Digital Signal Disturbed by Impulsive Noise

Bedicks, Gunnar; Dantas, Carlos E.; Sukys, Francisco; Yamada, Fujio; Raunheitte, L.T.M.; Akamine, Cristiano

doi:10.1109/tbc.2005.851139

Cited by 19 publications

(4 citation statements)

References 2 publications

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“…Physical impulsive noise generators can be used to test the robustness of the telecommunications system. The impulsive noise generator should allow control over the parameters and reproducibility in any environment with a window of programmable pulses in the time domain [38].…”

Section: F Deterministic Impulsive Noise Modelsmentioning

confidence: 99%

Deterministic Chaotic Propagation Model

Botelho,

Akamine,

Lopes

2023

IEEE Access

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Coverage prediction is an essential method of planning broadcast and long-range wireless communication systems, minimizing the need for field measurements to adjust the coverage area and consequently reducing the time and cost of implementation. Coverage prediction methods use statistical simplifications in conjunction to uncertainty quantification algorithms to assist in modeling multipath effects and impulsive noise, notably hard to be statistically considered. This paper presents a new approach to represent electromagnetic wave propagation uncertainties based on chaotic dynamical systems to model the behavior of multipath effect and impulsive noise. A novel Deterministic Chaotic Propagation Model (DCPM) is presented and used to predict coverage area in a DVB-T2 broadcast system in diverse transmission environments. The results indicate that the predicted area of bad reception is smaller in comparison to the one obtained using traditional methods. Therefore, fewer signal repeaters can be used to provide good TV reception in this area, causing a significant cost reduction in the set-up of a broadcast system. Another parameter used to evaluate the quality of reception is the carrier to noise power ratio (C/N) threshold for a bit error rate (BER) of 10-7 . The DCPM indicate a C/N threshold equal to 13.7 dB in dense urban environment and 13.4 dB in rural environment using a moderately less robust modulation configuration. Employing a more robust configuration, the C/N threshold is equal to 0.9 dB in all environments. These numbers match the obtained by the traditional propagation models.

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Section: F Deterministic Impulsive Noise Modelsmentioning

confidence: 99%

Deterministic Chaotic Propagation Model

Botelho,

Akamine,

Lopes

2023

IEEE Access

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“…The measurement methodology was based on [21] and other test procedures used to evaluate DTV transmission systems [10], [22][23][24][25].…”

Section: Tem Infrastructurementioning

confidence: 99%

Results of Field Tests of the ISDB-TB System at 8 MHz in Botswana

Jr.¹,

Bedicks²,

Akamine³

et al. 2015

SET IJBE

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“…The 6MHz channel band is divided into 13 segments of 429 KHz widths each. In those 13 segments, it is possible to transmit simultaneous programs with different robustness and modulation techniques [4]. A requirement from Brazilian broadcaster's business model is to make possible the transmission, in the same channel, one HDTV signal in twelve segments with 64 QAM modulation for high quality fixed content and one LDTV (Low Definition TV) signal in one-segment with QPSK or 16-QAM modulation, for mobile applications.…”

Section: In 29mentioning

confidence: 99%