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Infocommunication

Infokommunikáció
A tantárgyleírás hatályossága
Hatályosság kezdete:
2026. March 21.
Hatályosság vége:
—
Subject name (Hungarian, English)
Infokommunikáció
Infocommunication
Subject code BMEVITMA301
Subject type —
Training Level —
Course types and hours (weekly/semester)
Course type lecture tutorial laboratory
hours (weekly) 3 2 0
type (linked/independent) — derived course —
Assessment type vizsga
Credits 5
Subject coordinator
Biró József
position: egyetemi tanár
Responsible department
Távközlési és Mesterséges Intelligencia Tanszék
Faculty Villamosmérnöki és Informatikai Kar
Subject website http://www.hit.bme.hu/~pfliegel/infocomm/
Primary curriculum type —
Direct prerequisites – Strong prerequisite none
Direct prerequisites – Weak prerequisite none
Direct prerequisites – Parallel prerequisite none
Direct prerequisites – Milestone prerequisite none
Direct prerequisites – Exclusion none

Objectives

Programme

1)     Stochastic processes. Parameters, classification, operations on processes.

2)     Sampling. Spectrum of a Sampled Signal. Narrow Band Signal Sampling.

3)     Signal Reconstruction from Samples. Shanon Theorem.

4)     Linear and Nonlinear Quantization. Quantization Error and Noise. PCM signal.

5)     Physical Properties of Sound. Physiological Properties of Hearing.

6)     Physical properties of Light. Physiological Properties of Vision.

7)     Information contents of still and moving images.

8)     Construction of metal cables (aerial cable, flat cable, UTP, coaxial cable) and their parameters (specific attenuation and phase, propagation delay and velocity.

9)     Construction of optical fiber cable types (SI, GI, SM) and their parameters (NA, modal dispersion, chromatic dispersion.

10)  Hybrid, two and four-wire repeater. The loop stability issue. Near and far end crosstalk.

11)  Wave Propagation Modes I. Line-of-sight, multipath, and surface wave propagation.

12)  Wave Propagation Modes II. Refraction, diffraction, tropospherical scatter, ionospherical propagation.

13)  AMDSB, AMDSB/SC, AMSSB. Spectrum, representations, demodulation.

14)  Analog Phase and Frequency Modulation. Bandwidth, demodulation.

15)  Baseband Digital Modulation. PAM. Probability of Error.

16)  Matched Filters. Inter-symbol Interference. Nyquist criterium

17)  Digital Carrieer Modulations. ASK, PSK, FSK. Time domain repr., spectrum.

18)  M-ary PSK. Constellation diagram. Bandwidth and power comparison to BPSK.

19)  QAM, a and q components. QAM modulator and demodulator. Carrier recovery.

20)  Channel Allocation Methods (FDM, TDM). Voice channel multiplexing.

21)  Random TDMA procedures: Roll-call polling, Hub poling, token ring.

22)  Random TDMA procedures: pure and slotted Aloha, carrier sensing multiple access.

23)  Spread Spectrum Multiple Access: CDMA, FHMA, slow and fast freq. hopping

24)  Terrestrial and Satellite P-Point Communication. Transmitter, transponder, receiver.

25)  Mobile Operational Modes: Simplex, Half Duplex, Mobile Relay, Full Duplex.

26)  Mobile Propagation Features: Multipath propagation, Rayleigh fading, Doppler effect.

27)  GSM Channel allocation: uplink, downlink, FDMA/TDMA

28)  GSM Network Structure. BSS, BSC, MSC, HLR, VLR, EIR, OMC.

29)  GSM area coverage, clusters, S/I ratio

Basic goal of the „Infocommunication” subject is to present specific terms, procedures, problems and solutions used in telecommunications. The subject strives to give solid basis of the most important terms and procedures to support further studies of related orientations. For all future electroengineers the subject provides basic knowledge for the forthcoming studies, whatever specialization is chosen by the student. Both the lectures and the seminars aim to teach the students so that they not only understand but are able to apply the known methods, procedures, e.t.c., on their own. On the other hand, it is also important to point out the trends and innovations of the infocommunication technologies so that the students could be able understand them with a little individual effort.

Learning outcomes

Ez a tantárgy a KKK rendeletben meghatározott, következő kompetenciák fejlesztését szolgálja:

Knowledge

No learning outcomes recorded.

Skills

No learning outcomes recorded.

Attitudes

No learning outcomes recorded.

Autonomy and responsibility

No learning outcomes recorded.

Oktatási módszertan

Theoretical basis given on lectures, 3 hours/week. Practical examples and numerical problems are discussed on seminars, 2 hours/week.

Tanulástámogató anyagok

Online források
M. Schwatz, Information Transmission, Modulation, and Noise, McGraw Hill, 1970.; S. Haykin, Digital Communications, Wiley, 1988.; S. Haykin, Communication Systems, Wiley, 2001.; J. G. Proakis, M. Salehi, Fundamentals of Communication Systems, Pearson Prentice Hall, 2005.; Goff Hill (szerk.), The Cable and Telecommunications Professionals’ Reference, Elsevier, Focal Press, 2007 (3rd edition).; John C. Bellamy, Digital Telephony, a Wiley Interscience Publication, 2000.; Behrouz A. Forouzan, Data Communications and Networking, McGraw-Hill, 2007.

Recommended preliminary knowledge for completing the subject

Knowledge type competencies
(azon előzetes ismeretek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
BSc level mathematics, physics and 'signals and systems'
Skill type competencies
(azon előzetes képességek és készségek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
nincs
Recommended (non-compulsory) preliminary competencies
(azon ajánlott (nem kötelező) előzetesen megszerzendő kompetenciák összessége, amelyek jelentősen hozzájárulnak a tantárgy eredményes teljesítéséhez)
BSc level mathematics, physics and 'signals and systems'
General rules
Requirements: One midterm test on the 11th week. Exam: same form as the midterm test, i.e. students have to solve 3 numerical examples, write one essay on topic discussed on the lecture and give short explanation of 10 keywords. Additional possibilities: Those who failed the midterm test, have to write a complementary test on the 13th week or (and if failed again) on the 1st exam (in the latter case from the whole topics). Signature given to those who passed one of the tests. As commonly, those who fail the exam have right for one repeated exam and one "dean's chance".
Assessment methods
In-term assessments

No detailed assessments provided.

Weight of in-term assessments

No weights provided.

Exam-period assessments

No detailed assessments provided.

Weight of exam elements

No weights provided.

Grade calculation

No grade thresholds provided.

Attendance requirements

No attendance requirements provided.

Rules for retake and resubmission

Not provided.

Short description

Not provided.

Detailed description

Not provided.

Recommended courses
Signals and Systems
Workload to complete the subject

No workload breakdown provided.

Validity of subject requirements
Requirements valid from:
—
Requirements valid until:
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Curriculum placement

No curriculum placements recorded for this subject version.