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Graduate courses

Departments' graduate courses for PhD-students.

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Syllabus for

Academic year
ESS036 - Wireless communications
 
Owner: EMAST
6,0 Credits (ECTS 9)
Grading: TH - Five, Four, Three, Not passed
Level: D
Department: 32 - ELECTRICAL ENGINEERING


Teaching language: English

Course module   Credit distribution   Examination dates
Sp1 Sp2 Sp3 Sp4 No Sp
0101 Examination 6,0c Grading: TH   3,0c 3,0c   28 May 2007 am V,  Contact examiner

In programs

TELTA ELECTRICAL ENGINEERING, Year 4 (elective)
TITEA SOFTWARE ENGINEERING, Year 4 (elective)
TITEA SOFTWARE ENGINEERING, Year 3 (elective)
TTFYA ENGINEERING PHYSICS, Year 4 (elective)
EMAST MSc PROGR. IN DIGITAL COMMUNICATION SYSTEMS AND TECHNOLOGY, Year 1 (compulsory)
COMAS MSc PROGRAMME IN HARDWARE FOR WIRELESS COMMUNICATIONS, Year 1 (elective)
TDATA COMPUTER SCIENCE AND ENGINEERING - Communications System, Year 4 (elective)
TDATA COMPUTER SCIENCE AND ENGINEERING - Embedded computer systems engineering, Year 4 (elective)

Examiner:

Professor  Arne Svensson



Eligibility:

For single subject courses within Chalmers programmes the same eligibility requirements apply, as to the programme(s) that the course is part of.

Course specific prerequisites

Basic knowledge in digital communications similar to what is given in Digital Communications (ESS140) is required. It is also an advantage to have some basic knowledge of stochastic processes.

Aim

The course aims to give knowledge of some of the most fundamental methods used in the design of radio systems. It also aims at understanding how performance is influenced by the used algorithms. A good knowledge of the properties of the radio channel is the condition for this. A third aim is the understanding of how the algorithms work together in a complete system for radio communication and the knowledge of methods for analysing this.

Content

Transmission of digital information is today very common. Every time you use a cash dispenser e.g., you use a communications link between the dispenser and the bank. The most widely used communication systems are the networks for public telephony and mobile (cellular) telephony, and the Internet. The most common medium for transmission is cable, but the use of radio waves increases due to the in­creased flexibility of avoiding cables. In many cases it is also cheaper to deploy and maintain wireless systems. The challenge with a radio sys­tem is the need for bandwidth, which is in conflict with the need for high speed applications such as Internet browsing.
A system for radio communication inclu­des many different components like protocols, source coding, chan­nel coding, modulation methods, multiple access schemes, equalization, decoding, and fre­quency assignment. In order to understand and analyse a radio system for communication it is also necessary to know some of the inherent properties of the transmission medium.

Contents

  • Wireless communication systems; services, systems, frequency planning.
  • Cellular radio; components, architecture, measures of performance, demands of performance.
  • Path loss models; attenuation, coverage, statistical models, link budget.
  • Multipath propagation; time dispersion, doppler, coherence bandwidth, fading, fading simulation.
  • Digital modulation; constant amplitude modulation, spread spectrum methods, channel coding, interleaving.
  • Diversity; antenna separation, combinational methods, SNR performance, BER, RAKE receivers.
  • Channel access methods; FDMA, TDMA, CDMA, duplex, packet switching, capacity.
  • CDMA systems: direct-sequence spread spectrum, spreading codes, transmitter design, receiver design, bit error probability, near-far effect, capacity, Rake receiver, soft handover, power control, frequency-hopping.
  • Standardized Systems; GSM, Qualcomm CDMA, WCDMA.

Organisation

Lectures

Lectures are given on on the topics given under contents.

Projects

The course includes three projects to be done in groups of 2 students.

  • In the first project you will study path loss, log-normal shadowing and perform some performance calculations. These are tasks similar to what a designer of a cellular radio system has to perform. You need MATLAB or similar software for numerical calculations to do the project.

  • The second project is a continuation of the laboratory exercise. Here you will study the performance of a simple radio link over a fading channel. This is a task very similar to what radio link designers are doing. You should use the code you developed in the laboratory exercise for the fading processes. You need MATLAB or similar software (since you used Matlab in the laboratory exercise, it is preferable if you use that also now) for numerical calculations to do the project.

  • In the third project you will study a DS-CDMA system and its performance on various channel including a frequency selective fading channels. Thus, this project involves a more complex modulation scheme as compared to project 2. DS-CDMA is used in several of the 3G standards for cellular communications. You need MATLAB or similar software to do the project.


Laborative exercises

The course contains one lab of 4 hours. It is devoted to the construction of a channel simulator using MATLAB. The performance of the simulator is analysed and compared with the theoretical analysis presented during the lectures. The resulting code is also used for the first project.

Latest details

The details may change, see updated information on the course home page for latest information.

Literature

Currently it is Wireless Communications: Principles and Practice, 2/ed by Theodore S. Rappaport, Prentice Hall, ISBN 0-13-042232-0, and selected papers. The details may change, see updated information on the course home page for latest information.

Examination

Accepted project reports for all projects, and accepted lab are necessary for a grade. To get a higher grade than 3 (ECTS E), a written exam must be done. Bonus points for the exam can be obtained on the projects and a mid-course exam. For the latest details see the course home page.


Published: Wed 26 Feb 2020.