[ns] Wimax implementation in ns2
Hi guys, I wanted to know which all are the main files related to wimax implementation in ns2. Like for wifi - ieee 802.11, it is mac-802_11.cc, .h and mac-timers.cc, .h; correspondingly, which files are for 802.16 (wimax) ? Nihad S.
[ns] Problems attaching new agent to a node
Hello everybody,
I implemented a new agent Clustering in application layer. I put my .cc,
.h, and .tcl files in my own directory (mohsen) under the ns directory.
Then I added the new packet type in 'packet.h' under packet_t{} and p_info
{}. Also I did necessary changes in ns-default.tcl, ns-packet.tcl, and
Makefile. Then I did 'make clean', 'make depend', and 'make'. Everything
was fine. In my tcl script when I make an object of my new agent and I try
to attach it to a node, NS returns the following Error.
*Here is a piece of my tcl script:*
---
#Create a node
set n0 [$ns node]
set c0 [new Agent/Clustering]
$ns attach-agent $n0 $c0
---
*NS returns the following errors:*
---
can't read debug_: no such variable
(Object set line 1)
invoked from within
Classifier/Port set debug_
invoked from within
catch $c set $var val
invoked from within
if [catch $self cmd $args ret] {
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error error when calling class $cls: $args $...
(procedure _o59 line 2)
(SplitObject unknown line 2)
invoked from within
$agent target [[$self node] entry]
(procedure _o11 line 2)
(RtModule attach line 2)
invoked from within
$m attach $agent $port
(procedure _o10 line 4)
(Node add-target line 4)
invoked from within
$self add-target $agent $port
(procedure _o10 line 15)
(Node attach line 15)
invoked from within
$node attach $agent
(procedure _o3 line 2)
(Simulator attach-agent line 2)
invoked from within
$ns attach-agent $n0 $p0
(file clustering.tcl line 29)
root@qq-desktop:~/ns-allinone-2.30/ns-2.30/mohsen#
---
Even I can reach the data members (variables) of my newly defined agent.
When I add the code
$ns attach-agent $n0 $c0
NS returns the above mentioned error.
Does anybody know the cause of this error? Is this because of something I
didn't do or something I did wrong? I am very puzzled by this problem. Any
help would be very much appreciated.
Thanks in advance,
Mohsen Sasani
Information Technoology, Computer Networks Engineering
Shiraz University of Technology
mohn@gmail.com
[ns] GPSR implementation running out of memory
All, I ported GPSR implementation to ns-2 2.34. The examples that come with the implementation work fine. Some of my simulations that have small number of nodes or few events happening work fine too. However, when I increase the number of nodes above 100 nodes and have more events, the simulation runs for a while then aborts. I was checking the memory while running the cases that fail and found that these simulations are consume the whole memory on my machine and off course abort after that. I have 8GB of memory! The same simulations work fine with other routing protocols like AODV and the memory consumption is within limits. Does anyone know were does GPSR goes wrong and consumes the memory? and is there a fix for that? Anas
Re: [ns] GPSR implementation running out of memory
Anas, You are facing a memory leak. The effect of memory leak aggravated when you run longer simulation time, simulating larger number of nodes or both. Valgrind is good for memory leak detection. It able to show the functions and exact lines of codes that potentially causing some of the memory leaks. In case you have no experience using Valgrind, do spend some time on internet to learn how to setup and test using Valgrind, it has ample of information on this. NS2 does not have automatic garbage collection, thus warrants a manual freeing of allocated memory once an object is no longer needed. Good Luck. rgds Saravanan K On Sun, May 12, 2013 at 6:24 PM, Anas Almajali almaj...@usc.edu wrote: All, I ported GPSR implementation to ns-2 2.34. The examples that come with the implementation work fine. Some of my simulations that have small number of nodes or few events happening work fine too. However, when I increase the number of nodes above 100 nodes and have more events, the simulation runs for a while then aborts. I was checking the memory while running the cases that fail and found that these simulations are consume the whole memory on my machine and off course abort after that. I have 8GB of memory! The same simulations work fine with other routing protocols like AODV and the memory consumption is within limits. Does anyone know were does GPSR goes wrong and consumes the memory? and is there a fix for that? Anas
[ns] Extended Deadline: IEEE HEALTHCOM 2013, Lisbon, Portugal October 09-12, 2013
CALL FOR PAPERS 15th IEEE International Conference on e-Health Networking, Application Services (IEEE HEALTHCOM 2013) Lisbon, Portugal October 09-12, 2013 http://www.ieee-healthcom.org IEEE Healthcom 2013 is fully sponsored by the IEEE Communications Society. It aims at bringing together interested parties from around the world working in the health care field to exchange ideas, to discuss innovative and emerging solutions, and to develop collaborations. eHealth is defined as the cost-effective and secure use of information and communications technologies in support of health and the related fields, including health-care related services, surveillance, literature, education, knowledge, and research, both at the local site and at a distance. It will make personalised medicine possible and affordable in the near future. The adoption of eHealth technologies in medical fields creates huge opportunities yet lots of challenges still need to be resolved to build reliable, secure, and efficient networks or platforms with great flexibility. Prospective authors are cordially invited to submit their original contributions covering completed or ongoing work related to the eHealth area. The topics include but are not limited to - Biomedical and biosensors engineering - Body sensor networks and wearable sensor systems - Clinical biofeedback, decision support systems, and tools - eHealth information and network Infrastructure - eHealth for public health (including disease prevention, emergency preparedness, epidemiologic interventions) - eHealth for aging (to support quality of life for older adults, aging in place and independence) - Emerging eHealth applications - Health grid and health cloud - Health monitoring, traffic characterisation, management - ICT-enabled personal health system - Image and video processing on eHealth - Network/Communications Infrastructures and Architectures for Healthcare - New IT-enhanced Models for Healthcare delivery - Pervasive and ubiquitous computing on eHealth - Practical Applications of e-Health - Security and privacy on eHealth - Storage and Display Devices for eHealth - Telemedicine and mobile telemedicine Important dates - Paper Submission deadline (Extended):May 20, 2013 (firm) - Notification of acceptance:June 30, 2013 - Submission of camera-ready papers:August 31, 2013 PAPER SUBMISSION Perspective authors are invited to submit their papers using EDAS System at http://edas.info/newPaper.php?c=13601track=26533. A full paper should not have more than five (5) IEEE style pages including results, figures and references. Papers will be reviewed with the standard reviewing procedure (with at least 3 independent anonymous reviews). Accepted papers will be published on IEEExplore (http://ieeexplore.ieee.org/). The best accepted paper will receive the Best Paper Award. Extended version of best papers will be considered for publication on the International Journal on E-Health and Medical Communications (http://www.igi-global.com/IJEHMC) and in the Elsevier IRBM (http://www.elsevier.com/journals/irbm/1959-0318). Note: To be published in the IEEE Healthcom 2013 Conference Proceedings and IEEEXplore, an author of an accepted paper is required to register for the conference at the full (member or non-member) rate and present the paper at the conference. General Chair: Joel Rodrigues, Instituto de Telecomunicações/ University of Beira Interior, Portugal TPC Chairs: Ricardo Correia, Fac. Medicine, Univ. Porto, Portugal Christos Verikoukis, CTTC, Barcelona, Spain Operations Chairs: Maria Helena Monteiro, ISCSP, Tech. Univ. Lisbon, Portugal Rita Amorim, ISCSP, Tech. Univ. Lisbon, Portugal IEEE HEALTHCOM Steering Committee: Joel Rodrigues (Chair), IT/Univ. of Beira Interior, Portugal Tsong-Ho Wu, Industrial Tech. Research Inst., Taiwan Pradeep Ray, Univ. of New South Wales, Australia Norbert Noury, University of Lyon, France Chi-Ren Shyu, Univ. Missouri, Columbia, MO, USA Portuguese Government Liaison: Henrique Martins, Clinical Information Coordinator, Portugal Industry and Exhibition Chair: Rui Gomes, Fernando Fonseca Hospital, Portugal Industry Forum Chair: Miguel Sales Dias, Microsoft Workshop Chairs: José Neuman de Souza, Federal University of Cear, Brazil Rui Rijo, Polytechnic Inst. of Leiria, Portugal Tutorial Chairs: Jorge Sá Silva, University of Coimbra, Portugal José Carlos Nascimento, University of Minho, Portugal Panel Chair: Eric Addeo, DeVry University, USA Publicity chairs: Jaime Lloret, Univ. Politécnica de Valencia, Spain Lei Shu, Guangdong Univ. Petroc. Tech., China Aravind Kailas, Univ. North Carolina Charlotte, USA Scott Fowler, Linköping University, Sweden Communication Chair: Francisco Roxo, Catholic Univ. of Lisbon, Portugal Web Chair: Vasco Soares, Inst. for Telecom./ IPCB, Portugal
[ns] selfish node isolation
Hi All I have implemented the selfish node creation in aodv.cc . Can any body tell me how to isolate a malicious/ selfish nodes in aodv.cc function??? and it should be reflected in the printed route table. i mean the route table should avoid the particular malicious nodes... thanks in advance... -- *--- prabha*
