Interop: Don’t sweat 802.11ac Wi-Fi – because 802.11ad will knock your socks off article tells that industry experts at Interop NY already look beyond the coming advent of 802.11ac. While the Wi-Fi world is rightly abuzz over the rapidly approaching large-scale deployment of the new 802.11ac standard, experts at an Interop NY panel said today that the 802.11ad standard is likely to be even more transformative.
The reasons is that 802.11ac is a development of the current 802.11n standard, producing improved performance on the same 5GHz frequency bands. Some 802.11ac devices have already been deployed and experts expect that will become commonplace by early 2013. Based on how quickly other recent 802.11 standard have been taken into wide use I see it believable that that 802.11ac can become commonly used during next year.
802.11ad adds 60GHz connectivity to the previously used 2.4GHz and 5GHz frequencies, potentially providing multi-gigabit connection speeds. New higher speed communications option can broadening the number of applications for which wireless can be used. Some of those uses could include wireless docking and uncompressed HD video streaming. You can also see 802.11ad as an island of super-high data rate present in a sea of gigabit Wi-Fi. The idea is that the localized but high-bandwidth 60GHz network can be used for specific, highly demanding tasks, keeping the standard 5GHz frequency free for normal use.
Why to add that new 60GHz frequency band you might ask? There are many good reasons for that. The 60GHz frequency band has been of interest for wireless communications developers for quite bit of time (I remember some people talking on it at Nokia Research Center at 1990′s). There are some unique characteristics about the 60GHz band that really help. First there is a lot of free bandwidth. 60 GHz is also highly directional (in good and bad).
I mentioned 60GHz communications as promising technology in the beginning of 2012 at Computer technologies for 2012 blog posting as having potential for data centers and WiGig. 60 GHz WiGig (Draft 802.11ad) Chipset has already been demonstrated at CES. Devices using the 60GHz standard could begin to appear in 2014 and become more prominent in 2015.
4 Comments
Tomi Engdahl says:
Is a Wireless Data Center Possible?
http://slashdot.org/topic/datacenter/is-a-wireless-data-center-possible/
A team from Cornell University and Microsoft concludes that a wireless data center could replace one with “traditional” links.
A team of researchers from Microsoft and Cornell University has concluded that, in some cases, a totally wireless data center makes logistical sense.
In a new paper, a team of researchers from Cornell and Microsoft concluded that a data-center operator could replace hundreds of feet of cable with 60-GHz wireless connections—assuming that the servers themselves are redesigned in cylindrical racks, shaped like prisms, with blade servers addressing both intra- and inter-rack connections.
The so-called “Cayley” data centers, so named because of the network connectivity subgraphs are modeled using Cayley graphs, could be cheaper than traditional wired data centers if the cost of a 60-GHz transceiver drops under $90 apiece, and would likely consume about one-tenth to one-twelfth the power of a wired data center.
There’s just one problem, however: Cayley datacenters are expected to show significantly better latency on average than conventional data centers and so-called “fat tree” networks, except under peak load.
“Conventional datacenters, based on wired networks, entail high wiring costs, suffer from performance bottlenecks, and have low resilience to network failures,” the paper’s authors, Ji-Yong Shin, Emin Gün Sirer, and Hakim Weatherspoon of Cornell, wrote. The co-author was Darko Kirovski, of Microsoft Research.
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