BER analysis of STBC hybrid carrier system based on WFRFT with frequency domain equalization

Wang, Zhenduo; Mei, Lin; Sha, Xuejun; Zhang, Naitong

doi:10.1007/s11432-017-9259-0

Cited by 13 publications

(5 citation statements)

References 22 publications

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“…Examination of (19) shows that the time range of the TR channel is [−L h , L h ]; therefore, its maximum order is L q = 2L h , which is double that of h m . After the time reversal, y (n) is first delayed by τ to yield r (n) = y (n − τ ) which, as per (15), is given by…”

Section: B Time Domain Equalizationmentioning

confidence: 99%

“…Mei et al proposed a hybrid carrier (HC) system based on weighted fractional Fourier transform (WFRFT) [15]- [18]. The system combines MC and SC to modulate information onto a two-dimensional time-frequency plane, which not only has a compromising performance in many aspects, such as spectral efficiency, PAPR, energy efficiency and theoretical bit error rate (BER) [19], but also outperforms MC and SC with narrowband interference [20] or over doubly selective fading channels [18]- [21], [22]. Strong flexibility is another advantage of the WFRFT and HC scheme.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hybrid Carrier Underwater Acoustic Communication Based on Joint Time-Frequency Domain Equalization

Yin

Han

et al. 2019

IEEE Access

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Weighted fractional Fourier transform-based hybrid carrier communication can be regarded as a combination of single-carrier communication and multicarrier communication, providing strong flexibility due to the changeable transform order. The hybrid carrier underwater acoustic communication based on the joint time-frequency domain equalization is proposed in this paper. With the time-domain equalization based on time reversal, multipath spreads of underwater acoustic channels can be greatly suppressed. Thus, the length of the required cycle prefix is shortened, improving the bandwidth efficiency. The residual intersymbol interference can be removed using frequency-domain equalization based on the minimum mean square error or zero force. The experimental results show that the optimal transform orders to achieve the best communication performance are different in different environments. Compared with the traditional frequency-domain equalization method, the proposed method performs better with respect to bit error rate and bandwidth efficiency. INDEX TERMS Weighted fractional Fourier transform, hybrid carrier, time reversal mirror, frequency domain equalization, cycle prefix.

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Section: B Time Domain Equalizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hybrid Carrier Underwater Acoustic Communication Based on Joint Time-Frequency Domain Equalization

Yin

Han

et al. 2019

IEEE Access

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“…In the same context, references [14][15] compare the performance of STBC-OFDM systems based on FFT and DWT. On the other hand, references [16][17] and [18] compare the performance of STBC-OFDM systems based on FFT and FrFT and MIMO-OFDM systems based on FFT and FrFT, respectively. The results in [16][17] showed that the FrFT-based STBC-OFDM system is superior to the FFT-based STBC-OFDM system in terms of BER.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, references [16][17] and [18] compare the performance of STBC-OFDM systems based on FFT and FrFT and MIMO-OFDM systems based on FFT and FrFT, respectively. The results in [16][17] showed that the FrFT-based STBC-OFDM system is superior to the FFT-based STBC-OFDM system in terms of BER. Obviously, in the literature, no previous work had compared the performance of FFT-based, DWT-based, and FrFT-based STBC-OFDM systems.…”

Section: Introductionmentioning

confidence: 99%

Performance assessment of STBC-OFDM system using different transforms over LOS and NLOS channel

Kansal,

Mounir

2023

Preprint

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Modern day users demand a robust communication that too an elevated data rate. These expectations can only be fulfilled by a hybrid combination of multiplexing techniques likes of orthogonal frequency division multiplexing (OFDM) and multiple input multiple output (MIMO) antenna systems. OFDM methodology takes care of elevated data rate requirements whereas MIMO facilitate the enhanced reliability, low bit error rate (BER) and higher spectral efficiency characteristics. The performance of conventional MIMO-OFDM system can further be enhanced by utilizing various transforms like fractional Fourier transform (FrFT) or discrete wavelet transform (DWT) in place of traditional fast Fourier transform (FFT) in OFDM. A comprehensive analysis of bit error rate (BER) and spectral efficiency for conventional MIMO-OFDM system based on FFT, FrFT, and DWT has been presented in this paper. The simulated outcome shows a significant reduction in BER and improvement in spectral efficiency in the DWT-based MIMO-OFDM system.

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“…• Filtering-based multicarriers: filter bank multicarrier (FBMC) [1], universal filtered multicarrier (UFMC) [2], and filtered orthogonal frequency division multiplexing (F-OFDM) [3]. • Precoding-based multicarriers: orthogonal time frequency space (OTFS) [4], hybrid carrier (HC) [5], OTFS extended by weightedtype fractional Fourier transform (WFRFT-OTFS) [6].…”

mentioning

confidence: 99%

Multicarrier waveforms classification with deep neural networks

Deng

Lei

Wan

et al. 2022

Preprint

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Automatic modulation classification (AMC) plays an important role in various applications such as cognitive radio and dynamic spectrum access. Many research works have been exploring deep learning (DL) based AMC, but they primarily focus on single-carrier signals. With the advent of various multicarrier waveforms, the authors propose to revisit DL-based AMC to consider the diversity and complexity of these novel transmission waveforms in this letter. Specifically, the authors develop a novel representation of multicarrier signals and use suitable networks for classification. In addition, to cope with non-target signals, support vector data description (SVDD) is applied with the activations of the networks’ hidden layer. Experimental results demonstrate the effectiveness of the proposed scheme.

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BER analysis of STBC hybrid carrier system based on WFRFT with frequency domain equalization

Cited by 13 publications

References 22 publications

Hybrid Carrier Underwater Acoustic Communication Based on Joint Time-Frequency Domain Equalization

Hybrid Carrier Underwater Acoustic Communication Based on Joint Time-Frequency Domain Equalization

Performance assessment of STBC-OFDM system using different transforms over LOS and NLOS channel

Multicarrier waveforms classification with deep neural networks

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