Overview of Faster-Than-Nyquist for Future Mobile Communication Systems

Hefnawy, Marwa El; Taoka, Hidekazu

doi:10.1109/vtcspring.2013.6692689

Cited by 53 publications

(21 citation statements)

References 17 publications

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“…Therefore, using non-sinc pulse shaping FTN delivers higher capacities compared to the Nyquist signaling. The study in [11] confirms the results of FTN capacity in [3] and additionally indicates that the asymptotic capacity gain achieved by FTN tends to be equal to the excess bandwidth for high SNR.…”

Section: Introductionsupporting

confidence: 79%

On the practical benefits of faster-than-Nyquist signaling

Schellmann

Fuhrwerk

et al. 2014

2014 International Conference on Advanced Technologies for Communications (ATC 2014)

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Faster than Nyquist (FTN) signaling is a nonorthogonal transmission scheme, in which the pulses appear faster than the rate known from the Nyquist criterion. The FTN signaling offers a higher data rate compared to Nyquist signaling but results in intersymbol interference due to the violation of the Nyquist theorem. In this paper, we investigate the FTN system performance in terms of bit error rate (BER), peakto-average power ratio (PAPR), spectral efficiency and compare these with Nyquist signaling given that both systems have the same pulse shape and data rate. Simulation results confirm that FTN signaling system has higher spectral efficiency than the Nyquist signaling system. Furthermore, FTN signaling offers benefits in terms of BER and PAPR by using a pulse shaping filter with a large excess bandwidth factor. The PAPR and BER gains achieved by FTN increase with rising the excess bandwidth factor of the applied pulse shape. In the case of using appropriate pulse shape with high energy concentration in time domain, the PAPR and BER gains given by FTN can be achieved more than 2 dB and 3 dB, respectively.

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Section: Introductionsupporting

confidence: 79%

On the practical benefits of faster-than-Nyquist signaling

Schellmann

Fuhrwerk

et al. 2014

2014 International Conference on Advanced Technologies for Communications (ATC 2014)

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“…FTN is focused on the provision of the next-generation wireless system because of its effectiveness in improving spectral efficiency with its faster sampling process compared to the Nyquist rate [15], [16]. FTN is able to transmit 30-100% more data in the same bandwidth within the same transmit power and error rate compared to the current method [17].…”

Section: Linear Modulation Techniquementioning

confidence: 99%

Signal modulation techniques in Non-orthogonal waveform for future wireless communication system

Ahmad

Yusof

2019

IJEECS

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<span>In the future generation of the wireless communication system, the utilization of bandwidth needs to be managed efficiently. Due to that, research on enhancing the efficiency of the bandwidth has recently attracted numerous interests focusing more on the non-orthogonal waveform generation and detection. Even though non-orthogonal waveform is promising a higher efficiency, it introduces inter-carrier interference (ICI) at the transmitter due to the subcarrier overlapping. In this paper, the signaling technique for non-orthogonal waveform generation and detection is discussed. This paper also proposed the use of accumulator (ACC) to improve the system performance of the signal modulation in the non-orthogonal waveform for the next generation of the wireless communication system. The result is represented in an EXtrinsic Information Transfer (EXIT) chart to show the effects of adding ACC into the non-orthogonal system.</span>

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“…Recently, the faster-than-Nyquist (FTN) method [3][4][5], which transmits faster than the throughput of Nyquist, is emerging as the standard for the next generation Digital Video Broadcasting-Satellite-Third Generation (DVB-S3) and the future of broadcast television (FOBTV) [6,7]. It is possible to transmit signals faster than the Nyquist rate and maximize throughput with the same channel bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Faster-than-Nyquist Signal Processing Based on Unequal Error Probability for High-Throughput Wireless Communications

Baek

Jung

2019

Applied Sciences

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Faster-than-Nyquist (FTN) signal processing, which transmits signals faster than the Nyquist rate, is a representative method for improving throughput efficiency sacrificed performance degradation due to inter-symbol interference. To overcome this problem, this paper proposed FTN signal processing based on the unequal error probability to improve performance. The unequal error probability method divides encoded bits into groups according to priority, and FTN interference rates are differently applied to each group. A lower FTN interference ratio is allocated to the group to which high-priority encoded bits belong and a higher FTN interference ratio is allocated to the group to which low-priority encoded bits belong, thus performance improvement can be obtained compared to the conventional FTN method, with the same interference ratio. In addition, we applied the proposed FTN signal processing, based on the unequal error probability method, to the OFDM (orthogonal frequency division multiplexing) system in multipath channel environments. In the simulations, the performance of the proposed method was better than that of the conventional FTN method by about 0.2 dB to 0.3 dB, with an interference ratio of 20%, 30%, and 40%. In addition, in multipath channels, we confirmed that by applying the proposed unequal error probability, the OFDM-FTN method improves performance to a larger extent than the conventional OFDM-FTN method.

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Overview of Faster-Than-Nyquist for Future Mobile Communication Systems

Cited by 53 publications

References 17 publications

On the practical benefits of faster-than-Nyquist signaling

On the practical benefits of faster-than-Nyquist signaling

Signal modulation techniques in Non-orthogonal waveform for future wireless communication system

Faster-than-Nyquist Signal Processing Based on Unequal Error Probability for High-Throughput Wireless Communications

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