Typically this is done using the received signal strength from the WiFi radio and can be very accurate. Accuracy can be further enhanced by using a site survey. While typical existing implementations rely on client driver changes to obtain signal strength, there are infrastructure solutions that extract signal strength from the AP side and would support browser based techniques. Unfortunately AP side location techniques aren't universally supported by all WiFi Access Point manufacturers.
Packet send and receive times or WiFi bandwidth settings are poorly correlated with received RF signal strength and location. -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of atreau2k Sent: Thursday, January 24, 2008 1:30 AM To: iPhoneWebDev Subject: Wifi Signal Strength Detection Anyone have an idea about how to mathematically detect the signal strength to determine approximate distance to the nearest network? Senario... I walk into a large facility with numerous routers all serving me Internet. I wish to determine my approximate distance to each router. Then using math and most likely packet send and receive times, I want to guesstimate the distance to router 1, router 2 etc.. Very similar to cpt.. cell phone triangulation. oh.. doing this with a web browser rather than an app would be just awesome. so.. any ideas? thanks in advance... --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "iPhoneWebDev" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/iphonewebdev?hl=en -~----------~----~----~----~------~----~------~--~---
