My last set of 11g-only tests mixes the two scenarios by running the streaming script on the Broadcom-based WLAN and the throughput script on the Atheros-based.

The details:

This test is intended to emulate the Broadcom Comdex demo (except that it uses two 802.11g WLANs) and determine the level of interference on a video stream from a nearby WLAN that's running as fast as it can go.

The throughput plot for the stream in Figure 16 is significantly more spiky than Figure 9 and the Lost Data plot confirms a higher Data Loss of 0.107%, vs. the 0.041% lost in the stream vs. stream test.

Note, though, that most of the loss comes from one glitch in the stream that occurs shortly after the throughput script starts running.

I didn't run these tests at 30 and 50 feet, because from my previous testing, I knew the interference would be essentially gone for both tests.

Conclusion for round 3:
It's unlikely you'd be significantly bothered by a neighbor's heavily used 802.11g WLAN while watching a wirelessly streamed video on your own.

With the 11g vs. 11g testing out of the way, I moved on to the main event - Super-G vs. Broadcom 11g!

Figure 16: Throughput for Broadcom 11g 2Mbps stream vs Atheros 11g throughput - 10ft
(click on the image for a full-sized view)

Figure 17: Lost data for Broadcom 11g 2Mbps stream vs Atheros 11g throughput - 10ft
(click on the image for a full-sized view)