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Need help with the wireless tracefile.

  • Anonymous
    Inactive

    refer
    http://nsnam.isi.edu/nsnam/index.php/NS-2_Trace_Formats

    it says

    “Note that the value for the -Hd flag may be -1 or -2. -1 means that the packet is a broadcast packet, and -2 means that the destination node has not been set. -2 is typically seen for packets that are passed between the agent (-Nl AGT) and routing (-Nl RTR) levels.”

    If you are getting very high number, then it may be a partial compilation of ns2 trace related files.

    Are you using

    $ns use-newtrace

    in your tcl script?

    #490 July 3, 2007 at 2:04 pm
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  • allke0527
    Participant

    Thanks for your reply and help. Could you explain why the number of Hd become so high when transmit real cbr data? And what did you mean by partial compilation of ns2 trace related files? I could’t understand it. Should its value be one of the node id which is from 0 to 7? I use NOAH routing protocol for wimax configuration. Is this the reason?

    I do use $ns use-newtrace. And the router0 is the transmitter while the mobile node is receiver. The scenario consists of both wire and wireless connection so the trace file has both format. But I can’t understand why the trace format for some wireless link are shorter than the standard one. Does that mean there is no data transmission? But there should be some signalling message such as RA or Sol.

    Thanks very much!

    #491 July 3, 2007 at 3:21 pm
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  • Charles Pandian
    Keymaster

    what did you mean by partial compilation of ns2 trace related files?
    Ans : if you are trying to add some new agent or protocol, if there is some change in trace support, then it should al so be done properly. In some cases, the simulation will run without the new trace support but, the output trace file will not reflect some events.

    Should its value be one of the node id which is from 0 to 7
    Ans : No. according to manual it is not node id.

    I use NOAH routing protocol for wimax configuration. Is this the reason?
    Ans : While adding NOAH routing protocol there is no additions for trace support. It means the packets of NOAH will use one of the existing trace supports. So probably it will not be a problem.

    But I can’t understand why the trace format for some wireless link are shorter than the standard one.
    Ans : probably it is due to the mixed scenario. Wired node trace is little bit different from wireless node trace.

    #492 July 4, 2007 at 1:05 pm
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  • Eeshal
    Participant

    can u give me the tcl script for handover b/w umts and Wimax…
    i really dunno how to do it or can u help me….
    thanx in advance

    #493 July 3, 2008 at 10:57 am
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  • shinichikudo
    Participant

    simulation credit auto
    Hi there. Would a new one be welcome here?
    Have a good day 😀

    #494 May 20, 2009 at 8:16 am
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