Hi, I am simulating an ad-hoc environment under NS 2.29 in a Ubuntu 6.06 (Dapper) LTS.
In my simulation I am using the shadowing propagation model because the twoRayGround and the free space are far away from the reality. When I start the simulations I get the following distCST_ = 179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.0 this is a very huge number, so I think there is an error. The parameters of the Shadowing model are the following ones: # ========================================== # First we set values of shadowing model # ========================================== Propagation/Shadowing set pathlossExp_ 2.0 ;# path loss exponent Propagation/Shadowing set std_db_ 6.3 ;# shadowing deviation (dB) Propagation/Shadowing set dist0_ 1.0 ;# reference distance (m) Propagation/Shadowing set seed_ 0 ;# seed for RNG # ========================================== The Thresholds of the interface are: Phy/WirelessPhy set CSThresh_ 3.162278e-13 ;# Carrier Sense Power (Sensivity) -95dbm @1Mbps Phy/WirelessPhy set RXThresh_ 3.162278e-10 ;# Receive Power Threshold I know some people had the same distCST_ but with other versions of NS (the lower ones) and I also know this bug was fixed in the ns 2.28 version. So, why I am getting this huge value? Maybe it comes from an incorrect parameter I am giving to the Shadowing propagation model? Thanks for your help Víctor González