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Coexistence Between Lte And Lora Systems In The 24 Ghz Ism Band
Potočňak, Martin
This work deals with the study of coexistence scenarios that can occur between wireless systems LTE and LoRa in the 2.4 GHz ISM band. For this purpose an appropriate measurement setup is proposed and realized. The proposed concept enables to provide automatic measurements of the considered coexistence scenarios. It is achieved by the connection of the measurement devices with a switch, a personal computer (PC) and software MATLAB. Functionality of the realized measurement setup is verified by experimental measurements.
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Coexistence Between Dvb-T2 And Lte Systems In The 800 Mhz Band – A Measurement Methodology
Walach, Dominik
This article deals with the study of coexistence between DVB-T2 and LTE systems. Coexistence scenario between DVB-T2 and LTE systems in the 800 MHz UHF band is defined. Next, a laboratory workplace is realized, and a measurement methodology is proposed. Its functionality is verified by experimental measurements. The proposed concept also facilitates to test sensitivity of DVB-T2 receivers (set-top-boxes) against interfering LTE signals.
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Measurement and analysis of the DAB system
Kaštánek, Petr ; Kufa, Jan (referee) ; Polák, Ladislav (advisor)
This thesis deals with the measurement and analysis the performance of the Digital Audio Broadcasting (DAB) system. Theoretical part of the work contains a brief description of the signal processing chain of DAB. Attention is devoted to physical layer (PHY). In the experimental part of the work is designed and implemented laboratory measuring workplace for reception, processing and evaluation of DAB signal. The RTL2832U software defined radio (SDR) is used as a receiver of the DAB signal. The functionality of the proposed concept is verified by a detailed measurement.
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Laboratory workplace for measurement of DVB-T2 MISO broadcasting
Bárta, Vojtěch ; Kratochvíl, Tomáš (referee) ; Polák, Ladislav (advisor)
This bachelor thesis deals with measurement and analysis of DVB-T2 MISO broadcasts. The theoretical part of the thesis describes the broadcasting chain of the DVB-T2 system at the level of the physical layers. Attention is paid to both SISO and MISO transmit modes. In the experimental part of the work is to design a measuring workplace for monitoring and analysis of DVB-T2 MISO transmission in laboratory conditions. The functionality of the proposed concept and chosen measuring methodology was verified by a set of experimental measurements.
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Coexistence of LoRa and Wi-Fi in the RF band 2.4 GHz
Kaučiarik, Filip ; Miloš, Jiří (referee) ; Polák, Ladislav (advisor)
Diplomová práca sa zaoberá štúdiom koexistencie, ktorá môže nastať medzi bezdrôtovými komunikačnými systémami LoRa a Wi-Fi v bezlicenčnom ISM pásme 2,4 GHz. V teoretickej časti práce sú stručne popísané fyzické vrstvy obidvoch systémov. Následne sú definované spoločné frekvenčné pásma a koexistenčné scenáre, ktoré môžu vzniknúť medzi uvažovanými systémami v spoločnom rádiofrekvenčnom (RF) pásme. V experimentálnej časti práce je prezentované laboratórne meracie pracovisko, ktoré bolo navrhnuté na meranie rôznych koexistenčných scenárov medzi technológiou LoRa a Wi-Fi. Funkčnosť navrhnutej koncepcie je overená experimentálnym meraním. Výsledky meraní sú detailne komentované a prezentované. Je navrhnutá laboratórna úloha a vzorový protokol pre vzdelávacie účely v Laboratóriu Mobilných a Bezdrôtových komunikácií.
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Coexistence of LTE and LoRa in the 2.4 GHz ISM band
Potočňak, Martin ; Staněk, Miroslav (referee) ; Polák, Ladislav (advisor)
This diploma thesis deals with the study and measurement of coexistence scenarios that can occur between the LTE and LoRa systems in the unlicensed ISM band 2.4 GHz. A common radio frequency band in which LTE and LoRa systems can coexist is defined. An appropriate laboratory measurement is proposed and realized, allowing automatized measurement of the defined coexistence scenarios. For this purpose, a personal computer, professional measurement equipment and software MATLAB are utilized. Functionality of the proposed concept is verified by extensive measurements. The obtained results are graphically shown and discussed in detail.
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Coexistence of DVB-T2 and LTE in the 800 MHz band
Walach, Dominik ; Miloš, Jiří (referee) ; Polák, Ladislav (advisor)
This bachelor thesis deals with the study and evaluation of coexistence scenarios which can occur between DVB-T2 and LTE systems in the UHF band 800 MHz Both DVB-T2 and LTE systems are briefly described, and their common frequency bands are defined. An appropriate laboratory workplace is proposed and realized for the measurement, analysis and evaluation of the DVB-T2 and LTE coexistence scenarios. These systems work in adjacent or even in the same frequency bands. Thereby these systems can coexist, and different coexistence scenarios can occur.
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Coexistence of wireless communication systems and LTE in the ISM band
Mikláš, Michal ; Kratochvíl, Tomáš (referee) ; Polák, Ladislav (advisor)
This bachelor thesis deals with a definition, description and measurement of coexistence scenarios which can occur between LTE and WLAN (technology IEEE 802.11xx) wireless communication systems in the ISM band. Based on the common radio frequency (RF) bands, used by these systems, different coexistence scenarios are defined. Appropriate measurement testbed and method are proposed to measure coexistence between LTE and WLAN systems. Functionality of the proposed measurement testbed has been proved and extensive measurement of previously defined coexistence scenarios has been done. The obtained results are evaluated in details.
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Co-existence of the still used and upcoming digital terrestrial television and mobile communication services
Plaisner, Denis ; Kratochvíl, Tomáš (referee) ; Polák, Ladislav (advisor)
This work deals with exploring, measuring and evaluation of possible coexistence scenarios between terrestrial digital TV (DVB-T/HT2) and mobile wireless services (GSM, LTE), which can occur in a shared RF frequency bands The DVB-T, DVB-T2 and LTE standards are briefly described. RF band, where these systems are operated, are outlined too. . There are defined different coexistence scenarios. For the measuring, monitoring and evaluation of these scenarios, an appropriate laboratory workplace is proposed and realized. Results from the measurements show various influence of interfering mobile services on the interacted DVB-T/H system, depending on the considered coexistence scenario.
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Coexistence Between DVB-T And LTE Services In a Shared Frequency Band And Their Measurement
Plaisner, D.
This work deals with exploring, measuring and evaluation of possible coexistence scenarios between Digital Video Broadcasting-Terrestrial (DVB-T) and Long-Term Evolution (LTE) mobile services, which can occur in a shared radio frequency (RF) bands. There are considered two different coexistence scenarios: partial overlapping and full overlapping RF spectrum. For the measuring, monitoring and evaluation of these scenarios, an appropriate laboratory workplace is proposed and realized. Experimental results show that the performance of DVB-T system is differently influenced by the interfering LTE services in considered coexistence scenario.
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