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CS6723/ EE6793 Mobile Wireless Networks

Project 02

OPNET Simulations

Distribution date: April 21, 2008, Due date: May 15, 2008 at 11:59 P.M.

Note Carefully:

Total points for this project are 100, which will be scaled down to 10 marks.

You have to submit the project via email only.

There is a 25% penalty on late submission, up to half an hour. More than half an

hour late submission will NOT be accepted, what so ever is the reason.

The subject field of your email must be proj-01-your-full-name-MAJU-reg-no ".For example, proj-01-Muhammad-Yousaf-SU04002.

Send your e-mail to the teaching assistant (muh_yousaf@yahoo.com) and make a

copy of this email to (amir_qayyum@yahoo.com). Submission to any otheraddress is not accepted.

You MUST NOT send your project to the course mailing list: it will NOT be

accepted, and you may get discredit.

Submission time is NOT the time when you e-mail your project; rather it is the

time BEFORE which we must receive your e-mail.

We encourage you to send your email two hours before the deadline ends. This is a group project. Every group would consist of two 2 students.

Combine all the files to be submitted in a single folder, compress this folder in zipformat and attach this compressed file with your email.

Only allowed compression format is .zip (no other format e.g. *.rar is allowed)

Name of the folder and the compressed file should follow the same naming

convention as the subject field of your email. Violating these naming conventions will get discredit.

Important for Cheating Cases:

Cheating is strictly prohibited. Students found involved in cheating/copying (irrespective

of doing or allowing) will be marked simply as ZERO.

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PART-1: [50 Marks]

Consider an independent BSS of IEEE 802.11 WLAN consisting of various wirelessworkstations. You have to create different scenarios by changing the following WLAN

attributes to collect the below-mentioned statistics.

Attributes to be analyzed:

i) Number of wireless nodes: 2, 10, 20.

ii) RTS threshold values: NONE, 256, 1024.

iii) Data rates: 1Mbps, 5.5Mbps, 11Mbps.iv) Physical Layer: Frequency Hopping, Direct Sequence, Infrared.

v) Large Packet Processing: Fragment, Drop.

(NOTE) To highlight the effect of every attribute being analyzed, you are supposed to

appropriately change the values of other attributes.

Statistics to Collect:

i) Global Statistics:

End-to-End delay (seconds),

Load (bits/seconds),Throughput (bits/seconds)

ii) Node Statistics:Backoff slots,

Data traffic sent (packets/seconds),Data traffic received (packets/seconds)

PART-2: [50 Marks]

Consider an infrastructure based BSS of IEEE 802.11 WLAN consisting of variouswireless workstations. BSS contains mix of nodes i.e. some of the nodes are PCF enabled

and some of the nodes are not PCF enabled. You have to create different scenarios by

changing the following WLAN attributes to collect the below-mentioned statistics.

Attributes to be analyzed:

i) Number of nodes: 10, 20, 30. (Including AP+ PCF enabled + PCF disabled)

ii) PCF Functionality: All, 30%, 50% (of total nodes)iii) Beacon Interval: 0.01, 1.0, 5.0 (seconds)

iv) CFP Interval: 0.01, 0.02, 0.05 (seconds)

v) Physical Layer: Frequency Hopping, Direct Sequence, Infrared.vi) Large Packet Processing: Fragment, Drop.

(NOTE) To highlight the effect of every attribute being analyzed, you are supposed toappropriately change the values of other attributes.

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Statistics to Collect:

i) Global Statistics:

Load (bits/seconds),Media Access Delay (seconds),

Throughput (bits/seconds)

ii) Object Statistics:

Delay (Seconds),

Retransmission Attempts (Packets),

Drop Data Packets (Packets/seconds),Control traffic sent (Bits/seconds)

Data traffic sent (packets/seconds),

Data traffic received (packets/seconds)

WHAT TO SUBMIT?

1. Main evaluation will be done on the basis of project demonstration.

2. Submit Topology diagrams.

3. Values of other attributes that you changed.4. Comparison graphs for different scenarios.

5. Comments on the output of graphs.

6. Readme.txt file explaining your design/strategy/assumptions/problem faced/howyou solved those problems/names, parameters to run the simulation/etc

Put all these files in a single folder; compress this folder in .zip format; of course with

names of folder/zip file according to the naming convention mentioned above.