superg168 - An Overview
superg168 - An Overview
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A nearby Super-G WLAN managing a 2Mbps video stream will most likely not trigger substantial interference to an 11g WLAN that’s also streaming a online video.
It appears that although a dynamic Super-G AP doesn’t detect “ordinary” 11g or 11b consumers in array, it'll drop back again to ordinary 11g over a periodic foundation.
Atheros has explained that Broadcom is harping on one thing common to all 802.11g merchandise Which interference will even be generated by “regular” 802.11g WLANs functioning in shut proximity. So I initial desired to examination to check out if this were true.
Notice: The following spectrum diagrams are dependant on Determine one and so are not performed to specific scale. Any inaccuracies aren't intentional!
Because Broadcom utilized a 2Mbps MPEG stream as part of their Comdex demonstration, I also desired to incorporate streaming as A part of my screening. But I preferred a evaluate more quantitative than hoping to explain the diploma of jerkiness inside a streaming video clip of The Matrix.
Broadcom’s shot in Determine seven, even though, demonstrates an entire-energy Tremendous-G signal overlapping into drawn-in markings for channels 1 and 11 so you’re certain to see which the Super-G signal is basically at total toughness when it first overlaps into the two “non-overlapping” channels.
In it, I’ll show that investigating just Broadcom-based 11g vs. Atheros equipment doesn’t notify the entire Super-G story And that i’ll also take a look at the connection among Super-G and enhanced range. And, not surprisingly, I’ll have my own two cents to lead to this complete mess.
Now if all of the energy of your transmitted sign in fact were contained in just a 20 (or 22MHz) band, the definition of “non-overlapping” may be more simple. But reality is considerably additional intricate.
Chariot doesn’t include things like MPEG streams among its exam scripts. So I had for making do using the NetMtgv.scr script, which emulates a NetMeeting two.one Online video stream. I used UDP given that the protocol and set the stream amount to two.048Mbps.
Dynamic manner within an AP lets 802.11b, 11g, and Super-G STAs all associate and transfer info and switches in channel bonding only when bandwidth requires involve it.
Luckily, Chariot consists of the ability to superg168 simulate video clip streams, and calculates the Dropped Details inside of a stream. Due to buffering and error Restoration mechanisms created into streaming protocols, it’s hard to straight correlate a Missing Knowledge range on the range and severity of glitches in a very streaming online video.
Atheros’ Channel Bonding engineering isn’t new, because it’s been used for a several years now in Atheros’ 802.11a “Turbo” function. NETGEAR’s 108Mbps Technologies overview paper clarifies that Channel Bonding is effective by using two radio channels in a means that they appear as just one, increased-velocity channel to both the transmitter and receiver.
A Super-G WLAN operating at complete pace will significantly interfere by having an 11g WLAN jogging streaming video clip even at 30 toes. Nevertheless the interference is essentially gone at fifty feet.
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