Following is a list of commands used in wireless simulations:
$ns_ node-config -addressingType \This command is used typically to configure for a mobilenode. For more info about this command (part of new node APIs) see chapter titled "Restructuring ns node and new Node APIs" in ns Notes and Documentation.
-adhocRouting \ -llType \ -macType \ -propType \ -ifqType \ -ifqLen \ -phyType \ -antType \ -channelType \ -topoInstance \ -wiredRouting \ -mobileIP \ -energyModel \ -initialEnergy \ -rxPower \ -txPower \ -agentTrace \ -routerTrace \ -macTrace \ -movementTrace \
This command previously used to enable logging of mobilenode's movement has now been replaced by $ns_ node-config -movementTrace ON or OFF.
This command is used to create a God instance. The number of mobilenodes is passed as argument which is used by God to create a matrix to store connectivity information of the topology.
$topo load_flatgrid X Y optional:res
This initializes the grid for the topography object. <X> and <Y> are the x-y co-ordinates for the topology and are used for sizing the grid. The grid resolution may be passed as <res>. A default value of 1 is normally used.
$topo load_demfile file-descrptor
For loading DEMFile objects into topography. See /dem.cc,.h for details on DEMFiles.
$ns_ namtrace-all-wireless namtrace X Y
This command is used to initialize a namtrace file for logging node movements to be viewed in nam. The namtrace file descriptor, the X and Y co-ordinates of the wireless topology is passed as parameters with this command.
$ns_ nam-end-wireless stop-time
This command is used to tell nam the simulation stop time given by <stop-time>.
$ns_ initial_node_pos node size
This command defines the node initial position in nam. <size> denotes the size of node in nam. This function must be called after mobility model has been defined.
$mobilenode random-motion 0 or 1
Random-motion is used to turn on random movements for the mobilenode, in which case random destinations are assigned to the node. 0 disables and 1 enables random-motion.
$mobilenode setdest X Y s
This command is used to setup a destination for the mobilenode. The mobile node starts moving towards destination given by <X> and <Y> at a speed of <s> m/s.
This command is used to reset all the objects in the nodes (network components like LL, MAC, phy etc).
Following is a list of internal procedures used in wireless networking:
$mobilenode base-station BSnode-hier-addr
This is used for wired-cum-wireless scenarios. Here the mobilenode is provided with the base-stationnode info for its domain. The address is hierarchical since wired-cum-wireless scenarios typically use hierarchical addressing.
$mobilenode log-target target-object
The <target-object>, which is normally a trace object, is used to log mobilenode movements and their energy usage, if energy model is provided.
$mobilenode topography topoinstance
This command is used to provide the node with a handle to the topography object.
A mobilenode may have more than one network interface. This command is used to pass handle for a network interface to the node.
$mobilenode namattach namtracefd
This command is used to attach the namtrace file descriptor <namtracefd> to the mobilenode. All nam traces for the node are then written into this namtrace file.
$mobilenode radius r
The radius <r> denotes the node's range. All mobilenodes that fall within the circle of radius <r> with the node at its center are considered as neighbours. This info is typically used by the gridkeeper.
This command is used to start off the movement of the mobilenode.