Like every other website on the planet, SmallNetBuilder uses cookies. Our cookies track login status, but we only allow admins to log in anyway, so those don't apply to you. Any other cookies you pick up during your visit come from advertisers, which we don't control.
If you continue to use the site, you agree to tolerate our use of cookies. Thank you!

Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

Wireless Features

11g vs. 11g - Maximum Throughput

My second set of 11g-only tests used the same products and same distances. But this time, I used the Chariot Throughput.scr to stimulate both WLANs. This script simply blasts a file between each test pair. I used a 200,000 Byte file size, TCP protocol and no delay between file sends.

Here's the complete list of conditions:

  • Atheros-based test pair set to "normal" 802.11g, channel 6
  • Broadcom-based 11g test pair on channel 11
  • Throughput.scr running on both WLANs. TCP protocol, 200,000 Byte file size, no delay between sends, unlimited data rate
  • 10 feet maximum between WLANs (both APs and STAs)
  • Broadcom-based WLAN started first, followed by Atheros-based WLAN 10 seconds later.
  • Data sent from STA to AP

Because this test uses all the bandwidth that each WLAN has to give, the spectrum generated by each WLAN will be maximum width, resulting in a worst-case channel overlap and worst-case interference scenario.

Figure 13 clearly shows that both WLANs suffer from their neighbor running at full-blast . Figures 14 and 15, though, show the interference gone with the WLANs separated by 30 and 50 feet, respectively.

Conclusion for this round:
Two 11g WLANs running at full speed (long downloads for example) can interfere at close range.

Atheros 11g vs Broadcom 11g throughput - 10ft

Figure 13: Atheros 11g vs Broadcom 11g throughput - 10ft
(click on the image for a full-sized view)

Atheros 11g vs Broadcom 11g throughput - 30ft

Figure 14: Atheros 11g vs Broadcom 11g throughput - 30ft
(click on the image for a full-sized view)

Atheros 11g vs Broadcom 11g throughput - 50ft

Figure 15: Atheros 11g vs Broadcom 11g throughput - 50ft
(click on the image for a full-sized view)

More Wireless

Wi-Fi System Tools
Check out our Wi-Fi System Charts, Ranker and Finder!

Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

Had problems with a recent ASUS firmware upgrade that appeared to be corrupted. ASUS tech support couldn't help. Did some research and downloaded/inst...
So I'm a bit exasperated, and hope there is help here to be found! I've searched as best I can and tried all the suggestions google provided, but to n...
I have the RT-AX88U. I've set up my WiFi to use channel 100 for the 5 GHz network.However, it's actually using channel 149, which is the single worst ...
Hi,I have an Asus RT AC5300 running Merlin firmware v384.7 and have struggled with wifi stability for absolutely ages. I've tried different channels a...
Overview The Broadcom wl driver and the open-source brcmfmac driver for Broadcom WiFi chipsets contain multiple vulnerabilities. The Broadcom wl dr...

Don't Miss These

  • 1
  • 2
  • 3