1. Advanced Data Communication Spring 2010

2. Due Date  March 19th, 2010

3. Synopsis  This is a preliminary project to learn a network simulator called NS2. The network simulator is a discrete-time event- driven simulator for network research, widely adopted by academia. You will create five network nodes. Three nodes (S1 to S3) are connected to node M which is in turn connected to node D. The source nodes S1 to S3 continuously send UDP packets of size L bytes to the destination node D thru the middle node M. The time interval between two consecutive packets from each source node is T msec. The link is a duplex link with R Mbps bandwidth and Z msec delay. You will collect timely bandwidth usage of each UDP connection with 1 second interval for at least 60 seconds, and compare their bandwidths. You will select three (3) different sets of simulation parameters from the following table:

4. Parameter ParametersDescription (unit)Possible values LPacket Size (byte)500, 1000, 2000 TPacket Inter-departure time (msec)5, 10, 15 RBandwidth of Links (Mbps)1, 2, 10, 50 ZDelay of Links (msec)10, 20, 30

5. Team  You will form a group of 5 persons. Each group submits ONE copy of the project report, but each member completes a “Peer Rating” form and submits it to the instructor CONFIDENTIALLY.

6. Submission  You will submit a project report that follows the IEEE conference publication format. The report includes but is not limited to  the objective,  experiment methods, and  result analysis.  All text sources will be included as appendices, containing source files (tcl files) and configuration file if exists.

7. Simulator  You need access to an NS2 simulator for all projects during this semester.  If you have a Unix account from the School or your own Linux system, you can install a recent NS2.  Unfortunately, NS2 does not natively support MS Windows system.  To MS Windows, you can install Cygwin/X and then NS2.

8. Reference  http://www.isi.edu/nsnam/ns/ http://www.isi.edu/nsnam/ns/  http://www.ece.iupui.edu/tutorials/ns2/http://www.ece.iupui.edu/tutorials/ns2/  http://x.cygwin.com/ http://x.cygwin.com/  http://www.ieee.org/web/publications/pubser vices/confpub/AuthorTools/conferenceTempl ates.html http://www.ieee.org/web/publications/pubser vices/confpub/AuthorTools/conferenceTempl ates.html