Course detail

Modern digital wireless communication

FEKT-DRE2AAcad. year: 2020/2021

Introduction
Content. Promising methods of wireless communications. MIMO systems.
Communication Signals Theory
Sets of signals, mapping. Signal spaces. Orthonormal systems and their applications. Orthogonal spreading sequences. Orthogonality in UWB systems. Discrete-time random processes, digital simulations, complex random processes. Pseudo-random spreading sequences.
Spread Spectrum Digital Communications
Direct sequence spread spectrum signals. Optimal reception in AWGN channels, robustness, frequency diversity, multipath channel, Rake receiver, acquisition. Frequency hopping (SFH, FFH), time hopping.
Acquisition methods. Orthogonal frequency division multiplexing (OFDM). Code division multiplexing.
Code-division Multiple Access (CDMA), signatures, matched filter, chip matched filter. Multi-user interference (MUI), optimal detector, near-far problem.
Main interference in multi-user environment, asymptotic multi-user efficiency, MMSE detector, adaptive detectors, necessary a prior information and synchronization.
Wireless-Signal Processing
Synchronization, carrier recovery, phase estimation, Phase-locked loop (PLL), clock recovery, maximum likelihood (ML) algorithm, delay-locked loop (DLL).
Equalization, inter-symbol interference (ISI), zero forcing (ZF) equalizers, minimum mean square error (MMSE) equalizers, least squares (LS) equalizers, decision feedback (DF) equalizers, maximum likelihood sequence (MLSE) receivers.
Mobile Communications
Coexistence of mobile systems (Bluetooth, WiFi, UMTS, GSM). System WiMAX (IEEE 802.16), MATLAB modeling, solving the physical layer. Design of the system using signal level and a frequency plan.
Flarion (IEEE 802.20), description. FLASH OFDM, Cell interference averaging. Flexband, description.
Satellite Communications Tools and Methods
Satellite communication characteristics and methods. Noise, distances. Movements of satellites. Satellite systems architectures.
Free-Space Optical Communications.
Elements. Atmosphere. Stationary and statistical models. Reliability and availability. Selected applications.

Language of instruction

English

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

prof. Ing. Milan Sigmund, CSc.

Department

Department of Radio Electronics (UREL)

Learning outcomes of the course unit

Deeper knowledges of wirelew-signal theory, spread spectrum systems, mobile systems, satellite systems and free space communications.

Prerequisites

Signal theory. Wireless communications theory.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Techning methods include lectures. Students have to write a single project/assignment during the course.

Assesment methods and criteria linked to learning outcomes

Requirements for completion of a course are specified by a regulation issued by the lecturer responsible for the course and updated for every.

Course curriculum

Introduction
Communication Signals Theory
Spread Spectrum Digital Communications
Wireless-Signal Processing
Mobile Communications
Satellite Communications Tools and Methods
Free-Space Optical Communications.

Work placements

Not applicable.

Aims

The aim is to inform students about new methods of wireless communications.

Specification of controlled education, way of implementation and compensation for absences

The education is optional.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

B. Vucetic and J. Yuan, Space-Time Coding. John Wiley & Sons, New York, 2003. (EN)
J. G. Proakis, Digital communications. 4-th ed. McGraw Hill, New York, 2001. (EN)
S. G. Glisic, Adaptive WCDMA. Theory and Pracice.John Wiley & Sons, New York, 2002. (EN)

Type of course unit

Seminar

39 hod., optionally

Teacher / Lecturer

prof. Ing. Milan Sigmund, CSc.

Syllabus

Direct sequence spread spectrum signals. Optimal reception in AWGN channels, robustness, frequency diversity, multipath channel, Rake receiver, acquisition. Frequency hopping (SFH, FFH), time hopping.
Acquisition methods. Orthogonal frequency division multiplexing (OFDM). Code division multiplexing.
Code-division Multiple Access (CDMA), signatures, matched filter, chip matched filter. Multi-user interference (MUI), optimal detector, near-far problem.
Main interference in multi-user environment, asymptotic multi-user efficiency, MMSE detector, adaptive detectors, necessary a prior information and synchronization.
Wireless-Signal Processing
Synchronization, carrier recovery, phase estimation, Phase-locked loop (PLL), clock recovery, maximum likelihood (ML) algorithm, delay-locked loop (DLL).
Equalization, inter-symbol interference (ISI), zero forcing (ZF) equalizers, minimum mean square error (MMSE) equalizers, least squares (LS) equalizers, decision feedback (DF) equalizers, maximum likelihood sequence (MLSE) receivers.
Mobile Communications
Coexistence of mobile systems (Bluetooth, WiFi, UMTS, GSM). System WiMAX (IEEE 802.16), MATLAB modeling, solving the physical layer. Design of the system using signal level and a frequency plan.
Flarion (IEEE 802.20), description. FLASH OFDM, Cell interference averaging. Flexband, description.
Satellite Communications Tools and Methods
Satellite communication characteristics and methods. Noise, distances. Movements of satellites. Satellite systems architectures.
Free-Space Optical Communications.
Elements. Atmosphere. Stationary and statistical models. Reliability and availability. Selected applications.

VUT

Faculties

University Institutes

Parts

Modern digital wireless communication

Type of course unit