Different frequencies (2.5 in the US, 2.3 in Asia, 3.3 and 3.5GHz in
other areas)
5bps/Hz vs 2.7bps/Hz on 802.11-stuff
smart antenna systems
on the fly bandwidth and channel changes
channel bandwidths of things like 1.25MHz - 20MHz
hybrid automatic repeat-request (HARQ -
http://en.wikipedia.org/wiki/Hybrid_automatic_repeat-request)
etc.
It's a different animal. It's very expensive though, and I've heard some
pretty outrageous claims from it that I just don't believe.
*Josh Reynolds*
Chief Information Officer
SPITwSPOTS
j...@spitwspots.com | www.spitwspots.com
On 03/27/2014 11:25 AM, Sam wrote:
Today we had a company come to us pushing wimax. Admittedly I've never
used wimax, nor do I know a lot about it. From what I can see looking at
Google images of the technology and how it's deployed, it looks no
different than the PtP and PtMP that we all use with 900 MHz, or 2.4 and
5.x GHz.
Is the only advantage to wimax the presumably clearer and less-used
frequencies upon which they operate? I had (evidently mistakenly)
thought that perhaps wimax was a code word for some sort of mesh, and
that's how it achieved NLOS service. However in looking at the network
layouts on Google, it doesn't look like that at all. Rather, it looks
like that add another AP to get around the obstruction(s), and simply
backhaul it to an intermediary AP/tower to get it back to the PoP.
Thanks
Sam
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