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

2007-08-08 Thread Faisal Aslam
Read the section of transmission models in NS-2 manual. You should check which transmission model (e.g. FreeSpace, TwoRayGround, Shadowing) is in use. You should try to adjust the RXThreah_ using threshold.c as described in the NS manual. regards, Faisal Phitsanu Eamsomboon wrote: My name

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

2007-08-08 Thread wayan mustika
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

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

2007-08-08 Thread Daniel Mahrenholz
Hi, adjusting transmission power and thresholds is not sufficient for such a long distance. You also need to adjust MAC timeout values. Citing from my own mail with subject Re: [ns] MAC/802.11 STA error on ACK - The Linux driver for the madwifi cards includes a utility to calculate all

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

2007-08-08 Thread Mohammed Abu Hajar
See the following two web sites for related information: http://hpds.ee.ncku.edu.tw/~smallko/ns2/range_en.htm http://140.116.72.80/~smallko/ns2/11b.htm Mohammed AbuHajar Phitsanu Eamsomboon [EMAIL PROTECTED] wrote: My name is Phitsanu from Thailand , I use ns-2 for to do

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

2007-08-07 Thread Stefano Busanelli
Il giorno mar, 07/08/2007 alle 12.47 +0700, Phitsanu Eamsomboon ha scritto: How can I increase transmission rage is 1600 m if I use TwoRayGrounf model. How can I calculate , Please recommend me Hi, you have to follow this two steps procedure: 1) first you should compute propagation

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

2007-08-06 Thread 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