/technologies/wireless/b/blog/posts/next-gen-wlan-what-you-need-to-know-about-802-11ac-and-why-2-5-gbps-is-critically-importantThis article was published first on embedded beat (Freescale blogs) by Eric Dudley, product Marketer at Freeescale Wireless data access is everywhere and quickly becoming a staple service in our connected lives, as 3/4G, LTE and WLAN are o...en-USTelligent Community 12https://community.element14.com/technologies/wireless/b/blog/posts/next-gen-wlan-what-you-need-to-know-about-802-11ac-and-why-2-5-gbps-is-critically-importantWed, 03 Dec 2014 13:50:37 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:452c905c-6019-454a-bcaa-49755362097cgervasi0<p>I&#39;ve been interested in <a class="jive-link-external-small" href="http://www.element14.com/community/groups/wireless/blog/2013/01/14/80211ac-gigabit-wi-fi-throughput" target="_blank">high-throughput Wi-Fi</a> for a long time.</p><p>&nbsp;</p><p>A few weeks ago I tested throughput on two Gateworks computer boards using 802.11ac cards.&nbsp; I got three-stream 40MHz channels working.&nbsp; The 40MHz gives you an easy doubling of throughput at the price of 3dB of link budget.&nbsp; The multi-stream is trickier.&nbsp; You have to have a decent channel function with some short and uncorrelated delay spreads between the antennas.&nbsp; The ac standard supports 80 MHz, but my radio cards didn&#39;t support it.&nbsp; In my Gateworks test I got several hundred Mbps, bridging to computers.</p><p>&nbsp;</p><p>I would love to test a computer board with the QorIQ processor with ac cards. </p><img src="https://community.element14.com/aggbug?PostID=19341&AppID=5&AppType=Weblog&ContentType=0" width="1" height="1">