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added output power indicator max value + remade signal strength calculation per distance

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This commit is contained in:
fros4943 2008-03-17 09:49:44 +00:00
parent 660bc5e991
commit 7cf49fb57a
1 changed files with 23 additions and 22 deletions
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45
tools/cooja/java/se/sics/cooja/radiomediums/UDGM.java
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@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* $Id: UDGM.java,v 1.14 2008/02/23 10:10:42 fros4943 Exp $ * $Id: UDGM.java,v 1.15 2008/03/17 09:49:44 fros4943 Exp $
*/ */
package se.sics.cooja.radiomediums; package se.sics.cooja.radiomediums;
@ -60,9 +60,8 @@ import se.sics.cooja.plugins.Visualizer2D;
* The radio output power indicator (0-100) is used in a very simple way; the * The radio output power indicator (0-100) is used in a very simple way; the
* total transmission (and interfering) range is multiplied with [power_ind]%. * total transmission (and interfering) range is multiplied with [power_ind]%.
* *
* @see #SS_OK_BEST * @see #SS_STRONG
* @see #SS_OK_WORST * @see #SS_WEAK
* @see #SS_NOISE
* @see #SS_NOTHING * @see #SS_NOTHING
* *
* @see VisUDGM * @see VisUDGM
@ -74,13 +73,13 @@ public class UDGM extends AbstractRadioMedium {
private static RadioMedium myRadioMedium; private static RadioMedium myRadioMedium;
public static final double SS_NOTHING = -200; /* Signal strengths in dBm.
* Approx. values measured on TmoteSky */
public static final double SS_NOTHING = -100;
public static final double SS_NOISE = -60; public static final double SS_STRONG = -10;
public static final double SS_OK_BEST = 0; public static final double SS_WEAK = -95;
public static final double SS_OK_WORST = -30;
private static double SUCCESS_RATIO_TX = 1.0; private static double SUCCESS_RATIO_TX = 1.0;
@ -358,12 +357,11 @@ public class UDGM extends AbstractRadioMedium {
// Fetch current output power indicator (scale with as percent) // Fetch current output power indicator (scale with as percent)
if (selectedMote.getInterfaces().getRadio() != null) { if (selectedMote.getInterfaces().getRadio() != null) {
Radio selectedRadio = selectedMote.getInterfaces().getRadio();
double moteInterferenceRange = INTERFERENCE_RANGE double moteInterferenceRange = INTERFERENCE_RANGE
* (0.01 * selectedMote.getInterfaces().getRadio() * (selectedRadio.getCurrentOutputPowerIndicator() / selectedRadio.getOutputPowerIndicatorMax());
.getCurrentOutputPowerIndicator());
double moteTransmissionRange = TRANSMITTING_RANGE double moteTransmissionRange = TRANSMITTING_RANGE
* (0.01 * selectedMote.getInterfaces().getRadio() * (selectedRadio.getCurrentOutputPowerIndicator() / selectedRadio.getOutputPowerIndicatorMax());
.getCurrentOutputPowerIndicator());
Point translatedZero = transformPositionToPixel(0.0, 0.0, 0.0); Point translatedZero = transformPositionToPixel(0.0, 0.0, 0.0);
Point translatedInterference = transformPositionToPixel( Point translatedInterference = transformPositionToPixel(
@ -441,9 +439,9 @@ public class UDGM extends AbstractRadioMedium {
// Fetch current output power indicator (scale with as percent) // Fetch current output power indicator (scale with as percent)
double moteTransmissionRange = TRANSMITTING_RANGE double moteTransmissionRange = TRANSMITTING_RANGE
* (0.01 * sendingRadio.getCurrentOutputPowerIndicator()); * (sendingRadio.getCurrentOutputPowerIndicator() / sendingRadio.getOutputPowerIndicatorMax());
double moteInterferenceRange = INTERFERENCE_RANGE double moteInterferenceRange = INTERFERENCE_RANGE
* (0.01 * sendingRadio.getCurrentOutputPowerIndicator()); * (sendingRadio.getCurrentOutputPowerIndicator() / sendingRadio.getOutputPowerIndicatorMax());
/* Fail transmission randomly (affects all receiving nodes) */ /* Fail transmission randomly (affects all receiving nodes) */
if (SUCCESS_RATIO_TX < 1.0 && random.nextDouble() > SUCCESS_RATIO_TX) { if (SUCCESS_RATIO_TX < 1.0 && random.nextDouble() > SUCCESS_RATIO_TX) {
@ -524,23 +522,26 @@ public class UDGM extends AbstractRadioMedium {
// Set signal strength on all OK transmissions // Set signal strength on all OK transmissions
for (RadioConnection conn : getActiveConnections()) { for (RadioConnection conn : getActiveConnections()) {
conn.getSource().setCurrentSignalStrength(SS_OK_BEST); conn.getSource().setCurrentSignalStrength(SS_STRONG);
for (Radio dstRadio : conn.getDestinations()) { for (Radio dstRadio : conn.getDestinations()) {
double dist = conn.getSource().getPosition().getDistanceTo(dstRadio.getPosition()); double dist = conn.getSource().getPosition().getDistanceTo(dstRadio.getPosition());
double distFactor = dist/TRANSMITTING_RANGE; double distFactor = dist/TRANSMITTING_RANGE;
distFactor = distFactor*distFactor; double signalStrength = SS_STRONG + distFactor*(SS_WEAK - SS_STRONG);
double signalStrength = SS_OK_BEST + distFactor*(SS_OK_WORST - SS_OK_BEST);
dstRadio.setCurrentSignalStrength(signalStrength); dstRadio.setCurrentSignalStrength(signalStrength);
} }
} }
// Set signal strength on all interferences // Set signal strength on all interferences
for (RadioConnection conn : getActiveConnections()) { for (RadioConnection conn : getActiveConnections()) {
for (Radio dstRadio : conn.getInterfered()) { for (Radio intfRadio : conn.getInterfered()) {
dstRadio.setCurrentSignalStrength(SS_NOISE); double dist = conn.getSource().getPosition().getDistanceTo(intfRadio.getPosition());
if (!dstRadio.isInterfered()) { double distFactor = dist/TRANSMITTING_RANGE;
double signalStrength = SS_STRONG + distFactor*(SS_WEAK - SS_STRONG);
intfRadio.setCurrentSignalStrength(signalStrength);
if (!intfRadio.isInterfered()) {
// Set to interfered again // Set to interfered again
dstRadio.interfereAnyReception(); intfRadio.interfereAnyReception();
} }
} }
} }