In the two-ray ground model,the receiver power at distance d is given by
following formula:
Pr(d) =Pt * Gt * Gr * ht^2 * hr^2 / (d^4)
where ht is the transmitter antenna height and hr is the receiver antenna
height. If the distance between sender and receiver is relative large, the
formula can be simplified as:
Pr(d) = Ct * Pt / (d^4)
where Ct is a constant
so combining above equation with the sensitivity threshold, we have the radio
coverage in the two ray ground model is a disk of radius 4VCtPt
One way to increase the communication range is either increase the power at
transmitter or increase the sensitivity threshold of receiver. For increasing
the sensitivity at receiver you can adjust the CSThresh_ and RXThresh_.
Regards,
Wayan
KMITL Thailand
Phitsanu Eamsomboon <[EMAIL PROTECTED]> wrote:
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 !!!!
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