CprE 537X Wireless Network Security Study Guide for the Final Exam

CprE 537X Wireless Network Security
Study Guide for the Final Exam
The exam will be made up questions from the following lecture material. At the end of the
lecture material are some example questions. If you know all of this material, you will write a
perfect exam. The exam will be open book and open notes. The purpose of giving a study guide
and exam in this format is to have you study the question list and develop your own answers.
Therefore, the answers to these questions will not be provided. Be sure to read our book and
look up answers on the web.
Lecture Outline for Final Exam
Lecture 20
* Denial of Service (DoS)
o Deny or disrupt service
o Total, partial, none
o Wireless systems
+ Jamming
+ Spoofing
+ ECCM for Jamming
* Near-Far problem with jammer (understand what the equations mean)
Lecture 22
GIS in wireless security (be able to discuss why GIS is important and how we use it)
* Roll of GIS in Wireless Security
* What is GIS?
o Map database
o Data overlay
o Position-location
o System model
* Attack-Defend Scenario
o GIS system
o Position-Location system
o Neutralization system
Lecture 24
Signal model for wireless signals. Know these equations and the meaning of all the terms in the
equation.
Quadrature form of the signal
Envelope-phase form of the signal

Lecture 25
Organizing bits and mapping them to a(t) and b( t) for creating a wireless signal. Study how the
waveform symbols relate to the bits
Lecture 26
a(t) and b(t) waveforms (electrical pulses ), be able to draw them and explain how they relate to
the bits.
SHANNON’S CHANNEL CAPACITY THEOREM
study this and be able to work a problem. You will need to know logarithms.
Lecture 27
How is channel capacity optimized?
Explain the concept of a signal constellation and how it relates to bits and symbols.
Lecture 28-29
Modeling noise and interference with quadrature signals. Be able to explain the equations and
what they mean. Be able to draw a vector diagram of the I-Q signals constellation.
Lectures 30-33
Write a paragraph describing the HONEYNET Project
Write a paragraph describing the DILON Project
Write a paragraph describing WAR DRIVING
Write a paragraph describing ANTENNAS
Lecture 34-38
Be able to describe the multiple access methods and be able to draw a diagram and/or give an
equation.
FDMA, TDMA, CDMA, SDMA
Be able to explain and use the equations for CDMA
* DSSS for Code Division Multiple Access
o Regular receiver plus correlator
o Equations modeling correlation
o Multi-User interference from many stations
o Multi-User noise model
* CDMA math model
o multi-user interference model
o Jamming model

o jamming margin (jamming gain)
Lecture 39
Mobile Ad Hoc Networking (be able to describe the issues we discussed)
Lecture 40
Matrix model for mobile ad hoc networking
Some Example Questions and Topics for Final Exam
* These example questions are taken from the lectures. I may ask the same question in a slightly
different way. Some topic areas for questions below may overlap. There may not be an example
question for every topic that may be on the exam.
Describe denial-of-service (DoS) for a wireless system.
Describe the near-far problem in wireless using the terms defined in lecture.
What is the role of GIS in wireless network security. Write a complete description of the ways
that GIS can be used.
What is GIS?
Give an example of the Time-Frequency model for FHSS. Use a diagram in your description.
Describe why position-location is such a big issue in wireless.
Write a definition for "multiple-access" as it applies to a wireless system.
Completely describe the time domain representation of a wireless signal.
What is a typical signal constellation for a wireless signal? Draw a diagram to illustrate your
definition.
What is the I/Q phasor domain representation of a signal in the time domain.
Define Shannon's channel capacity theorem.
Calculate the capacity of a channel given the channel parameters.
Write a description for an antenna and give an example of its radiation pattern. Include a

description of the beam power pattern and antenna gain.
Write a complete description of a honeynet.
Write a complete description of DILON.
Write a complete description of war driving.
Write the model for a DSSS signal out of a radio transmitter. Define each variable or parameter
in the equation.
Write a complete description of a correlation receiver, including the basic equations that describe
how it works.
Write a complete description of multiuser interference for a DSSS system.
How is the jammer affected by the correlation process in a DSSS system? Use equations and/or
plots in your description.
Draw the spectrum of a DSSS signal with its equivalent narrowband signal and describe jamming
margin for the system.
What is a mobile ad hoc network?
What are the individual functions of a node in a mobile ad hoc network?
Describe the connection matrix for a mobile ad hoc network.