//=====================================================================
public double getRetransmitionRate()
{
if (MACOfAnotherPeer == null)
{
return(-1);
}
try
{
RFpeer tempPeer = (RFpeer)_RFpeers[MACOfAnotherPeer];
short Recounter = tempPeer.RetransmitionCounter;
long counter = tempPeer.TransmitCounter;
if (counter == 0)
{
return(0);
}
double ret = 100 * Recounter / counter;
if (ret > 100)
{
ret = 100;
}
return(ret);
}
catch (Exception)
{
//MessageBox.Show("getRetransmitionRate" + ex.Message);
}
return(-1);
}
//[MethodImpl(MethodImplOptions.Synchronized)]
//=====================================================================
/// <summary>
/// Update RF decie peers in this peer
/// </summary>
public void UpdateRFPeers()
{
if (Medium._objects == null)
{
return;
}
try
{
double dist = 0;
foreach (RFDevice devi in Medium._objects)
{
if (devi.getMACAddress().Equals(this.getMACAddress()))
{
continue;
}
dist = GetSTADist(this.x, this.y, devi.x, devi.y);
if (dist <= Medium.ListenDistance * 2)
{
RFpeer _peer = new RFpeer()
{
Distance = dist,
BSSID = devi.BSSID,
MAC = devi.getMACAddress(),
Freq = devi.Freq,
Stand80211 = devi.Stand80211,
BandWidth = GetBestIntersectionBandwith(devi.BandWithSupport), // devi.BandWidth,
Channel = devi.getOperateChannel(),
RSSI = GetRSSI(devi.x, devi.y),
isPassive = devi.Passive,
};
if (_RFpeers.Contains(_peer.MAC))
{
_RFpeers[_peer.MAC] = _peer;
}
else
{
_RFpeers.Add(_peer.MAC, _peer);
}
}
}
}
catch (Exception ex) { AddToLog("Update RFpeers :" + ex.Message); }
}
//*********************************************************************
/// <summary>
///
/// </summary>
/// <param name="MAC"></param>
/// <returns></returns>
protected short GetTXRate(string MAC)
{
short retVale = 0;
if (!_RFpeers.Contains(MAC))
{
UpdateRFPeers();
}
if (_RFpeers.Contains(MAC))
{
RFpeer _peer = (RFpeer)_RFpeers[MAC];
if (_peer.Freq == Frequency._5200GHz)
{
if (_peer.BandWidth == Bandwidth._20MHz)
{
retVale = getRateOn5_2RSSI20M(_peer.RSSI);
}
else if (_peer.BandWidth == Bandwidth._40Mhz)
{
retVale = getRateOn5_2RSSI40M(_peer.RSSI);
}
}
else if (_peer.Freq == Frequency._2400GHz)
{
if (_peer.BandWidth == Bandwidth._20MHz)
{
retVale = getRateOn2_4RSSI20M(_peer.RSSI);
}
else if (_peer.BandWidth == Bandwidth._40Mhz)
{
retVale = getRateOn2_4RSSI40M(_peer.RSSI);
}
}
//if (_peer.BandWidth == Bandwidth._40Mhz)
// retVale*=2;
}
return(retVale);
}
//=====================================================================
public double GetNoiseOnSameChannel()
{
//short devisesCounter = 0;
//UpdateRFPeers();
int points = 0;
double val = 0;
foreach (DictionaryEntry device in _RFpeers)
{
RFpeer dev = (RFpeer)((DictionaryEntry)device).Value;
if (dev.Channel == getOperateChannel())
{
// formula for wolfram: plot [y= -15*log_2(x),{y,16,-95},{x,60,0}]
// http://www.wolframalpha.com/input/?i=plot+%5By%3D+-15*log_2%28x%29%2C%7By%2C16%2C-95%7D%2C%7Bx%2C60%2C0%7D%5D+
val += Medium.ListenDistance - dev.Distance;
points++;
}
}
return(val / points);
}
//=====================================================================
/// <summary>
/// Independ on RSSI return Noize level
/// </summary>
/// <param name="MAC">Macc address</param>
/// <returns>Return NOIZE level</returns>
protected double GetNoiseRSSI(string MAC)
{
double retVale = 0;
if (!_RFpeers.Contains(MAC))
{
UpdateRFPeers();
}
if (_RFpeers.Contains(MAC))
{
RFpeer _peer = (RFpeer)_RFpeers[MAC];
//TODO :: Need optimize
// formula for wolfram: plot [y=x^2 +150x +(75^2) ,{y,0,100},{x,-60,-100}]
// http://www.wolframalpha.com/input/?i=plot+%5By%3Dx%5E2+%2B150x+%2B%2875%5E2%29+%2C%7By%2C0%2C100%7D%2C%7Bx%2C-60%2C-100%7D%5D+
double NoiseRssi = Math.Pow(_peer.RSSI, 2) + 150 * _peer.RSSI + Math.Pow(75, 2);
if (_peer.RSSI <= -75)
{
if (NoiseRssi > 100)
{
retVale = 100;
}
else
{
retVale = NoiseRssi;
}
}
else
{
retVale = 0;
}
}
guiNoiseRssi = retVale;
return(retVale);
}
//[MethodImpl(MethodImplOptions.Synchronized)]
//=====================================================================
/// <summary>
/// Update RF decie peers in this peer
/// </summary>
public void UpdateRFPeers()
{
if (Medium._objects == null)
return;
try
{
double dist = 0;
foreach (RFDevice devi in Medium._objects)
{
if(devi.getMACAddress().Equals(this.getMACAddress()))
continue;
dist = GetSTADist(this.x, this.y, devi.x, devi.y);
if (dist <= Medium.ListenDistance*2)
{
RFpeer _peer = new RFpeer()
{
Distance = dist,
BSSID = devi.BSSID,
MAC = devi.getMACAddress(),
Freq = devi.Freq,
Stand80211 = devi.Stand80211,
BandWidth = GetBestIntersectionBandwith(devi.BandWithSupport),// devi.BandWidth,
Channel = devi.getOperateChannel(),
RSSI = GetRSSI(devi.x, devi.y),
isPassive = devi.Passive,
};
if (_RFpeers.Contains(_peer.MAC))
_RFpeers[_peer.MAC] = _peer;
else
_RFpeers.Add(_peer.MAC, _peer);
}
}
}
catch (Exception ex) { AddToLog("Update RFpeers :" + ex.Message); }
}
