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

WPA in action - Broadcom Performance

The good news is that using WPA doesn't have to end up costing you throughput. But, at least in the early going, all WPA implementations aren't created equal. Since Broadcom seems to be leading the pack slightly in WPA releases, I'll start with a few examples of products based on their chipsets.

NOTE! NOTES:

- As with draft-802.11g when it first appeared, WPA is in its early stages. Even though WPA is a released spec., manufacturers are still on the learning curve and tuning their implementations. Your mileage may vary when you try your own experiments with later drivers.

- All testing was done under close-range conditions, with client and AP about 5 feet apart and data flow from client to AP. All clients were tested in a Dell Inspiron 4100 notebook running WinXP Home SP1 with WPA patch.

Since Belkin was first to have both client and AP that are 11g released-spec and WPA complaint, my initial testing focused on those products. Figure 10 shows a throughput comparison for a Belkin F5D7010 11g Client and Belkin F5D7130 11g AP test pair with the following test conditions:

  • No security features enabled
  • 128 bit WEP enabled
  • WPA-PSK TKIP
  • WPA-PSK AES

Belkin F5D7010 11g Client and Belkin F5D7130 11g AP - Condition 1 Throughput vs. Security modes

Figure 10: Belkin F5D7010 11g Client and Belkin F5D7130 11g AP
Condition 1 Throughput vs. Security modes
(click on image for a larger view)

The results are a little tough to see using the plots due to the periodic change in throughput that seems to be a part of at least these Belkin released-spec 11g products. But the numbers in the screen shot reveal that the only throughput hit is approximately 15% in the WPA-PSK TKIP mode. Guess now we know why Broadcom chose to add the optional support for AES!

To see if there was a difference in Broadcom client implementations, I tested a Linksys WPC54G with the first driver that Linksys released that supported WPA, but not 11g spec compliance.

Linksys WPC54G 11g Client and Belkin F5D7130 11g AP

Figure 11: Linksys WPC54G 11g Client and Belkin F5D7130 11g AP
Condition 1 Throughput vs. Security modes
(click on image for a larger view)

Figure 11 shows more consistent throughput performance in all modes, but still has about a 15% throughput decrease in WPA-PSK / TKIP mode.

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

Hi, Brand new RT-AC86U to upgrade from RT-AC66U. I put the most recent Merlin firmware on it (not Beta). I connect directly to the ONT (no Centurylink...
I just got a new Asus router and I installed Merlin and Diversion and so far it's looking amazing, big props to the developers.Anyway, stock Asus only...
Hi,I'm about to setup a Xioami button that upon click should enable disable a VPN Client on the router settings. I use an IPTV server that at times ge...
Hi Guys,I have problem with my rt-ac86u it's bricked during update. I tried use tools to recover firmware for mac and windows but still nothing.Ok so ...
I'm still currently on AsusWRT Merlin 384.13 and trying to do a firmware upgrade to 384.19. I've downloaded the .trx file and tried updating the firmw...

Don't Miss These

  • 1
  • 2
  • 3