Investigate using WifiRttManager

[mjaakko]

WifiRttManager allows estimating the distance to an access point in millimeters. This would increase the data quality, because AP locations could be determined more accurately compared to using signal strength for estimating the distance

Investigate how this could be integrated to NeoStumbler. Things to consider:

• data accuracy (especially when the AP and/or the client is moving)
• ranging latency

[joelkoen]

If you wanted to parse raw information elements you could start using all devices (regardless of whether they have RTT support or not) to start collecting whether APs have support for this technology, before going and implementing it in detail. I've recently got an RTT capable phone, and I've only seen one AP that supports this.

App to check for RTT capable APs

[mjaakko]

App to check for RTT capable APs

I've been testing with this app every now and then to find RTT capable APs and so far I haven't seen any. For other APs, the estimated distance seems to be more or less useless