[ns] help ! for increase communication rage to 1600 m

[Phitsanu Eamsomboon]

My name is Phitsanu from Thailand , I use ns-2 for to do my research .
May I trouble you for ask you some question , I try to increase Transmission
rage is 1600 m by increase Pt but  It still can communicate in 500 m range ,


How can I  increase transmission rage is 1600 m if I use TwoRayGrounf model.
How can I calculate , Please recommend me !!!!