superg168 No Further a Mystery
superg168 No Further a Mystery
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Notice, even though, that the majority of the decline emanates from one particular glitch while in the stream that happens shortly once the throughput script begins jogging.
You probably would never see interference involving two 11g WLANs working video streams at any length.
Atheros has reported that Broadcom is harping on one thing typical to all 802.11g items and that interference may also be produced by “usual” 802.11g WLANs working in near proximity. So I initial wanted to take a look at to find out if this were being real.
Super-G doesn’t check to view if 11b or 11g criteria-compliant equipment are in array right before working with its non-conventional tactics
Considering the fact that Broadcom made use of a 2Mbps MPEG stream as portion of their Comdex demonstration, I also needed to include streaming as Component of my tests. But I needed a measure more quantitative than attempting to describe the diploma of jerkiness in a streaming video clip of The Matrix.
Atheros declared its Tremendous-G throughput enhancement technological know-how back in April of this yr, nevertheless it’s taken right until now for products to strike the cabinets.
This test is meant to emulate the Broadcom Comdex demo (other than that it works by using two 802.11g WLANs) and identify the extent of interference over a video clip stream from a close-by WLAN that’s working as fast as it may possibly go.
Suggestion: As I was putting jointly the testbed, I discovered Win98SE being restricting the Tremendous-G throughput results. After i switched the exact same Laptop from jogging 98SE to WinXP Residence, Tremendous-G common throughput (with all speed enhancements managing) jumped from 29Mbps to all-around 37Mbps.
Because the bit amount is restricted to 2Mbps, the spectrum produced isn’t really extensive, which must Restrict the channel overlap, and so the amount of efficiency degradation.
The draw back – as Broadcom wants everyone to grasp – is usually that Channel Bonding cuts a wider swath from the two.4GHz spectrum, allegedly interfering with all eleven channels during the 2.
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And when it’s correct that two 11g WLANs can interfere with one another as Atheros contends, it’s only when equally are functioning entire-tilt, and perhaps then, the interference is absent by the point the WLANs are divided by 30 toes – perfectly short of the a hundred feet that Atheros has long been quoted as saying would be the 11g interference zone.
As I described in my Comdex protection, the shorter story is usually that Broadcom is asserting that Atheros’ Tremendous-G centered merchandise will superg168 interfere with neighboring 802.11b and g networks, severely restricting their speed and, sometimes, shutting them down entirely.
The results demonstrate 0.041% of information was misplaced from the Broadcom-based stream and none inside the Atheros-dependent stream. This isn’t definitely quite important, In particular since the largest disturbance is owing the glitch a result of the Broadcom driver.