[ns] Add queue events on trace file

2008-09-17 Thread mozam


Dear ns-users,

I would like to add in the trace file the enque and deque events of the
packets, that is, the incoming time of the packet in the queue, the outgoing
time of the packet in the queue, the size of the packet and the current node
address. 
As interface queue type, I am using Queue/DropTail/PriQueue and the packets
arrive in the queue according to a Poisson process.

Any help is welcome.
Thank you very much

Mozam
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[ns] Steady state throughput

2008-08-04 Thread mozam


Dear NS-users,

I would like to evaluate the steady-state throughput of a network of few
nodes with respect to the packet arrival rate (PAR).
For each PAR, I extract from the trace file the corresponding Throughput by
using the following formula
Throughput = (total number of bits received) / (simulation duration). Let's
mentioned that in the simulation duration, the transient period is not
considered.
My problem is that I don't know how to compute the steady-state throughput.
Because the throughput I am computing varies with the simulation duration. I
tried to simulate with very long simulation durations (4000...6000
seconds), but there are still significant changes in the throughput values
and the simulation takes too long time.

How could I simulate the steady-state throughput?
Thank you very much in advance for your help.

Mozam

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[ns] steady state throughput

2008-06-10 Thread mozam


Hello,

Excuse me if i'm in the wrong forum, just do not consider this post message.

I am a NS 2.29's user and I am evaluating the IEEE 802.15.4 performances. 
I would like to evaluate the throughput of a network of few nodes with
respect to the packet arrival rate (PAR).
For each PAR, I extract from the trace file the corresponding Throughput.
However, I notice that the throughput varies with the simulation duration.
But in my work, I am looking for steady state throughput, a kind of mean
throughput.
I tried to simulate with very long simulation durations (2000...3
seconds), but there are still changes in the throughput values and the
simulation takes too long time.

Please, could someone help me? How should I simulate that throughput?
Thank you very much in advance.

Mozam
  
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[ns] Steady state throughput

2008-06-10 Thread Parfait Mozam


Hello,

Excuse me if i'm in the wrong forum, just do not consider this post
 message.

I am a NS 2.29's user and I am evaluating the IEEE 802.15.4
 performances. 
I would like to evaluate the throughput of a network of few nodes with
respect to the packet arrival rate (PAR).
For each PAR, I extract from the trace file the corresponding
 Throughput.
However, I notice that the throughput varies with the simulation
 duration.
But in my work, I am looking for steady state throughput, a kind of
 mean
throughput.
I tried to simulate with very long simulation durations (2000...3
seconds), but there are still changes in the throughput values and the
simulation takes too long time.

Please, could someone help me? How should I simulate that throughput?
Thank you very much in advance.

Mozam

   


[ns] gts allocation IEEE 802.15.4

2007-12-03 Thread Parfait Mozam


Hi
please help me simulate the GTS allocation in IEEE 802.15.4.
Thank you
David

   
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