[ns] gts allocation IEEE 802.15.4
Hi please help me simulate the GTS allocation in IEEE 802.15.4. Thank you David - Never miss a thing. Make Yahoo your homepage.
[ns] Fwd: help on TU-Berlin EDCA model
Hello! I've installed TKN EDCA model in ns-allinone-2.28 ... It seems to work properly, but I'm getting segmentation fault. I've tried to simulate with multi_udpflows.tcl even, but the same message appears: segmentation fault, after the program created wired and wireless nodes. Could anyone help me? Thanks in advance, Débora
[ns] energy under ns2
Hi all, Please how can found the number of energy exhausted nodes and the energy consumption. i have running simulations of AODV under ns2.31 thanks for your help _ Ne gardez plus qu'une seule adresse mail ! Copiez vos mails vers Yahoo! Mail
[ns] Why I cannot declare member functions ???
Hi, I am trying to extend ns2 and when I compile my files with make I get In file included from dtn/DTNAgent.h:19, from dtn/DTNAgent.cc:15: dtn/routes.h: In constructor `LinkInfo::LinkInfo()': dtn/routes.h:16: warning: `LinkInfo::busyTo_' will be initialized after dtn/routes.h:15: warning: `char*LinkInfo::linkObj_' dtn/routes.h:9: warning: when initialized here dtn/DTNAgent.cc: At global scope: dtn/DTNAgent.cc:18: error: type `Routes::hdr_bdlprim' is not derived from type `Routes' dtn/DTNAgent.cc:40: error: cannot declare member function `Routes::DTNAgent::DTNAgent' within `Routes' dtn/DTNAgent.cc:50: error: cannot declare member function `Routes::DTNAgent::command' within `Routes' dtn/DTNAgent.cc:83: error: expected `}' at end of input dtn/DTNAgent.cc:37: error: expected unqualified-id at end of input make: *** [dtn/DTNAgent.o] Error 1 -bash-3.00$ Does anybody knows the reason or has any clue ?? Any help would be great, Cheers, adriano This message has been checked for viruses but the contents of an attachment may still contain software viruses, which could damage your computer system: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation.
[ns] 802_11 MAC error
I deeply apologize if this is a double post, but I had issues when I
was signing up for the mailing list(mistyped my email), so I don't
think my first post got to the list.
Hello,
I'm working with the DSR implementation in ns2.27 (I'm using an
older version because I hope to use a multi-rate 802.11 mac
implementation that was written for this version). Right now I've
left the mac stuff untouched and I'm concentrating on implementing the
FRESH metric in the DSR implementation. In a nutshell FRESH optimizes
the route discovery broadcasts of DSR so that they're targeted toward
the destination, (paper:
http://www.sigmobile.org/mobihoc/2003/papers/p257-dubois.pdf ). I'm
using a 100 node simulation with random waypoint mobility generated
via the ns setdest program and a single TCP flow and 2000 second
simulation time. FRESH is able to find a route just fine and delever
tcp traffic and it handles route errors, but about 800 seconds into
the simulation I get an error check_pktRTS:Invalid MAC Control
subtype which I tracked down to a failed switch statement in
mac-802_11.cc/int Mac802_11::check_pktRTS(). From what I can tell
this switch statement is supposed to be checking that the RTS (Request
to Send I'm assuming) packet has be created correctly.
Using gdb I've compared the mh of a check_pktRTS() that doesn't fail
(gdb) print *mh
$5 = {dh_fc = {fc_subtype = 11 '\v', fc_type = 1 '\001',
fc_protocol_version = 0 '\0', fc_order = 0 '\0', fc_wep = 0 '\0',
fc_more_data = 0 '\0', fc_pwr_mgt = 0 '\0', fc_retry = 0 '\0',
fc_more_frag = 0 '\0', fc_from_ds = 0 '\0', fc_to_ds = 0 '\0'},
dh_duration = 1278, dh_ra = \000\000\000\022\000,
dh_ta = \000\000\000\025\000, dh_3a = \000\000\000\000\000,
dh_scontrol = 0, dh_body = 0xa0569f8 }
to one that does fail
(gdb) print *mh
$6 = {dh_fc = {fc_subtype = 0 '\0', fc_type = 0 '\0',
fc_protocol_version = 0 '\0', fc_order = 0 '\0', fc_wep = 0 '\0',
fc_more_data = 0 '\0', fc_pwr_mgt = 0 '\0', fc_retry = 0 '\0',
fc_more_frag = 0 '\0', fc_from_ds = 0 '\0', fc_to_ds = 0 '\0'},
dh_duration = 0, dh_ra = \000\000\000\000\000,
dh_ta = \000\000\000\000\000, dh_3a = \000\000\000\000\000,
dh_scontrol = 0, dh_body = 0xa87b188 }
googling and searching of this list archives didn't yield an answer to
what's going on here, seems no one has run into this before, though
there are a lot of references to other issues with this MAC
implementation. It seems that the RTS packet should be generated in
sendRTS, but somehow this check_pktRTS is getting a RTS that is not
null since it doesn't fail the assert at the begging of that function,
which seems to indicate sendRTS WAS called, but the header information
is empty which seems to indicate the sendRTS WASN'T called.
Especially, since I didn't change anything in the MAC implementation
I'm at a loss as to what's going on.
Any help that anyone could offer would be greatly appreciated,
Ryan
[ns] help me regarding the make file plzzzzzz
Try make distclean or make distclean-recursive. It will do a full reconfigure from scratch. Look in the Makefile for all the different types of targets. Hope that helps. Message: 1 Date: Sun, 2 Dec 2007 20:33:26 -0500 From: Tamer Ahmed [EMAIL PROTECTED] Subject: [ns] help me regarding the make file plzz To: ns-users@ISI.EDU Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=ISO-8859-1 Dea NS-Users, I have installed the ns-2.29 on machine under Linux Fedora and tried also with the ns-2.31. Actually, after I have unzipped the tar file and wrote the ./installcommand, it gave me the following: make: Warning: File `Makefile.in' has modification time 1.3e+08 s in the future Makefile.in is newer than Makefile. You need to re-run configure. false make: *** [Makefile] Error 1 Ns make failed! See http://www.isi.edu/nsnam/ns/ns-problems.html for problems I did the ./configure command again and typed the make, but gave me the following again: config.status: creating indep-utils/webtrace-conv/nlanr/Makefile config.status: creating indep-utils/webtrace-conv/epa/Makefile config.status: creating indep-utils/cmu-scen-gen/setdest/Makefile config.status: creating autoconf.h config.status: autoconf.h is unchanged [EMAIL PROTECTED] ns-2.31]$ make make: Warning: File `Makefile.in' has modification time 1.3e+08 s in the future Makefile.in is newer than Makefile. You need to re-run configure. false make: *** [Makefile] Error 1 [EMAIL PROTECTED] ns-2.31]$ So, Could any body help me regarding that please?? It is urgent please. Thanks in advance Thamer Al-Jahamneh
[ns] Wireless Communication Books
I am searching for electrnics book for the following, if any one have its good to send me B. P. Lathi: Modern Digital and Analog Communication Systems 3/e, Oxford University Press 1998. William Stalling: Wireless Communications and Networks, Digital Communications: Fundamentals and Applications, by Bernard Sklar, Prentice Hall, 2001, ISBN 0-13-084788-7 Communication systems engineering, by John G. Proakis and Masoud Salehi, Prentice Hall, 2002, ISBN 0-13-095007-6 ·Introduction to digital communications, by Michael B. Pursley, Pearson, Prentice Hall, 2005, International edition, ISBN: 0-13-123392-0 ·Digital communications, by Ian A. Glover and Peter M. Grant, Pearson, Prentice Hall, 2004, second edition, ISBN: 0-13-089399-4 ·“Data and Computer Communications,” W. Stallings, 7th ed., Prentice Hall, 2004. ·“Data Communications and Networking,” Behrouz A. Forouzan, 3rd ed, Mc-Graw Hill, 2004 Get easy, one-click access to your favorites. Make Yahoo! your homepage. http://www.yahoo.com/r/hs
