A New Inter-Carrier Interference Cancellation Using CP-ICA Scheme in OFDM Systems

Kim, Jong-Deuk; Byun, Youn-Shik

doi:10.1109/vetecs.2007.489

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…To improve wide-area performance applying SFN synchronization, the studies in [6], [7] have treated various network architectures depending on different parameters like COFDM technology, the selected scattering power, and a perfect adaptation measurement [8] with a suitable antenna [9] for the reception of DVB.…”

Section: Introductionmentioning

confidence: 99%

Very High-Performance Echo Canceller for Digital Terrestrial Television in Single Frequency Network

Ar-Reyouchi¹,

Lamrani²,

Ghoumid³

et al. 2020

IJACSA

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The principal aim of this paper is to cancel out the natural and man-made echoes in single-frequency networks (SFN). The challenge is to detect and remove feedback echoes and enhance the intelligibility of the essential parameters in SFN of digital terrestrial television broadcasting (DTTB) transmitter systems, especially the Modulation Error Ratio (MER), with optimizing coverage areas. We suggest a Digital Video Broadcasting (DVB) gap filler (GF) with two types of echo cancelling: Digital Adaptive Equalizer (DAE) and Doppler Enhanced Echo Canceller (DEEC). The proposed GF outperforms standard GF (SGF), finite impulse response filter (FIR GF), and adaptive GF (AGF) techniques by 33%, 17%, and 13%, respectively. Furthermore, the obtained MER makes the proposed GF (PGF) ideal for operating in SFN using Coded Orthogonal Frequency Division Multiplex (COFDM) technique.

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Section: Introductionmentioning

confidence: 99%

Very High-Performance Echo Canceller for Digital Terrestrial Television in Single Frequency Network

Ar-Reyouchi¹,

Lamrani²,

Ghoumid³

et al. 2020

IJACSA

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“…Other approaches tend to exploit some other redundancy in the signal structure. In [3][4], training symbols are used to estimate the frequency offset, in [5] the authors propose to use the cyclic-prefix and then Independent Component Analysis (ICA) is applied to the received subcarriers. In [6] frequency offset estimation is obtained by repeated information symbols.…”

Section: Introductionmentioning

confidence: 99%

Frequency Domain Estimation and Compensation of Intercarrier Interference in OFDM Systems

Favalli

Savazzi

Vizziello

2008

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications

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Orthogonal Frequency Division Multiplexing (OFDM) is a transmission technique which is robust in multipath channels. It is though sensitive to frequency errors that may be caused by several factors such as frequency offset at the local oscillator, phase noise and mobility of the receiver. These errors introduce Inter-Carrier Interference (ICI) that may be represented in the frequency domain by means of an ICI matrix. Since these types of errors greatly affect the performance of an OFDM system, estimation of this matrix is crucial. In this work we propose an iterative method that uses pilot tones in the frequency domain and converges very quickly. It works in two steps. In the first, correlation between received signal and estimated transmitted signal is used to estimate the channel matrix, and the second estimates the actual transmitted data by means of Minimum Mean Square Error (MMSE) equalization. Results, in the case of high frequency offset and of a time varying flat fading channel, show that the proposed method is very effective.

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A Comprehensive Survey on Blind Source Separation for Wireless Adaptive Processing: Principles, Perspectives, Challenges and New Research Directions

Luo

Zhu

2018

IEEE Access

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A New Inter-Carrier Interference Cancellation Using CP-ICA Scheme in OFDM Systems

Cited by 6 publications

References 14 publications

Very High-Performance Echo Canceller for Digital Terrestrial Television in Single Frequency Network

Very High-Performance Echo Canceller for Digital Terrestrial Television in Single Frequency Network

Frequency Domain Estimation and Compensation of Intercarrier Interference in OFDM Systems

A Comprehensive Survey on Blind Source Separation for Wireless Adaptive Processing: Principles, Perspectives, Challenges and New Research Directions

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