Course detail

Radio Links Design

FEKT-MNRSAcad. year: 2011/2012

Radiocommunication services, exploitation of radio spectrum. Antenna parameters, link budget, conditions of radiocommunication, quality and reliability. Propagation of radio waves close to Earth surface, space and surface wave. Terrain profile and obstacle losses. Digital model of terrain, computer aided design. Service area of broadcast and TV transmitters, statistic estimate of signal level. Influence of atmosphere on radio links. Design of ionospheric links, optimization of operating frequency, field strength, fading and reliability of ionospheric communication. Microwave links. Radio-relay links, effects of fading in digital links, diversity. Passive repeaters. Mobile radio networks, cellular structures, transmission channels, operation in cellular networks, effect of terrain and buildings, fading, and multipath propagation. Propagation models for macrocells, microcells, and picocells. Indoor radiowave propagation. Ray-tracing, ray-launcing. Influence of radio waves on humans, limits of radiation, project documentation.

Language of instruction

Czech

Number of ECTS credits

6

Mode of study

Not applicable.

Guarantor

doc. Ing. Jaroslav Láčík, Ph.D.

Department

Department of Radio Electronics (UREL)

Learning outcomes of the course unit

The students become familiar with the basic kinds of radio links and networks, conditions of communication, quality and reliability of radio links, frequency planning, calculation of field strength in real terrain and urban area, methods for interference suppression, limits of radiation, design of basic kinds of radio links and networks, computer aided design, project documentation.

Prerequisites

The subject knowledge on the Bachelor´s degree level is requested.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

Projects, combine exam

Course curriculum

Radio links, their classification and structure. Frequency planning and exploitation of radio spectrum.
Electromagnetic wave, antenna parameters, link budget, conditions of radio communication in partial frequency ranges.
Propagation of radio waves close to Earth surface, space and surface wave, calculation of field strength, obstacle losses, digital model of terrain profile, link design.
Service area of broadcast- and TV- transmitters and of radio networks, CAD of service area
Influence of atmosphere on radio links.
Ionospheric links, operating frequency, field strength, fading and reliability. Design of ionospheric link.
Microwave links, conceptions, terrain profile, level diagram, fading, reliability of links.
Transmission of digital signals, quality parameters, diversity. Radio-relay links and their design, active and passive relay.
Mobile radio communication and propagation, fading, multipath propagation. Propagation models for macrocells and microcells. Influence of built up area and vegetation on propagation.
Propagation models for picocells. Indoor radiowave propagation. Link design.
Modeling of radi wave propagation by ray-tracing, and ray-launcing.
Influence of radio waves on humans, limits of radiation.
Projects of radio links.

Work placements

Not applicable.

Aims

The aim of the course is to make students familiar with the basic kinds of radio links and networks, conditions of communication, quality and reliability of radio links, frequency planning, calculation of field strength in real terrain and urban area, methods for interference suppression, limits of radiation, design of basic kinds of radio links and networks, computer aided design, project documentation.

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

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

ČERNOHORSKÝ,D. a NOVÁČEK,Z. Navrhování rádiových spojů. Skriptum FE VUT Brno, Brno 1992 (CS)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EEKR-M Master's

    branch M-EST , 1 year of study, summer semester, elective specialised

  • Programme EEKR-CZV lifelong learning

    branch EE-FLE , 1 year of study, summer semester, elective specialised

Type of course unit

 

Lecture

52 hod., optionally

Teacher / Lecturer

doc. Ing. Jaroslav Láčík, Ph.D.

Syllabus

Radio links, their classification and structure. Frequency planning.
Conditions of radiocommunication in partial frequency ranges
Propagation of radio waves, calculation of field strength, obstacle losses, digital model of terrain profile
Service area of broadcast- and TV- transmitters and of radio networks, CAD of service area
Microwave links, conceptions, terrain profile, level diagram, fading, reliability of link
Analog and digital signals transfer, quality parameters, diversity
Radio-relay links and their design, active and passive retranslating. Interference in radio-relay links.
Radio networks, organisation of communication, service area,
Cellular structures, frequency planning and operation
Service area in real terrain and urban area, models for propagation of radio waves, CAD
Ionospheric links, operating frequency, field strength, fading and reliability. Design of ionospheric link
Limits of radiation in radio networks, field strength in given sectors of radiation, hygienic limits
Projects of radio links, licence procedure

Exercise in computer lab

13 hod., compulsory

Teacher / Lecturer

doc. Ing. Jaroslav Láčík, Ph.D.

Syllabus

Terrain profile and obstacle losses calculation
Service area of TV transmitters
Microwave link design
Ionospheric link design