Investigation of the Properties of an Filterbank Multicarrier Modem in a Broadband HF Channel

Lobov, E. M.; Varlamov, V. O.

doi:10.1109/synchroinfo51390.2021.9488412

Cited by 12 publications

(2 citation statements)

References 12 publications

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“…Another comparison of FBMC-OQAM, CP-OFDM and FMT performance was presented in [ 9 ] and shows that CP-OFDM and FMT have advantageous effects only for high SNR values, where the FBMC-OQAM self-interference noise level became comparable to channel noise. In [ 10 ], we provide an investigation of FBMC-OQAM signal properties in conditions of wideband HF channels, and the presented modeling results show the resistance abilities of FBMC-OQAM signals in the case of Watterson’s channel model [ 11 ], including the influence of ionospheric dispersion distortions of signals, which greatly corrupt wideband signals.…”

Section: Introductionmentioning

confidence: 99%

Investigation of FBMC-OQAM Equalization with Real Interference Prediction Algorithm Properties for MIMO Transmission Scheme

Varlamov

Lobov

Lobova

2023

Sensors

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Increasing the data transfer rate is an urgent task in cellular, high-frequency (HF) and special communication systems. The most common way to increase the data rate is to expand the bandwidth of the transmitted signal, which is often achieved through the use of multitone systems. One such system is the filter bank multicarrier (FBMC). In addition, speed improvements are achieved using multi-input–multi-output (MIMO) systems. In this study, we developed an algorithm for equalizing FBMC signals with offset-QAM modulation (OQAM) with self-interference compensation due to its correlation properties in a MIMO channel with memory. An analytical derivation of the proposed algorithm and an analysis of the computational complexity are given. According to the results of simulation modeling and a comparative analysis of performance in terms of the bit error rate and error vector magnitude with solutions with similar computational complexity, a similar level of performance was shown compared to a more complex parallel multistage algorithm, and a better performance was demonstrated compared to a one-tap algorithm.

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Section: Introductionmentioning

confidence: 99%

Investigation of FBMC-OQAM Equalization with Real Interference Prediction Algorithm Properties for MIMO Transmission Scheme

Varlamov

Lobov

Lobova

2023

Sensors

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“…Techniques like equivalent-time sampling [15][16][17][18][19][20][21], filter bank (FB) sampling [22][23][24][25][26], and coherent or incoherent receivers have all been suggested to deal with the problem of the high sampling rate in UWB detection and monitoring. To effectively avoid the issue of an unnecessary sampling rate, equivalent-time sampling employs the periodicity of the signal to sample the signal for multiple periods and uses a single-chip low-speed ADC to achieve a higher equivalent sampling rate [19].…”

Section: Introductionmentioning

confidence: 99%

A low sampling rate method for the monopole UWB impulse parameter monitoring using waveform transformation

Zhang¹,

Xie²,

Li³

et al. 2023

Meas. Sci. Technol.

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In ultra-wideband (UWB) impulse parameter monitoring, amplitude and pulse width measurements are crucial for detecting and classifying unknown impulse signals. Meanwhile, mass sampling data and the complexity of the current measurement technologies are the limitations of real-time and continuous monitoring. It urges to adopt a simple method that reduces the sampling rate without sacrificing accuracy. This article suggests a novel approach for the monopole UWB by analog signal preprocessing before sampling. A peak detector and integrator are utilized to retain the impulse amplitude and the area inside the impulse for a period, which is the so-called waveform transformation. A low-speed two-channel synchronous ADC samples the output signals from the peak detector and the integrator to determine the amplitude and the area. In the signal process, we demonstrate the concept that pulse width value equals the division of area and amplitude. Due to the distorted amplitude caused by the response time of the peak detector, the relationship between the distorted amplitude, the actual amplitude, and the pulse width is analyzed and examined based on the response function. Finally, the actual amplitude and pulse width are acquired and calculated by solving two equations. In terms of impulse waveform, rectangular and Gaussian waveform factors are developed and applied in the measurement. The proof-of-concept experimental results of a 0.68 V/ 18.8 ns rectangular impulse at a 10 Msps sampling rate is 0.711 V/ 17.00 ns with 4.56 %/ 9.57% relative error, tested and verified.

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Frequency Window With Homogeneous Time of Flight (ToF) for Near Vertical Incidence Skywave (NVIS) Propagation Determined Based on Ionograms

Dear,

Afero,

Pradipta

et al. 2024

IEEE Access

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Investigation of the Properties of an Filterbank Multicarrier Modem in a Broadband HF Channel

Cited by 12 publications

References 12 publications

Investigation of FBMC-OQAM Equalization with Real Interference Prediction Algorithm Properties for MIMO Transmission Scheme

Investigation of FBMC-OQAM Equalization with Real Interference Prediction Algorithm Properties for MIMO Transmission Scheme

A low sampling rate method for the monopole UWB impulse parameter monitoring using waveform transformation

Frequency Window With Homogeneous Time of Flight (ToF) for Near Vertical Incidence Skywave (NVIS) Propagation Determined Based on Ionograms

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