The superg168 Diaries
The superg168 Diaries
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A close-by Super-G WLAN running a 2Mbps video clip stream will probably not result in considerable interference to an 11g WLAN that’s also streaming a video clip.
It’s not likely you’d be noticeably bothered by a neighbor’s heavily utilised 802.11g WLAN when watching a wirelessly streamed video by yourself.
Atheros has stated that Broadcom is harping on a little something prevalent to all 802.11g products and that interference will also be created by “normal” 802.11g WLANs functioning in near proximity. So I very first planned to exam to check out if this were correct.
Super-G doesn’t Verify to determine if 11b or 11g expectations-compliant equipment are in selection prior to employing its non-regular strategies
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Incidentally, the drop in Tremendous-G throughput throughout the fifty five second mark will not be resulting from interaction involving the Tremendous-G and 11g WLANs, but instead to Element of dynamic Tremendous-G’s algorithms.
This exam is meant to emulate the Broadcom Comdex demo (besides that it takes advantage of two 802.11g WLANs) and ascertain the level of interference with a video stream from a close-by WLAN that’s working as fast as it might go.
Now if all the energy of the transmitted signal actually had been contained inside a 20 (or 22MHz) band, the definition of “non-overlapping” may be less complicated. But actuality is considerably much more complicated.
Broadcom alleges that Super-G’s channel bonding function can considerably degrade the efficiency of neighboring two.4GHz WLANs that don’t use Tremendous-G. Broadcom’s Comdex demos focused on showing two Super-G behaviors that Broadcom states are the basis of the challenge:
Dynamic manner within an AP allows 802.11b, 11g, and Super-G STAs all associate and transfer information and switches in channel bonding only when bandwidth calls for involve it.
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And though it’s genuine that two 11g WLANs can interfere with each other as Atheros contends, it’s only when each are functioning whole-tilt, and in some cases then, the interference is long gone by the point the WLANs are separated by 30 feet – effectively short of the a hundred toes that Atheros has long superg168 been quoted as expressing will be the 11g interference zone.
The yellow shaded location represents the facility from channel 2’s signal that overlaps into channel one’s principal lobe (the largest “hump” and likewise the frequency band which contains almost all of the sign’s ability).
The outcomes clearly show 0.041% of knowledge was shed while in the Broadcom-primarily based stream and none during the Atheros-primarily based stream. This isn’t truly very considerable, In particular since the largest disturbance is due the glitch caused by the Broadcom driver.