January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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IEEE 802.11ac
IEEE802.11ac is the next generation WLAN and follow-on to the family of 802.11 standards. IEEE802.11ac was approved as a standard in December of 2013 after five years of work. The goal is to deliver multi-station throughput at least 1 GBps and a single link throughput of 500 Mbps. The technology accomplishes this through wider channel bandwidth (160 MHz), more MIMO spatial streams, and extreme density modulation (256-QAM). 802.11ac exists only in the 5 GHz band, yet will coexist with previous standards (IEEE802.11a/n).
Specifics and differences of IEEE802.11ac than IEEE802.11n are:
- 80 MHz channel width minimum with 160 MHz maximum channel width
- Eight MIMO spatial streams:
- Introduced downlink MU-MIMO with up to four downlink ...
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