Re: [ns] [NS-ANS] Re: help regarding ARQ
Thank you very much for the replay But I want to implement to wireless model I am using 802.11 as mac protocol If you have any idea please replay From: "Teerawat@UBC" To: amareswararao k Cc: "ns-users@isi.edu" Sent: Tuesday, 12 April 2011 7:46 AM Subject: Re: [NS-ANS] Re: [ns] help regarding ARQ HI, If you are interested in implementing ARQ in NS2, please read http://www.ns2ultimate.com/post/1539258323/arq-module-program-update Best Wishes, Teerawat Issariyakul http://www.ns2ultimate.com/ http://www.facebook.com/pages/Teerawat-Issariyakul/358240861417 http://twitter.com/T_Bear http://www.t-issariyakul.blogspot.com http://www.ece.ubc.ca/~teerawat On Apr 11, 2011, at 11:52 PM, amareswararao k wrote: > > could any one please give me a suggestion about link layer ARQ > or any website >
Re: [ns] help regarding ARQ
could any one please help me how to use LL/Arq for wireless nodes any suggestion is appreciated From: amareswararao k To: "ns-users@isi.edu" Sent: Monday, 11 April 2011 10:22 PM Subject: [ns] help regarding ARQ
[ns] help regarding ARQ
could any one please give me a suggestion about link layer ARQ or any website
[ns] how to drop lowest priority packets
Hi all, I want to drop lowest priority packets. But I don't know which queue to use to do that operation please replay me urgent Thanks in advance
[ns] help regarding error model
Hi everybody,
I want to add busty wireless losses to wireless channel .
I am using two state Markov model as below
#Make wireless link error model for random packet drop : two states markoverror
model没有用到
proc TwoStateMarkovErr {} {
global loss_rate
set tmp0 [new ErrorModel/Uniform 0 pkt]
set tmp1 [new ErrorModel/Uniform 1 pkt]
# Array of states (error models)
set m_states [list $tmp0 $tmp1]
# Durations for each of the states, tmp, tmp1 and tmp2, respectively
set m_periods [list 0.05 0.05]
# Transition state model matrix
set m_transmx { {0.8 0.2} {0.8 0.2} }
set m_trunit pkt
# Use time-based transition
set m_sttype time
set m_nstates 2
set m_nstart [lindex $m_states 0]
set em [new ErrorModel/MultiState $m_states $m_periods $m_transmx \
$m_trunit $m_sttype $m_nstates $m_nstart]
return $em
}
But i don't know exactly what it does and i am not getting any packet loss also.
please help me to get wireless busty losses.
Any suggestion is appreciated.
[ns] stack error while using TFRC sink
Hi all, i am getting following error when i am using [new Agent/TFRCSink] *** stack smashing detected ***: ns terminated === Backtrace: = /lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x48)[0x754de8] /lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x0)[0x754da0] ns(_ZN8CMUTrace10nam_formatEP6Packeti+0xbc0)[0x82a84b8] ns(_ZN8CMUTrace6formatEP6PacketPKc+0x6b)[0x82a852f] ns(_ZN8CMUTrace4recvEP6PacketP7Handler+0x71)[0x82a8853] ns(_ZN5Agent4sendEP6PacketP7Handler+0x2c)[0x81c2364] ns(_ZN13TfrcSinkAgent7sendpktEd+0x19a)[0x83080ce] ns(_ZN13TfrcSinkAgent7nextpktEd+0x24)[0x8307ed2] ns(_ZN13TfrcSinkAgent4recvEP6PacketP7Handler+0x897)[0x8307c71] ns(_ZN9Connector4sendEP6PacketP7Handler+0x2c)[0x81b89dc] ns(_ZN8CMUTrace4recvEP6PacketP7Handler+0xb9)[0x82a889b] ns(_ZN10Classifier4recvEP6PacketP7Handler+0x55)[0x81bc20f] ns(_ZN10Classifier4recvEP6PacketP7Handler+0x55)[0x81bc20f] ns(_ZN10Classifier4recvEP6PacketP7Handler+0x55)[0x81bc20f] ns(_ZN10Classifier4recvEP6PacketP7Handler+0x55)[0x81bc20f] ns(_ZN14HierClassifier4recvEP6PacketP7Handler+0x30)[0x831d02c] ns(_ZN8NsObject6handleEP5Event+0x27)[0x81b3ecb] ns(_ZN9Scheduler8dispatchEP5Eventd+0x95)[0x81b0c5b] ns(_ZN9Scheduler3runEv+0x2c)[0x81b0b8e] ns(_ZN9Scheduler7commandEiPKPKc+0x6b)[0x81b0d3d] ns(_ZN8TclClass12dispatch_cmdEPvP10Tcl_InterpiPPKc+0x32)[0x83dc05e] ns[0x83e1ea7] ns(TclInvokeStringCommand+0x6e)[0x83e494e] ns(TclEvalObjvInternal+0x35b)[0x83e665b] ns[0x8412baa] ns(TclCompEvalObj+0xdd)[0x841717d] ns[0x8412a43] ns(TclCompEvalObj+0xdd)[0x841717d] ns(TclObjInterpProc+0x2a7)[0x84413a7] ns(TclProcInterpProc+0x80)[0x8441860] ns[0x83e20cf] ns(TclInvokeStringCommand+0x6e)[0x83e494e] ns(TclEvalObjvInternal+0x35b)[0x83e665b] ns[0x8412baa] ns(TclCompEvalObj+0xdd)[0x841717d] ns(TclObjInterpProc+0x2a7)[0x84413a7] ns(TclProcInterpProc+0x80)[0x8441860] ns[0x83e1ea7] ns(TclInvokeStringCommand+0x6e)[0x83e494e] ns(TclEvalObjvInternal+0x35b)[0x83e665b] ns(Tcl_EvalEx+0x4fc)[0x83e72fc] ns(Tcl_FSEvalFile+0x243)[0x84304a3] ns(Tcl_Main+0x357)[0x8433b37] ns(nslibmain+0x20)[0x83db0bc] ns(main+0x1b)[0x83db22f] /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0x68ab56] ns[0x81aa361] === Memory map: 0011-00112000 r-xp 08:05 1106019 /usr/lib/libXau.so.6.0.0 00112000-00113000 r--p 1000 08:05 1106019 /usr/lib/libXau.so.6.0.0 00113000-00114000 rw-p 2000 08:05 1106019 /usr/lib/libXau.so.6.0.0 0011b000-0011d000 r-xp 08:05 1123562 /lib/tls/i686/cmov/libdl-2.10.1.so 0011d000-0011e000 r--p 1000 08:05 1123562 /lib/tls/i686/cmov/libdl-2.10.1.so 0011e000-0011f000 rw-p 2000 08:05 1123562 /lib/tls/i686/cmov/libdl-2.10.1.so 0011f000-0013b000 r-xp 08:05 1107051 /usr/lib/libxcb.so.1.1.0 0013b000-0013c000 r--p 0001c000 08:05 1107051 /usr/lib/libxcb.so.1.1.0 0013c000-0013d000 rw-p 0001d000 08:05 1107051 /usr/lib/libxcb.so.1.1.0 00388000-004b2000 r-xp 08:05 1106013 /usr/lib/libX11.so.6.2.0 004b2000-004b3000 ---p 0012a000 08:05 1106013 /usr/lib/libX11.so.6.2.0 004b3000-004b4000 r--p 0012a000 08:05 1106013 /usr/lib/libX11.so.6.2.0 004b4000-004b6000 rw-p 0012b000 08:05 1106013 /usr/lib/libX11.so.6.2.0 004b6000-004b7000 rw-p 00:00 0 004d7000-004ea000 r-xp 08:05 1123567 /lib/tls/i686/cmov/libnsl-2.10.1.so 004ea000-004eb000 r--p 00012000 08:05 1123567 /lib/tls/i686/cmov/libnsl-2.10.1.so 004eb000-004ec000 rw-p 00013000 08:05 1123567 /lib/tls/i686/cmov/libnsl-2.10.1.so 004ec000-004ee000 rw-p 00:00 0 005b4000-005d8000 r-xp 08:05 1123564 /lib/tls/i686/cmov/libm-2.10.1.so 005d8000-005d9000 r--p 00023000 08:05 1123564 /lib/tls/i686/cmov/libm-2.10.1.so 005d9000-005da000 rw-p 00024000 08:05 1123564 /lib/tls/i686/cmov/libm-2.10.1.so 005fa000-005fe000 r-xp 08:05 1106030 /usr/lib/libXdmcp.so.6.0.0 005fe000-005ff000 rw-p 3000 08:05 1106030 /usr/lib/libXdmcp.so.6.0.0 00674000-007b2000 r-xp 08:05 1123556 /lib/tls/i686/cmov/libc-2.10.1.so 007b2000-007b4000 r--p 0013e000 08:05 1123556 /lib/tls/i686/cmov/libc-2.10.1.so 007b4000-007b5000 rw-p 0014 08:05 1123556 /lib/tls/i686/cmov/libc-2.10.1.so 007b5000-007b8000 rw-p 00:00 0 00926000-00934000 r-xp 08:05 1106032 /usr/lib/libXext.so.6.4.0 00934000-00935000 r--p d000 08:05 1106032 /usr/lib/libXext.so.6.4.0 00935000-00936000 rw-p e000 08:05 1106032 /usr/lib/libXext.so.6.4.0 00b55000-00b56000 r-xp 00:00 0 [vdso] 00c48000-00d2e000 r-xp 08:05 1109340 /usr/lib/libstdc++.so.6.0.13 00d2e000-00d32000 r--p 000e6000 08:05 1109340 /usr/lib/libstdc++.so.6.0.13 00d32000-00d33000 rw-p 000ea000 08:05 1109340 /usr/lib/libstdc++.so.6.0.13 00d33000-00d3a000 rw-p 00:00 0 00d65000-00d8 r-xp 08:05 1119479 /lib/ld-2.10.1.so 00d8-00d81000 r--p 0001a000 08:05 1119479 /lib/ld-2.10.1.so 00d81000-00d82000 rw-p 0001b000 08:05 1119479 /lib/ld-2.10.1.so 00f96000-00fb2000 r-xp 08:05
[ns] help example tcl program for RTP and RTCP
hi all, could any any one please give me a tcl program which uses RTP (sender) and RTCP (receiver) . i am using ns 2.34 thanks in advance
[ns] how to set distance of coverage of base station
hi all, could u please tell me how to set distance of coverage of a base station. thanks in advance
[ns] how to set distance of coverage of base station and its position
hi all, when i am trying to set the positions of base station using below # Create HA and FA # Position (fixed) for base-station nodes (HA & FA). set HA [$ns_ node 1.0.0] $HA random-motion 0 $HA set X_ [expr $opt(x)/2-50] $HA set Y_ [expr $opt(y)/2-50] $HA set Z_ 0. set FA [$ns_ node 2.0.0] $FA random-motion 0 $ns_ at 0.0 "$HA label HA" $ns_ at 0.0 "$FA label FA" $FA set X_ [expr $opt(x)/2+50] $FA set Y_ [expr $opt(y)/2-50] $FA set Z_ 0. but in nam, only FA base station is at the specified location HA position is varying if link delay changes . i don't know how it is happening so please help me to set the positions of base stations thanks in advance
[ns] how to find energy consumed to transfer from src to dst for each packet
hi all, I am working on energy efficient wireless network. i want to know how much energy consumed for each packet in the entire path. i don't know how to implement it. i have already spent so much time. any help is appreciated. thanks in advance.
