Inner Code Optimization for High Rate Faster-than-Nyquist

Che, Hui; Wu, Ziyan; Kang, Weimin

doi:10.1109/wcnc.2019.8886118

Cited by 6 publications

(12 citation statements)

References 23 publications

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“…[19] and the MC with PAS for case C. For case A (SC-FTN), we employ the DVB LDPC with a code length of 16200 and a code rate of r L = 2/3 (short FECFRAME) for the MC with PAS. The DVB LDPC for case A has the same code length as the channel code in [11]. r D = 1.6737, the total code rate R = 0.5579, and the SE for the MC with PAS is 3.3474 bit/s/Hz, which is approximately the desired SE 3.3333 bit/s/Hz.…”

Section: Ber Resultsmentioning

confidence: 99%

“…Fig. 10 shows the BER performances of the DC [11] and the MC with PAS. The MC with PAS has a 2.0 dB gain compared with the DC at the approximately equal SE.…”

Section: Ber Resultsmentioning

confidence: 99%

“…We use the SE as a performance metric to make fair comparisons between the DC and the MC with PAS. There are three examples as shown in Tables 1, 2, 3, and the baselines (DC) in the three cases are studied in [11], [29], [19], respectively. We employ the efficient implementation of MFTN with MC to calculate the AIR.…”

Section: Theoretical Performance For Pas-mftn-lpementioning

confidence: 99%

“…Thus, the FTN-LPE achieves the precoding gain in addition to the compression gain. Che et al [11], [27] have optimized the convolution precoder for the FTN with DC. We ignored the effects of inter-frame interference to evaluate the information-theoretic limit and achievable BER limit of the coded modulation system.…”

Section: Introductionmentioning

confidence: 99%

“…The Monte-Carlo BER simulations verify the effectiveness of the proposed method. For case A, the MC with PAS has a 2.0 dB gain compared with the DC[11] at the approximately equal SE. The MC with PAS has a 0.2 dB gain than PS4 (the DC with PAS) in[27] at the approximately equal SE.…”

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confidence: 97%

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Multicarrier Faster-Than-Nyquist Based on Efficient Implementation and Probabilistic Shaping

2021

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The conventional multicarrier faster-than-Nyquist (MFTN) achieves the spectral efficiency (SE) gain by deep compression. However, deep compression leads to severe intersymbol interference (ISI) or intercarrier interference (ICI). We propose the MFTN based on efficient implementation and probabilistic amplitude shaping (PAS) to achieve the SE gain with low complexity. We use mild compression instead of conventional deep compression to achieve the compression gain. The MFTN transceiver with the mild compression can be efficiently implemented by fast Fourier transform (FFT)/inverse FFT (IFFT) and filtering operation. The linear pre-equalization (LPE) method eliminates the ISI for mild compression. The MFTN with efficient implementation employs PAS to achieve extra shaping gain. The theoretical results and simulation results show that our method can achieve better performance than the conventional FTN/MFTN with deep compression. The proposed method does not require a complex equalization algorithm and global turbo iteration so that the total complexity is reduced.INDEX TERMS Multicarrier, faster-than-Nyquist, linear pre-equalization, probabilistic shaping, mild compression.

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Section: Ber Resultsmentioning

confidence: 99%

“…Fig. 10 shows the BER performances of the DC [11] and the MC with PAS. The MC with PAS has a 2.0 dB gain compared with the DC at the approximately equal SE.…”

Section: Ber Resultsmentioning

confidence: 99%

Section: Theoretical Performance For Pas-mftn-lpementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 97%

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Multicarrier Faster-Than-Nyquist Based on Efficient Implementation and Probabilistic Shaping

2021

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A novel shaping pulse in faster-than-Nyquist system

Kang

2022

Telecommun Syst

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The Evolution of Faster-Than-Nyquist Signaling

2021

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The fifty-year progress of faster-than-Nyquist (FTN) signaling is surveyed. FTN signaling exploits non-orthogonal dense symbol packing in the time domain for the sake of increasing the data rate attained. After reviewing the system models of both the conventional Nyquist-based and FTN signaling transceivers, we survey the evolution of FTN techniques, including their low-complexity detection and channel estimation. Furthermore, in addition to the classic FTN signaling philosophy, we introduce the recent frequency-domain filtering and precoding aided schemes. When relying on precoding, the information rate of FTN signaling becomes related to the eigenvalues of an FTN-specific intersymbol interference matrix, which provides a unified framework for the associated information-theoretic analysis and simplifies the associated power allocation specifically designed for increasing the information rate attained. We show that the FTN signaling scheme combined with bespoke power allocation employing a realistic raised-cosine shaping filter achieves the Shannon capacity associated with ideal rectangular shaping filters.

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Inner Code Optimization for High Rate Faster-than-Nyquist

Cited by 6 publications

References 23 publications

Multicarrier Faster-Than-Nyquist Based on Efficient Implementation and Probabilistic Shaping

Multicarrier Faster-Than-Nyquist Based on Efficient Implementation and Probabilistic Shaping

A novel shaping pulse in faster-than-Nyquist system

The Evolution of Faster-Than-Nyquist Signaling

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