11g results - Indoor

02:57 - Monday 15 November 2004 by THG Reporting Team
Source: Tom's Hardware – Keywords: do, extended

11g results - Indoor

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Now that you know the drill, you can puruse the 11g results plots pretty much on your own, and I'll try to keep commentary to a minimum. This time you'll see only True MIMO and Super G / XR results, since the ParkerVision D2D router and client operate at 11b speeds only.

Figure 25: 11g Indoor Throughput vs. Location - AP to STA
(click on the image for a larger view)

The results for the True MIMO-based products are amazingly good, with average uplink and downlink speeds at all test locations remaining above 30Mbps and closer to 40Mbps in most locations. The Super G / XR gear doesn't do quite as well, but still turns in results better than any other 11g products I've tested, which usually have problems with my downstairs test location 3.

Figure 26: 11g Indoor Throughput vs. Location - STA to AP
(click on the image for a larger view)

Figures 27 and 28 provide some insight into Super G / XR's lower throughput. The uplink comparison in Figure 27 looks like True MIMO is really whuppin' Super G / XR's butt. But Figure 28 shows the throughput jump characteristic of Super G's switch to channel bonding, oops, make that Dynamic Turbo mode. I ran some long test runs and found that the shift back and forth occurs approximately every 2 minutes.

So my 1 minute test runs sometimes caught it kicked in, sometimes not, and other times in both modes. At any rate, the constant shifting means that Super G has a built-in throughput disadvantage vs. True MIMO, which doesn't have such a mechanism.

At any rate, both technologies produce reasonably stable throughput under indoor close-range conditions.

Figure 27: 11g Indoor Throughput - Location 1, AP to STA
(click on the image for a larger view)

Figure 28: 11g Indoor Throughput - Location 1, STA to AP
(click on the image for a larger view)

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