i want to know how to set value of Pt transmitted power for range transmission
Phy/WirelessPhy set Pt_ 0.2818 (gives my signal will travel upto 250m )
this code for 250m but what about authers ranges like 20 or 30m what is the method for calculating Pt?
please help
Another example with distances : ns2.3x/tcl/ex/wpan/wpan_demo4b.tcl → →
lines 61 - 77 :
# For model 'TwoRayGround'
set dist(5m) 7.69113e-06
set dist(9m) 2.37381e-06
set dist(10m) 1.92278e-06
set dist(11m) 1.58908e-06
set dist(12m) 1.33527e-06
set dist(13m) 1.13774e-06
set dist(14m) 9.81011e-07
set dist(15m) 8.54570e-07
set dist(16m) 7.51087e-07
set dist(20m) 4.80696e-07
set dist(25m) 3.07645e-07
set dist(30m) 2.13643e-07
set dist(35m) 1.56962e-07
set dist(40m) 1.20174e-07
Phy/WirelessPhy set CSThresh_ $dist(12m)
Phy/WirelessPhy set RXThresh_ $dist(12m
)
? Could "0.2818" be a mathematical notation ?
Examples from simulation files :
cd [examples]/ && grep -R "Phy/WirelessPhy set Pt" *
Phy/WirelessPhy set Pt_ 0.3196e-5 ;#power needed to have 100m of distance
Phy/WirelessPhy set Pt_ 0.09588e-5 ;#power needed to have 30m of distance
Phy/WirelessPhy set Pt_ 0.281838
Phy/WirelessPhy set Pt_ 0.025
Phy/WirelessPhy set Pt_ 1
Phy/WirelessPhy set Pt_ 0.28 ;# transmitter signal power (Watt)
Phy/WirelessPhy set Pt_ 0.031622777 ;# Tx power (W)
Phy/WirelessPhy set Pt_ 7.214e-3
Phy/WirelessPhy set Pt_ 8.5872e-4 ;# 40m
Phy/WirelessPhy set Pt_ 1.33826e-3 ;# 50m
Phy/WirelessPhy set Pt_ 7.214e-3 ;# 100m
Phy/WirelessPhy set Pt_ 0.2818 ;# 250m
Phy/WirelessPhy set Pt_ 2.28289e-11 ;# 500m
Phy/WirelessPhy set Pt_ 1.1272 ;# 1000m transmission range
ns2