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IEEE 802.11AC THE FIFTH GENERATION OF WI-FI
Table of Contents TOC \o "1-3" \h \z \u 1. INTRODUCTION PAGEREF _Toc400884340 \h 22. DRIVERS FOR 802.11AC PAGEREF _Toc400884341 \h 43. NEW FEATURES IN 802.11AC PAGEREF _Toc400884342 \h 54. CONCLUSION PAGEREF _Toc400884343 \h 105. REFERENCES PAGEREF _Toc400884344 \h 11
INTRODUCTION
Usually Wi-Fi was a means for users to stay connected at home or in the enterprise to the internet for surf the web, watch video, social media and carry out others related task use internet as way of communication and change information. Today, that trend is rapidly changing whereby Wi-Fi is being used for content consumption such as streaming music, videos and control and connect devices at homes or office. According to (QUALCOMM, 2012 )Demand for video content is driven by easy-to-use video streaming services such as Netflix, YouTube and Vimes and demand for high-definition (HD) video content on set-top-boxes, TVs, laptops, and on their mobile devices such as smart phones and tablets.
HD video content, as well as video content in general, presents a challenge for existing Wi-Fi 802.11n based networks. IEEE 802.11ac is the next evolution of the Wi-Fi standard that promises to deliver multiple HD video streams instantaneously. It can reach maximum throughputs well above a Gigabit per second compare to Wi-Fi 802.11n based networks which is much slower. The 802.11ac specification dictates operation in the 5 GHz band, where there is relatively less interference and more channels are available compared to the 2.4 GHz band. 802.11ac achieves higher performance than 802.11n by using more spatial streams, wider bandwidth, higher order modulation, and enhanced bandwidth management techniques.
The purpose of the 802.11ac amendment is to “improve the Wi-Fi user experience by providing significantly higher throughput for existing application areas, and to enable new market
References: ISCO . (2012) 802.11ac: The Fifth Generation of Wi-Fi Technical White Paper. [Online] Available from: http://www.cisco.com/c/en/us/products/collateral/ wireless /aironet-3600-series/white_paper_c11-713103.html.[Accessed: 5th October 2014]. Ruckus. (2014) 802.11ac:Very High Throughput. [Online] Available from: http://a030f85c1e25003d7609b98377aee968aad08453374eb1df3398.r40.cf2.rackcdn.com /wp/wp-802.11ac.pdf. [Accessed: 6th October 2014]. LitePoint. (2013) IEEE 802.11ac:What Does it Mean for Test?. [Online] Available from: www.litepoint.com/whitepaper/80211ac_Whitepaper.pdf.[Accessed: 6th October 2014]. QUALCOMM . (2012) IEEE802.11ac: The Next Evolution of Wi-FiTM Standards. [Online] Available from: https://www.qualcomm.com/media/documents/files/ieee802-11ac-the-next-evolution-of-wi-fi.pdf.[Accessed: 7th October 2014].