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Wireless Node Configuration in Network Simulator 2 (NS2)

The node configuration in ns2 is a special task in which the number of nodes can be configured for a set of parameters. The following table tells about the node  configuration parameters as defined in the ns-lib.tcl

The readers are requested to refer the ns-lib.tcl file for more information.

Option Available Values Remarks
addressType flat, hierarchichal  
MPLS ON,OFF Multi protocol Label Switching
wiredRouting ON, OFF  
llType LL, LL/Sat Link Layer
macType Mac/802_11, Mac/Csma/Ca, Mac/Sat, Mac/Sat/UnslottedAloha, Mac/Tdma Medium Access Control
ifqType Queue/DropTail, Queue/DropTail/PriQueue Interface Queue type
phyType Phy/wirelessPhy, Phy/Sat Physical Layer Type
propType Propagation/TwoRayGround, Propagation/Shadowing Propagation Type
antType Antenna/OmniAntenna, Antenna type
Channel Channel/WirelessChannel, Channel/Sat Channel to be used
mobileIP ON,OFF to set the IP for Mobile or not
energyModel EnergyModel energy model to be enabled or not
initialEnergy <joule> in terms of joules (Ex: 3.24)
txPower   Power in terms of Watts (0.32)
rxPower   Power in terms of Watts (0.1)
idlePower   Power in terms of Watts (0.02)
agentTrace ON, OFF Tracing to be on or off
routerTrace ON, OFF Tracing to be on or off
macTrace ON, OFF Tracing to be on or off
movementTrace ON, OFF Tracing to be on or off
errProc UniformErrorProc  
toraDebug ON, OFF  


An Example

$ns node-config -addressType hierarchical \
-adhocRouting AODV \
-llType LL \
-macType Mac/802_11 \
-ifqType Queue/DropTail/PriQueue \
-ifqLen 50 \
-antType Antenna/OmniAntenna \
-propType Propagation/TwoRayGround \
-phyType Phy/WirelessPhy \
-topologyInstance \$topo \
-channel Channel/WirelessChannel \
-agentTrace ON \
-routerTrace ON \
-macTrace OFF \
-movementTrace OFF


  1. Dear all , who can help me for design network , and node configuration , and how can select tx power and rxpower??whats level for tx power and rxpower??


    1. dear i am also facing such problem...if u got then plz mail me on

    2. depending on the type of network, you can set the power. for WSN, you can get the power history of a IRIS or MICA and set the corresponding values, for a wifi network, set power based on the battery profile of the device.....

  2. I am facing error,

    segmentation fault(core dumped)

    Please help me..

    1. simply change energy value like if using 70 try for 90,100......

  3. Hi all, Can you suggest me how to fill buffer(queue) of intermediate nodes in ns2 through tcl script. ??


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