Detail publikačního výsledku

Measurement and Evaluation of IQ-Imbalances in DVB-T and DVB-T2-Lite OFDM Modulators

POLÁK, L.; KRATOCHVÍL, T.

Originální název

Measurement and Evaluation of IQ-Imbalances in DVB-T and DVB-T2-Lite OFDM Modulators

Anglický název

Measurement and Evaluation of IQ-Imbalances in DVB-T and DVB-T2-Lite OFDM Modulators

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

First and second generation digital video broadcasting terrestrial systems (DVB-T and DVB-T2/T2-Lite), like many other wireless communication standards, contain an Orthogonal Frequency Division Multiplexing (OFDM) signal processing chain. One of the main disadvantages of the OFDM technique is its high sensitivity to the non-orthogonality between In-Phase and Quadrature (IQ) signals in the IQ modulator/demodulator. This article focuses on exploration of the DVB-T and DVB-T2-Lite performance degradation caused by various IQ-errors. Portable transmission scenarios are considered and modeled by Portable Indoor and Outdoor (PI3 and PO3) fading channels. Objective system parameters, namely bit and modulation error ratio (BER and MER), are used to compare overall DVB-T and DVB-T2-Lite performances. Results show higher resistance of DVB-T2-Lite against IQ-errors whereas, lower amount of such errors causes similar performance degradation in both systems.

Anglický abstrakt

First and second generation digital video broadcasting terrestrial systems (DVB-T and DVB-T2/T2-Lite), like many other wireless communication standards, contain an Orthogonal Frequency Division Multiplexing (OFDM) signal processing chain. One of the main disadvantages of the OFDM technique is its high sensitivity to the non-orthogonality between In-Phase and Quadrature (IQ) signals in the IQ modulator/demodulator. This article focuses on exploration of the DVB-T and DVB-T2-Lite performance degradation caused by various IQ-errors. Portable transmission scenarios are considered and modeled by Portable Indoor and Outdoor (PI3 and PO3) fading channels. Objective system parameters, namely bit and modulation error ratio (BER and MER), are used to compare overall DVB-T and DVB-T2-Lite performances. Results show higher resistance of DVB-T2-Lite against IQ-errors whereas, lower amount of such errors causes similar performance degradation in both systems.

Klíčová slova

DVB-T, DVB-T2-Lite, amplitude imbalance, phase imbalance, BER, MER, QEF, iteration number, fading channel

Klíčová slova v angličtině

DVB-T, DVB-T2-Lite, amplitude imbalance, phase imbalance, BER, MER, QEF, iteration number, fading channel

Autoři

POLÁK, L.; KRATOCHVÍL, T.

Rok RIV

2018

Vydáno

05.07.2017

ISBN

978-1-5090-3981-4

Kniha

Proceeding of 40th International Conference on Telecommunications and Signal Processing (TSP)

Strany od

555

Strany do

558

Strany počet

4

URL

http://ieeexplore.ieee.org/document/8076048/

BibTex

@inproceedings{BUT137682,
  author="Ladislav {Polák} and Tomáš {Kratochvíl}",
  title="Measurement and Evaluation of IQ-Imbalances in DVB-T and DVB-T2-Lite OFDM Modulators",
  booktitle="Proceeding of 40th International Conference on Telecommunications and Signal Processing (TSP)",
  year="2017",
  pages="555--558",
  doi="10.1109/TSP.2017.8076048",
  isbn="978-1-5090-3981-4",
  url="http://ieeexplore.ieee.org/document/8076048/"
}