung c\u1ea5p.<\/p>","protected":false},"featured_media":470956,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479699","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Wireless Local Area Network (WLAN)<\/mark>","faq_items":[{"question":"What is Wireless Local Area Network (WLAN)?","answer":"<p>WLAN is a network that allows devices to connect and communicate wirelessly within a specific area. It uses radio waves to enable connectivity, eliminating the need for physical cables, and provides the freedom to move within the network's coverage area.<\/p>"},{"question":"What was the first mention of WLAN?","answer":"<p>The concept of WLAN can be traced back to Norman Abramson's ALOHAnet in the 1970s at the University of Hawaii. The IEEE later finalized the 802.11 standard in 1997, giving rise to modern WLAN technology.<\/p>"},{"question":"How does WLAN work?","answer":"<p>WLAN works by using radio frequency (RF) technology to transmit and receive data. It consists of Access Points (APs) that act as hubs, wireless devices like smartphones and laptops, and optional wireless controllers to manage the network. Data transmission occurs over specific channels and frequency bands, and security measures such as encryption are applied to protect the data.<\/p>"},{"question":"What are the key features of WLAN?","answer":"<p>Key features of WLAN include mobility, ease of setup, scalability, and security. It allows users to move freely within the coverage area, offers simple installation without physical cables, can be easily expanded, and utilizes encryption and authentication protocols to maintain security.<\/p>"},{"question":"What types of WLAN exist?","answer":"<p>WLAN can be categorized into Infrastructure and Ad-hoc based on configuration, and further divided based on frequency bands like 2.4 GHz and 5 GHz.<\/p>"},{"question":"What are common problems and solutions related to WLAN?","answer":"<p>Common problems in WLAN include interference, limited range, and security vulnerabilities. Solutions involve proper channel selection, using updated encryption protocols, and implementing proper network design.<\/p>"},{"question":"How does the future look for WLAN technology?","answer":"<p>The future of WLAN includes technologies like Wi-Fi 6, enhanced IoT integration, and AI-driven network management, promising higher speeds, lower latency, and more efficiency.<\/p>"},{"question":"How can proxy servers like OneProxy be associated with WLAN?","answer":"<p>Proxy servers such as OneProxy can be used with WLAN to provide increased privacy, content filtering, and performance optimization. By routing traffic through proxy servers, users can maintain control and anonymity over their online activities within a WLAN environment.<\/p>"},{"question":"Where can I find more information about WLAN?","answer":"<p>You can find more information about WLAN through related links like the <a href=\"https:\/\/www.ieee.org\" target=\"_new\">IEEE 802.11 Standards<\/a>, <a href=\"https:\/\/www.wi-fi.org\" target=\"_new\">Wi-Fi Alliance<\/a>, and <a href=\"https:\/\/oneproxy.pro\" target=\"_new\">OneProxy Services<\/a>.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479699\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/470956"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=479699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}