1 / 10 Mobile Networking in ns Speaker ： Mark Yang

2 / 10 Abstract  Basic wireless model Pure wireless LANs Multihop ad-hoc networks  Extensions wireless model Wired-cum-wireless MobileIP

3 / 10 Basic – creating wireless topology set topo [new Topography] $topo load_flatgrid $opt(x) $opt(y) where opt(x) and opt(y) are the boundaries used in simulation.

4 / 10 Basic – node config $ns_ node-config-adhocRouting DSDV or DSR or TORA or AODV \ -topoInstance $topo \ -addressType hierarchical \ -wiredRouting ON \ -mobileIP ON \ -llType LL \ -macType Mac/802_11 \ -antType Antenna/OmniAntenna \ -propType Propagation/TwoRayGround \ -phyType Phy/WirelessPhy \ -channelType Channel/WirelessChannel \ -ifqType Queue/DropTail/PriQueue \ -ifqLen \ -agentTrace ON or OFF \ -routerTrace ON or OFF \ -macTrace ON or OFF \ -movementTrace ON or OFF Wired-cum-wireless MobileIP

5 / 10 Basic – node movement $node set X_ $node set Y_ $node set Z_  Start-position $ns at $time $node setdest  Future destinations

6 / 10 Basic – new traces $ns use-newtrace s -t Hs 1 -Hd -1 -Ni 1 -Nx Ny Nz Ne Nl RTR -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 -Is Id It message -Il 32 -If 0 -Ii 0 -Iv 32 event s,r,d,f time id for next hop next hop destination node id node’s x- coordinate node’s z- coordinate node’s y- coordinate node energy level trace level reason for this event duration dest’s ethernet addr source’s ethernet addr ethernet type source’s addr.port dest’s addr.port packet type packet size flow id unique id ttl value -H: next hop info -N: node info -M: MAC level info -I: IP level info

7 / 10 Basic – traffic scenario generator source pattern-file ns cbrgen.tcl -type cbr -nn 10 -seed 1.0 -mc 8 -rate 4.0 > pattern-file ns cbrgen.tcl -type tcp -nn 25 -seed 0.0 -mc 8 > pattern-file # nodes: 10, max conn: 8, send rate: 0.25, seed: 1.0 # 1 connecting to 2 at time set udp_(0) [new Agent/UDP] $ns_ attach-agent $node_(1) $udp_(0) set null_(0) [new Agent/Null] $ns_ attach-agent $node_(2) $null_(0) set cbr_(0) [new Application/Traffic/CBR] $cbr_(0) set packetSize_ 512 $cbr_(0) set interval_ 0.25 $cbr_(0) set random_ 1 $cbr_(0) set maxpkts_ $cbr_(0) attach-agent $udp_(0) $ns_ connect $udp_(0) $null_(0) $ns_ at "$cbr_(0) start“ : Introduce random “noise” in the scheduled departure time.

8 / 10 Basic – movement scenario generator source pattern-file ~ns/indep-utils/cmu-scen-gen/setdest./setdest -n 3 -p 2.0 -s t 300 -x 600 -y 600 > pattern-file set god_ [God instance] $ns_ at "$node_(2) setdest ” $ns_ at "$node_(1) setdest ” $ns_ at "$node_(0) setdest ” $god_ set-dist $god_ set-dist $god_ set-dist $node_(2) set Z_ $node_(2) set Y_ $node_(2) set X_ $node_(1) set Z_ $node_(1) set Y_ $node_(1) set X_ $node_(0) set Z_ $node_(0) set Y_ $node_(0) set X_ : The shortest path between node 1 and node 2 is 2 hops.

9 / 10 Extensions – wired-cum-wireless $ns_ node-config -addressType hierarchical AddrParams set domain_num_ 2 lappend cluster_num 2 1 AddrParams set cluster_num_ $cluster_num lappend eilastlevel AddrParams set nodes_num_ $eilastlevel set temp { } for {set i 0} {$i < $num_wired_nodes} {incr i} { set W($i) [$ns_ node [lindex $temp $i]] } $ns_ node-config -wiredRouting ON set temp { } set BS(0) [$ns_ node [lindex $temp 0]] $BS(0) random-motion 0 $ns_ node-config -wiredRouting OFF for {set j 0} {$j < $opt(nn)} {incr j} { set node_($j) [ $ns_ node [lindex $temp [expr $j+1]] ] $node_($j) base-station [AddrParams addr2id [$BS(0) node-addr]] } W(0) W(1) BS(0) node_(1) node_(0) node_(2) domain 0 domain 1 cluster 0 cluster 1 cluster 0 0,0,0 0,1,0 1,0,0 1,0,1 1,0,2 1,0,3

10 / 10 Extensions – MobileIP $ns_ node-config -mobileIP ON set HA [$ns_ node 1.0.0] set FA [$ns_ node 2.0.0] $HA random-motion 0 $FA random-motion 0 set MH [$ns_ node 1.0.1] set node_(0) $MH set HAaddress [AddrParams addr2id [$HA node-addr]] [$MH set regagent_] set home_agent_ $HAaddress W(0) W(1) HA MH FA