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master's thesis
Performanse prijenosa podataka višekanalnim modulacijskim postupcima
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. urn:nbn:hr:168:444601
Vuković, Igor
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

Cite this document

Vuković, I. (2015). Performanse prijenosa podataka višekanalnim modulacijskim postupcima (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:444601

Vuković, Igor. "Performanse prijenosa podataka višekanalnim modulacijskim postupcima." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. https://urn.nsk.hr/urn:nbn:hr:168:444601

Vuković, Igor. "Performanse prijenosa podataka višekanalnim modulacijskim postupcima." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. https://urn.nsk.hr/urn:nbn:hr:168:444601

Vuković, I. (2015). 'Performanse prijenosa podataka višekanalnim modulacijskim postupcima', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 19 December 2024, https://urn.nsk.hr/urn:nbn:hr:168:444601

Vuković I. Performanse prijenosa podataka višekanalnim modulacijskim postupcima [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2015 [cited 2024 December 19] Available at: https://urn.nsk.hr/urn:nbn:hr:168:444601

I. Vuković, "Performanse prijenosa podataka višekanalnim modulacijskim postupcima", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:168:444601

Metadata
TitlePerformanse prijenosa podataka višekanalnim modulacijskim postupcima
Title (english)Performances of data transmission by multichannel modulations
AuthorIgor Vuković
MentorAlen Bažant (mentor)
Committee memberAlen Bažant (predsjednik povjerenstva)
Committee memberMladen Kos (član povjerenstva)
Committee memberŽeljko Ilić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2015-09-21, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
OFDM je sustav prijenosa informacije kod kojeg se serijski slijed simbola dijeli na više sporijih slijedova koji se koriste za modulaciju ortogonalnih podnosioca. OFDM se koristi u mnogim praktičnim sustavima jer je pogodan za prijenos informacije u bežičnim i ožičenim medijima. Kod frekvencijski selektivnih kanala SNR znatno varira s frekvencijom. DMT je vrsta OFDM-a koja dobro iskorištava frekvencijski selektivan kanal a koristi se u ožičenim sustavima kao što je DSL. DMT koristi WFA za optimalni raspored snage po tonovima te odgovarajuću alokaciju bitova. Simulacijama je pokazano kako je poboljšanje uz WFA obrnuto proporcionalno kvaliteti kanala.
Abstract (english)
Orthogonal frequency division multiplexing (OFDM) is a transmission technique which divides the serial data stream into a number of slower streams which are used to modulate parallel orthogonal subcarriers whose bandwidth is much less than that of the total data rate. The OFDM technique is widely used in many practical system as it has many advantages in wireline and wireles communications. If the channel is frequency selective, the signal to nosie ratio of each subchannel can vary with frequency. One of the transmission schemes to overcome the frequency selectivity is discrete multi tone (DMT) which is used in wireline systems such as DSL. In a DMT system, power level of each subchannel is optimized with the water filling algorithm (WFA) so the proper bit - loading could be executed. It is shown trough a simulation that usage of WFA makes performance improvement that is inversely proportional with channel quality.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:444601
Study programmeTitle: Information and Communication Technology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije (magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije)
Type of resourceText
File originBorn digital
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Created on2018-02-06 14:29:36