Cryptography and system security (ETF TKO KSS 4880)

General information

Module title

Cryptography and system security

Module code

ETF TKO KSS 4880

Study

ETF-B

Department

Telecommunications

Year

1

Semester

2

Module type

Mandatory

ECTS

7

Hours

80

Lectures

38

Exercises

28

Tutorials

14

Module goal - Knowledge and skill to be achieved by students
  The goal of the course is to enable students to master necessary theoretical and practical (laboratory) knowledge in application of simulations in design of telecommunications systems processes. The basis is the Monte Carlo simulation method. The modeling aspects of telecommunications systems are treated as well as, transceiver and receiver tract, and telecommunications channels. As a special contributions to simulations in predicting system performances of telecommunications systems the models of extraction of performances during simulations are also considered.

Syllabus
  Simulation modeling: meaning and role of simulation, simulation methods. Application of simulations in telecommunications systems design processes. Presentation of signals and systems in simulations. Modeling and simulation of linear time independent systems. Modeling and simulation of linear time dependent systems. Monte Carlo simulation method. Principles of Monte Carlo simulation. Monte Carlo simulation and generation of random numbers: Generating independent random sequence. Modeling telecommunications systems: transmitter and receiver tract. Types and models of telecommunications channels. Monte Carlo method and extraction of performances during simulation. Trust interval and binomial distribution. Poisson approximation. Normal approximation. Mean value and variance of the MC estimator. Effect of dependent errors. Sequential evaluation. Evaluation of interval measure: Monte Carlo method and calculation of parameters of deterministic process. Jake’s spectral power density, Gaussian spectral power density.

Literature
Recommended
Additional

Didactic methods
  Lectures are performed directly in an aula. Lectures are followed by solution of problems performed by the lecturer with goal of enabling students to master mathematical tools and methods introduced during lectures, on which the analyzed simulation models of telecommunications systems are based. <br>
During tutorials, under tutor guidance and supervision, other examples and problems will be solved, as well as exam problems, and the ideas for solving of the problems presented during exercises are also presented. In this way even during the execution of the curriculum it will be possible to continually check the degree of preparedness of students to approach the final exam. As part of laboratory exercises performed using MATLAB simulator students will be introduced with basic models and features of transmitter and receiver tract in telecommunications system, and with processes in basic models of the radio channel and channels on physical media. During the course students will also independently develop simple applications in this field. <br>

Exams
  During the course students earn points according to the following system: <br>
- Attending classes and tutorials: 10 points, student with more then three absences from lectures and/or tutorials can not get these points. <br>
- Home assignments and laboratory exercises bring maximum of 10 points, assuming solving 5 to 10 assignments equally distributed throughout the semester. <br>
- Partial exams: two partial exams; each positively evaluated partial exam 20 points. Each partial exam lasts 90 minutes and it is structured as follows: <br>
- Answering to simple questions with goal of testing whether student has basic theoretical knowledge; students with correct answers to all such questions earn 5 points; <br>
- Solving an open answer problem, with correct answer bringing 10 points; <br>
- Solving problems with multiple answers offered, on of answers being the correct one; students with correct answers to all such questions earn 5 points; <br>
Students who earned less then 20 points during the semester must retake the course. Students who earned 40 or more points during the semester will take a final exam; This exam consists of discussion of problems from partial exams, home assignments and answers to simple questions related to course topics. <br>
Final oral exam provides maximum of 40 points. In order to get positive final grade, students must earn minimum of 20 points in this exam. Student failing to earn the minimum must take the makeup oral exam. Student who earned 20 or more, and less then 40 points during the semester, will have to take the makeup exam. <br>
The makeup exam is organized in the following manner: <br>
- Written part structured similarly to partial written exam, during which students solve problems in topics they failed on partial exams (less then 10 points); <br>
- Oral part structured the same as the oral part of the final exam. <br>
Only students who managed to earn total score of 40 or more points in written part of the makeup exam will be allowed to take the oral part of the makeup exam, where the mentioned score consists of points earned through attending lectures, solving home assignments, passing partial exams and passing the written part of makeup exam. Oral makeup exam provides maximum of 40 points. In order to achieve positive final grade students must earn minimum of 20 points in this exam. Student failing to earn the minimum will have to retake the course. Oral makeup exam gives maximum of 40 points. In order to achieve positive final grade students must achieve minimum of 20 points in this exam. Student failing to achieve the minimum will have to re-enroll for this course. <br>

Aditional notes
  1. During the written part of the exam students are allowed to use a list of formulas prepared by lecturers, which may be of use in solving problems. It is not allowed to use other notes, books, cell phones or other electronic devices. <br>
2. Problems, which students must solve during the exam, are of the same type solved during the lectures and tutorials. <br>