{"id":704,"date":"2018-02-07T11:14:48","date_gmt":"2018-02-07T10:14:48","guid":{"rendered":"http:\/\/www.quisted.net\/?p=704"},"modified":"2018-02-07T11:14:48","modified_gmt":"2018-02-07T10:14:48","slug":"wireless-design-principles","status":"publish","type":"post","link":"https:\/\/www.quisted.net\/index.php\/2018\/02\/07\/wireless-design-principles\/","title":{"rendered":"Wireless Design Principles"},"content":{"rendered":"<p><a href=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/wireless.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-705 alignleft\" src=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/wireless.png\" alt=\"\" width=\"129\" height=\"129\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/wireless.png 129w, https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/wireless-100x100.png 100w\" sizes=\"auto, (max-width: 129px) 100vw, 129px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Wireless Signal Mesured in <strong>dBm<\/strong> ( Power referenced against one Milliwatt )<\/li>\n<li>Range is roughly <strong>-30dBm<\/strong> to <strong>-90dBm<\/strong>\n<ul>\n<li><span style=\"color: #3366ff;\">-30dBm = Max Achievable ( not desired ).<\/span><\/li>\n<li><span style=\"color: #3366ff;\">-67dBm = Mininum for real-time Apps.<\/span><\/li>\n<li><span style=\"color: #3366ff;\">-80dBm = Minimum for communication.<\/span><\/li>\n<\/ul>\n<\/li>\n<li>Noise is always a challenge<\/li>\n<li>Signal to Noise Ratio ( <span style=\"color: #ff0000;\"><strong>SNR<\/strong><\/span> ) = ( <span style=\"color: #339966;\"><strong>Signal<\/strong><\/span> &#8211; <span style=\"color: #993366;\"><strong>Noise<\/strong><\/span> ) = <span style=\"color: #ff0000;\"><strong>Value<\/strong><\/span>\n<ul>\n<li>Mininum <strong>SNR<\/strong> of <strong>25 <\/strong>is needed for real-time apps.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/7ea9feb2-d261-4a71-b24f-f01c9fc31d0b.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-707 size-full\" src=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/7ea9feb2-d261-4a71-b24f-f01c9fc31d0b.png\" alt=\"\" width=\"492\" height=\"297\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/7ea9feb2-d261-4a71-b24f-f01c9fc31d0b.png 492w, https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/7ea9feb2-d261-4a71-b24f-f01c9fc31d0b-300x181.png 300w\" sizes=\"auto, (max-width: 492px) 100vw, 492px\" \/><\/a><\/p>\n<p><!--more--><\/p>\n<p><a href=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/power-density-chart.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-706 size-full\" src=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/power-density-chart.png\" alt=\"\" width=\"473\" height=\"369\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/power-density-chart.png 473w, https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/power-density-chart-300x234.png 300w\" sizes=\"auto, (max-width: 473px) 100vw, 473px\" \/><\/a><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 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\" style=\"cursor:inherit\">Table of Contents<\/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\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" 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><\/span><\/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-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/02\/07\/wireless-design-principles\/#Wireless_Channel_Selection_24Ghz_and_5Ghz\" >Wireless Channel Selection: 2.4Ghz and 5Ghz<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/02\/07\/wireless-design-principles\/#Site_Survey_tips\" >Site Survey tips:<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Wireless_Channel_Selection_24Ghz_and_5Ghz\"><\/span><span style=\"color: #800080;\">Wireless Channel Selection: 2.4Ghz and 5Ghz<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>15% &#8211; 20% overlap<\/strong> required for seamless roaming.<\/li>\n<li><strong>-67dBm<\/strong> at cell edges for real-time traffic.<\/li>\n<li>Multi-floor should be a<strong> 3D design.<\/strong><\/li>\n<li><strong>2.4Ghz<\/strong> means fewer clean channels (1 &#8211; 11).<\/li>\n<li><strong>5Ghz<\/strong> means less range.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Site_Survey_tips\"><\/span><span style=\"color: #800080;\">Site Survey tips:<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Identify the &#8220;Customer Style&#8221; you&#8217;re dealing with.<\/li>\n<li>Determine coverage area and key locations ( Good and bad ).<\/li>\n<li>Do a &#8220;floorplan-based WAP map&#8221;- Preliminary design.<\/li>\n<li>Install Waps.<\/li>\n<li>Do a &#8220;Boots on the ground&#8221; site survey, floorplan in-hand.<\/li>\n<li>Make adjustments ( Move WAPs, add Maps) to achieve data rates.<\/li>\n<li>Document everything you&#8217;ve done.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp; &nbsp; Wireless Signal Mesured in dBm ( Power referenced against one Milliwatt ) Range is roughly -30dBm to -90dBm -30dBm = Max Achievable ( not desired ). -67dBm = Mininum for real-time Apps. -80dBm = Minimum for communication. Noise is always a challenge Signal to Noise Ratio ( SNR ) = ( Signal [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[2,5],"tags":[33,106],"class_list":["post-704","post","type-post","status-publish","format-standard","hentry","category-arc","category-designprinciples","tag-dbm","tag-wireless"],"_links":{"self":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/comments?post=704"}],"version-history":[{"count":0,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/704\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/media?parent=704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/categories?post=704"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/tags?post=704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}