Mobile Communications

Course Description

The observation of radiocommunication phenomena, especially in mobile systems, analysis of events in radio channel during propagation in ideal and real conditions. Understanding of more representative mobile systems with survey through mobile generations.

General Competencies

Good understanding of communication systems with deeper insight of particular phenomena from the electromagnetic waves propagation theory, processing of stochastic signals, evaluation of modulation methods and signal detection. Theoretical basic comprehension of physical system phenomena, not reducing the system knowledge only on general block view.

Learning Outcomes

  1. 1. Introduction with the basic terms of mobile communications along with the special emphasis on wireless interface. Student is gaining knowledge of all phenomenons that are affecting on the quality of the transmission of information with the radio channel.
  2. 2. Student can apply the knowledge from the theory of electromagnetic waves on understanding of the phenomenons inside of the radio channel and connect them with the technical solutions of certain mobile systems towards quality assurance for all levels of services.
  3. 3. Knowledge of mobile communications basics prior has application in further process of learning and solving particular examples.
  4. 4. Students can, based on the knowledge of channel response in time or frequency domain, analyse behaviour of the system for certain type of information which is transferred through the channel. It means that based on impulse response you can conclude whether it is about narrowband or broadband channel.
  5. 5. Because it is a elementary course, which gives an overview of the phenomenons, it isn't estimated that the students can be able to suggest some plan for solving the particular problems.
  6. 6.With the acquirement from the course student can reach cognition about solvability or unsolvability of particular problems in mobile communications.

Forms of Teaching

Lectures

Lectures are held with the help of a power-point presentation with explanations on the blackboard. Lectures are available in electronic format on the course website.

Exams

The assessment is carried out through two written exams (one mid-term and final exam) and final oral examination.

Exercises

Numerical examples are an integral part of the course.

Experimental Exercises

During the course are provided three demonstration exercises. At the end of each exercise, test activities carried out, checking understanding of the material presented.

Consultations

Permanent consultation entire whole semester.

Other

During the semester, one homewor is provided with concrete numerical problems from the course.

Other Forms of Group and Self Study

During the semester several projects are planned from ​​the course topics. Intention is to solve complex tasks, often with the use of computers and software simulations. Each project would be dealt with smaller groups of students.

Grading Method

Continuous Assessment Exam
Type Threshold Percent of Grade Comment: Percent of Grade
Laboratory Exercises 0 % 6 % 0 % 0 %
Homeworks 0 % 8 % 0 % 0 %
Mid Term Exam: Written 0 % 26 % 0 %
Final Exam: Written 0 % 40 %
Final Exam: Oral 20 %
Exam: Written 0 % 60 %
Exam: Oral 40 %
Comment:

Oral exam has 4 main parts (one question from every part). It is necessary to collect 40% from every part for passing exam.

Week by Week Schedule

  1. Signals in radiocommunications, deterministic and random. Signals in time and frequency domain, signal spectrum, noise. Survey of characterististics mobile systems first, second and third generation.
  2. Radio channel, channel characteristics. Antennas for base and mobile stations.
  3. Signal propagation loss, radio wave reflection, two ray model. Wave difraction, Fresnel zone. Propagation loss models survey.
  4. Fading, small and large scale fading statistics. Multipath in mobile systems, mobile station movement, Doppler shift. Radio-channel multipath effects, inter-symbol interference.
  5. Multiple access in mobile systems, FDD and TDD communication mode. Cell structure, cell clusters and frequency reuse principle. Handover, handover types, umbrella cell.
  6. Cochannel interference, adjacent channel interference, cell sectorization. System capacity, cell splitting, channel allocation methods. Reducing signal fading influence, diversity.
  7. Reducing signal fading influence, diversity. TDMA access characteristics, digital signal equalization. Specific modulations in mobile systems.
  8. Specific modulations in mobile systems. Mobile systems second generation, beginnings and common characteristics of GSM system.
  9. Architecture of GSM system, characteristics of physical layer, burst groups in GSM.
  10. Speech coding, source information coding, interleaving, logical channels. Down- and uplink simulation in GSM system.
  11. Migration toward third generation of mobile systems, GPRS and EDGE. Picocellular systems, WLL and DECT.
  12. Private trunked systems, TETRA. Indoor nomadic communications survey.
  13. Megacells, mobile satellite systems, characteristics, significant mobile satellite systems.
  14. Spread spectrum systems fundamentals, CDMA access. 1 Third generation mobile system main characteristics, capacity, soft handover.
  15. Efficiency of second and third generation comparison, beginning of fourth mobile generation. Introduction to mobile system planing, planing tools, examples.

Study Programmes

Electronic and Computer Engineering -> Electrical Engineering and Information Technology (Module)

Electronics -> Electrical Engineering and Information Technology (Module)

Wireless Technologies -> Electrical Engineering and Information Technology (Module)

Information Processing -> Computing (Module)

Computer Engineering -> Computing (Module)

Literature

Zentner E. (2001.), Antene i radiosustavi, Graphis
P. Mohana Shankar (2002.), Introduction to Wireless Systems, John Wiley & Sons
Theodore S. Rappaport (2001.), Wireless Communicatios, Principles and Practice, Prentice Hall
Andreas F. Molisch (2011.), Wireless Communications, Sec.ed., John Wiley & Sons Ltd.

Grading System

4 ECTS
L1 English Level
L1 e-Learning
45 Lecturers
0 Exercises
15 Laboratory exercises

Grading

90 Excellent
80 Very Good
65 Good
50 Acceptable