Ndtyjky

Many scientists have published papers documenting how devices connected via WLAN can be tracked by measuring its Signal Strength, Time Of Arrival, Round Trip Time, etc. Any idea how I can access these values in Windows using any .NET API?

Or do you know of software SDKs already available for location tracking?

hello for WIndows 7 this is a good code wich can detect all AP with MAC adress RSSI SSID :

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using NativeWifi;



class Program

{



    static void Main(string args)

    {



        WlanClient client = new WlanClient();

        // Wlan = new WlanClient();

        try

        {

            foreach (WlanClient.WlanInterface wlanIface in client.Interfaces)

            {



                Wlan.WlanBssEntry wlanBssEntries = wlanIface.GetNetworkBssList();



                foreach (Wlan.WlanBssEntry network in wlanBssEntries)

                {

                    int rss = network.rssi;

                    //     MessageBox.Show(rss.ToString());

                    byte macAddr = network.dot11Bssid;



                    string tMac = "";



                    for (int i = 0; i < macAddr.Length; i++)

                    {



                        tMac += macAddr[i].ToString("x2").PadLeft(2, '0').ToUpper();



                    }







                    Console.WriteLine("Found network with SSID {0}.", System.Text.ASCIIEncoding.ASCII.GetString(network.dot11Ssid.SSID).ToString());



                    Console.WriteLine("Signal: {0}%.", network.linkQuality);



                    Console.WriteLine("BSS Type: {0}.", network.dot11BssType);



                    Console.WriteLine("MAC: {0}.", tMac);



                    Console.WriteLine("RSSID:{0}", rss.ToString());





                }

                Console.ReadLine();

            }

        }

        catch (Exception ex)

        {

            MessageBox.Show(ex.Message);

        }



        }

    }  

}

i hope it will be helpful enjoy

The Managed Wifi API will provide signal strength information. Here's a code snippet adapted from a question I previously posed and was answered here:

static void Main(string args)

{

    WlanClient client = new WlanClient();

    foreach ( WlanClient.WlanInterface wlanIface in client.Interfaces )

    {

        Wlan.WlanAvailableNetwork networks = wlanIface.GetAvailableNetworkList( 0 );

        foreach ( Wlan.WlanAvailableNetwork network in networks )

        {

            Console.WriteLine( "Found network with SSID {0} and Siqnal Quality {1}.", GetStringForSSID(network.dot11Ssid), network.wlanSignalQuality);

        }

    }

}



static string GetStringForSSID(Wlan.Dot11Ssid ssid)

{

    return Encoding.ASCII.GetString(ssid.SSID, 0, (int) ssid.SSIDLength);

}

Windows itself provides a Location API now.