802.11 wireless development through the ages

80-160MHz spectrum use for one device? That's a ton of spectrum. How is that going to work? Far less channels to choose from -> far more noise/interference. Hardly an improvement in technology if they're just using more frequency to accommodate the increased bandwidth. More like a regression because it's just creating more radiation/pollution
 
LOL. facepalms all around :p

.11ac is at a very high frequency so:

1) it won't be used for any range longer than your living room. At most for transmissions across the road.
2) the higher your centre frequency, the higher your bandwidth will be when taken as a fixed percentage of centre frequency. (read up on Q factors).
 
1) it won't be used for any range longer than your living room. At most for transmissions across the road.

It's the same frequency band used by 802.11a and 802.11n right now. I don't have much experience with 802.11a, but n is used by all the WUGS, and that's not just "across the road". I have set up a 2 km directional transmitter at a friend's place before.
 
It's the same frequency band used by 802.11a and 802.11n right now. I don't have much experience with 802.11a, but n is used by all the WUGS, and that's not just "across the road". I have set up a 2 km directional transmitter at a friend's place before.

Its the same spectrum yes, but using more channel width. So in the end you have less channels to use.

As I said, using n technology in the west wug, we ran out of channels. So ac would not work that well
 
It's the same frequency band used by 802.11a and 802.11n right now. I don't have much experience with 802.11a, but n is used by all the WUGS, and that's not just "across the road". I have set up a 2 km directional transmitter at a friend's place before.

Yes but the higher bandwidth means that there will be less W/Hz for each sub-channel. Since the sum (integral) of the total PSD of the transmitted signal has to add up to at most 30 dBm (ICASA rules, EIRP) the average SNR for all the sub-channels will be less 15 dB (or 8 for 80 MHz) for all of them compared to 802.11n since you have 2-4 times the bandwidth in which to transmit the same power. I wouldn't be surprised if ICASA limits it to an even lower power of say 10 dBm.
 
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