[ns] What this code means?
Luciana Esteves Neves Hilario
lesteves at ic.uff.br
Fri Apr 7 05:39:42 PDT 2006
Thank you Sasan!
Just one more question: how can I see the bit rate of the transmition?
----- Original Message -----
From: "Sasan Sahraei" <ss1 at student.cs.ucc.ie>
To: <lesteves at ic.uff.br>
Cc: <ns-users at isi.edu>
Sent: Thursday, April 06, 2006 6:40 PM
Subject: Re: [ns] What this code means?
> Hi Luciana,
> SharedMedia interface with parameters:
> extracted from the header file:
> double freq_; // frequency
> double lambda_; // wavelength (m)
> double L_; // system loss factor
> double RXThresh_; // receive power threshold (W)
> double CSThresh_; // carrier sense threshold (W)
> double CPThresh_; // capture threshold (db)
> double Pt_; // transmitted signal power (W)
> hope this helps,
>> Hi everybody!
>> I`m doing some tests with an old version of ns-2 (ns-allinone-2.1b3),
>> and I don`t understand a part of tcl code and I could`n find the
>> meaning in ns manual. I think is because this ns version is old and the
>> manual is referring of new version. The code is following:
>> NetIf/SharedMedia set CPThresh_ 10.0
>> NetIf/SharedMedia set CSThresh_ 1.559e-11
>> NetIf/SharedMedia set RXThresh_ 3.652e-10
>> NetIf/SharedMedia set Rb_ 2.0e6
>> NetIf/SharedMedia set Pt_ 0.2818
>> NetIf/SharedMedia set freq_ 914e+6
>> NetIf/SharedMedia set L_ 1.0
>> I need to know the meaning of this sets (CPThresh_, CSThresh_,
>> Rb_, Pt_, freq_, L_). I found that the Network Interface called Shared
>> Media now calls Phy/WirellesPhy.
>> These tests are in an Ad Hoc network, with a QoS protocol.
>> Another question: the same code could generate different results if runs
>> in differents computers?
>> I hope that someone could help me. Thanks a lot!
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