{"id":17572,"date":"2013-07-04T21:01:48","date_gmt":"2013-07-04T13:01:48","guid":{"rendered":"https:\/\/www.hongkiat.com\/blog\/?p=17572"},"modified":"2023-05-20T04:09:17","modified_gmt":"2023-05-19T20:09:17","slug":"wireless-ac-explained","status":"publish","type":"post","link":"https:\/\/www.hongkiat.com\/blog\/wireless-ac-explained\/","title":{"rendered":"802.11ac Wi-Fi Explained: What It is &amp; Why It&#8217;s Cool"},"content":{"rendered":"<p>The latest and greatest technology in WiFi is 802.11ac, which is expected to be significantly faster than the current market leader, 802.11n. However, the inspiration behind this <a href=\"https:\/\/www.hongkiat.com\/blog\/funny-wifi-names\/\">peculiar name<\/a> remains a mystery.<\/p>\n<p>Our aim is to clarify the meaning of 802.11ac, which, in addition to speed, boasts a few new technological breakthroughs.<\/p>\n<div class=\"ref-block ref-block--post\" id=\"ref-post-1\">\n\t\t\t\t\t<a href=\"https:\/\/www.hongkiat.com\/blog\/smarter-wifi-routers\/\" class=\"ref-block__link\" title=\"Read More: 10 Smart Routers That Solve All Your WiFi Problems\" rel=\"bookmark\"><span class=\"screen-reader-text\">10 Smart Routers That Solve All Your WiFi Problems<\/span><\/a>\n<div class=\"ref-block__thumbnail img-thumb img-thumb--jumbo\" data-img='{ \"src\" : \"https:\/\/assets.hongkiat.com\/uploads\/thumbs\/250x160\/smarter-wifi-routers.jpg\" }'>\n\t\t\t\t\t\t\t<noscript>\n<style>.no-js #ref-block-post-26379 .ref-block__thumbnail { background-image: url(\"https:\/\/assets.hongkiat.com\/uploads\/thumbs\/250x160\/smarter-wifi-routers.jpg\"); }<\/style>\n<\/noscript>\n\t\t\t\t\t\t<\/div>\n<div class=\"ref-block__summary\">\n<h4 class=\"ref-title\">10 Smart Routers That Solve All Your WiFi Problems<\/h4>\n<p class=\"ref-description\">\n\t\t\t\t\t\tWe are spending more and more of our lives online than off and WiFi connectivity has become a...\t\t\t\t\t\t<span>Read more<\/span><\/p>\n<\/div>\n<\/div>\n<h2>802.11ac Explained for Easy Understanding<\/h2>\n<p>802.11ac can also be referred to as Wireless-AC and is commonly known as Gigabit Wi-Fi. It is a step up from previous generations that were in the Megabit range (1 Giga = 1024 Mega). This new standard is <strong>roughly three times faster<\/strong> than Wireless-N.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/wireless-ac-explained\/gigabit-wifi.jpg\" alt=\"Gigabit Wi-Fi\" width=\"500\" height=\"233\"><\/figure>\n<p>However, it is important to note that the speeds are only theoretical maximums as there are many variables and factors that can cause it to slow down.<\/p>\n<h3>Speedbump Factors<\/h3>\n<p>These factors can come from<\/p>\n<ul>\n<li><strong>interference<\/strong> in the air waves by other types of radio signals<\/li>\n<li>having too <strong>many devices connected<\/strong> to the same wireless network<\/li>\n<li><strong>physical obstacles<\/strong> like walls<\/li>\n<li><strong>distance<\/strong> between your device and the router<\/li>\n<li><strong>congestion<\/strong> of sharing the same Wi-Fi channel as your neighbour.<\/li>\n<\/ul>\n<p>These factors are hard to overcome completely, so wireless-AC tries to \u2018overpower\u2019 it by having supercharging the hardware and by bringing in more tech advancements.<\/p>\n<h3>Wider \u2018Highways\u2019<\/h3>\n<p>Wireless-AC has <strong>wider bandwidth capabilities of 80 MHz<\/strong> (and an optional 160 MHz). By comparison, Wireless-N\u2019s bandwidth was only at 20 or 40 MHz. To explain this concept, imagine the MHz as lanes on a highway: 20 MHz represents 2 lanes and 80 MHz represents 8 lanes.<\/p>\n<p>The more lanes you have, the higher amount of data can pass through at the same time, thereby allowing you to maximize your connection speed.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/wireless-ac-explained\/bandwidth.jpg\" alt=\"Bandwidth\" width=\"500\" height=\"248\"><\/figure>\n<h2>Crowded Frequencies<\/h2>\n<p>On top of wider bandwidth, <strong>wireless-AC runs on the 5 GHz frequency band<\/strong> which is not as crowded as the 2.4 GHz band. The latter is crowded by signals from cordless phones, Bluetooth headsets, baby monitors, remote door openers and almost every wireless thing in your home.<\/p>\n<p>Most consumer products go for the 2.4 GHz because the higher frequency of 5 GHz meant it has <strong>shorter range<\/strong> and <strong>does not penetrate solid objects well.<\/strong><\/p>\n<h3>Beam Me Up Scotty<\/h3>\n<p>To overcome the limitations of using the 5 GHz frequency band, wireless-AC has a feature called <strong>Beamforming<\/strong>. Imagine wireless technology as a wave that spreads outwards, towards the router.<\/p>\n<p>Beamforming focuses on a specific direction instead, and via more than one transmitting antenna, thereby effectively strengthening the signal without any extra power consumption.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/wireless-ac-explained\/beamforming.jpg\" alt=\"Beamforming\" width=\"500\" height=\"253\"><\/figure>\n<h3>MU-MIMO Top Up<\/h3>\n<p>The use of Beamforming then gets more efficient with <strong>Multi User \u2013 Multi Input Multi Output (MU-MIMO)<\/strong>. MIMO isn\u2019t new, but MU-MIMO allows communication with <strong>4 different devices at the same time<\/strong> compared to only one device previously. More devices can connect to a single router, with less interference or conncetion disruptions.<\/p>\n<h2>Where 802.11ac Can Excel<\/h2>\n<p>Our homes are turning wireless, with devices like Smart TV, gaming consoles with wireless controllers, wearable technology and even smart locks for the front door. These devices require wireless connectivity to run its functions. Wireless-AC can help <strong>overcome the number of devices<\/strong> we want connected and <strong>reduce interference<\/strong> for smooth connections between all the wireless devices.<\/p>\n<p>Note that unless you have a Gigabit internet connection, 802.11ac won\u2019t let you surf the Internet on your wireless device much faster. Instead, it excels in <strong>wireless HD video streaming, gaming, syncing of devices, backups<\/strong> and <strong>sharing speed of large files between users on the same network<\/strong>.<\/p>\n<h2>802.11ac Devices In The Market Now<\/h2>\n<p>Apart from Apple\u2019s latest <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.apple.com\/macbook-air\/\">MacBook Air<\/a> and the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.engadget.com\/2012-06-07-asus-g75vw-broadcom-80211ac.html\">upcoming<\/a> refresh of the ASUS <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.cnet.com\/reviews\/asus-g75vw-review\/\">G75VW<\/a>, other 802.11ac devices include the <a href=\"https:\/\/www.hongkiat.com\/blog\/samsung-galaxy-s4-features\/\">feature-filled<\/a> <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.samsung.com\/global\/galaxy\/\">Samsung Galaxy S4<\/a>, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.gsmarena.com\/htc_one-5313.php\">HTC One<\/a>, and the upcoming <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.samsung.com\/in\/smartphones\/all-smartphones\/#specification\">Samsung Galaxy Mega<\/a>.<\/p>\n<p>There are also a few companies like <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.dlink.com\/en\/consumer\">D-Link<\/a>, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.netgear.com\/home\/wifi\/routers\/r6330\/\">Netgear<\/a>, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.linksys.com\/sg\/\">Linksys<\/a>, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.belkin.com\/us\/accessories\/c\/wifi-routers\/\">Belkin<\/a>, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.buffalo-technology.com\/\">Buffalo<\/a> and <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.asus.com\/Networking\/RTAC56U\/#overview\">ASUS<\/a> that have <strong>routers<\/strong> in the market with support for wireless-AC alongside the older wireless-N. Apple\u2019s new <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/support.apple.com\/en-sg\/airport\">AirPort Extreme<\/a> and <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.apple.com\/sg\/airport-time-capsule\/specs\/\">Time Capsule<\/a> have also been updated with wireless-AC support.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.hongkiat.com\/uploads\/wireless-ac-explained\/apple-time-capsule.jpg\" alt=\"apple time capsule\" height=\"389\" width=\"500\"><\/figure>\n<p>Wireless-AC is <strong>backward compatible<\/strong>, which means most of your older devices would still work with a new 802.11ac router. However, in order to <strong>use wireless-AC at its full potential<\/strong>, you\u2019ll need a device (PC, laptop, smartphone, tablet) that can receive the AC specification.<\/p>\n<p>For desktop PC users, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.asus.com\/sg\/Networking-IoT-Servers\/Adapters\/All-series\/PCEAC66\/\">ASUS<\/a> has a PCIE <strong>network adapter for your motherboard.<\/strong> Alternatively, you can get <strong>USB solutions<\/strong> from <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.asus.com\/sg\/Networking-IoT-Servers\/Adapters\/All-series\/USB-AC53-Nano\/\">ASUS<\/a> and <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.netgear.com\/home\/wifi\/routers\/\">Netgear<\/a> to get wireless-AC on your laptop.<\/p>\n<p><strong>Note<\/strong>: Before purchasing any of these devices, you should read reviews of the devices to ensure you won\u2019t run into any complications.<\/p>\n<h2>Wrap Up<\/h2>\n<p>Price-wise, wireless-AC routers are not much more expensive compared to current routers but there are few wireless AC devices in the market. You should know that <strong>802.11ac is not officially finalized<\/strong> yet and the devices currently available in the market are still based on working drafts.<\/p>\n<p>The same thing happened when 802.11n first released. So whatever wireless-AC devices you get now may not work at its full potential until it\u2019s finalized.<\/p>","protected":false},"excerpt":{"rendered":"<p>The latest and greatest technology in WiFi is 802.11ac, which is expected to be significantly faster than the current market leader, 802.11n. However, the inspiration behind this peculiar name remains a mystery. Our aim is to clarify the meaning of 802.11ac, which, in addition to speed, boasts a few new technological breakthroughs. 802.11ac Explained for&hellip;<\/p>\n","protected":false},"author":122,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3396],"tags":[1962,2548],"topic":[4521],"class_list":["entry-content","is-maxi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.8 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>802.11ac Wi-Fi Explained: What It is &amp; Why It&#039;s Cool - Hongkiat<\/title>\n<meta name=\"description\" content=\"The latest and greatest technology in WiFi is 802.11ac, which is expected to be significantly faster than the current market leader, 802.11n. 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