Filters








7,785 Hits in 4.0 sec

Deep Learning based Blind Symbol Packing Ratio Estimation for Faster-than-Nyquist Signaling [article]

Peiyang Song, Fengkui Gong, Qiang Li
2019 arXiv   pre-print
This letter proposes a blind symbol packing rartio estimation for faster-than-Nyquist (FTN) signaling based on state-of-the-art deep learning (DL) technology.  ...  To the best of our knowledge, this is the first effective estimation approach for symbol packing rartio in FTN signaling and has shown its fast convergence and robustness to signal-to-noise ratio (SNR)  ...  Numerical Results: In this section, we assess the performance and robustness of our proposed DL-based packing ratio estimation for FTN signaling.  ... 
arXiv:1907.05606v1 fatcat:2b7zydt26bajhci6fpcx5dfijq

Robust Faster-Than-Nyquist PDM-mQAM Systems With Tomlinson–Harashima Precoding

Deyuan Chang, Oluyemi Omomukuyo, Xiang Lin, Shu Zhang, Octavia A. Dobre, Ramachandran Venkatesan
2016 IEEE Photonics Technology Letters  
A training-based channel estimation algorithm is proposed for the faster-than-Nyquist PDM-mQAM (m = 4, 16, 64) systems with Tomlinson-Harashima precoding (THP).  ...  This is robust to the convergence failure phenomenon suffered by the existing algorithm, yet remaining format-transparent.  ...  An efficient way of adjusting the spectral efficiency is faster-than-Nyquist (FTN) signaling, which has attracted intensive investigations in recent years [2] - [5] and provides more flexibility for  ... 
doi:10.1109/lpt.2016.2573740 fatcat:rqziucnv3fbt7gzwqknhnphofu

Receiver Design for Faster-than-Nyquist Signaling: Deep-learning-based Architectures [article]

Peiyang Song, Fengkui Gong, Qiang Li, Guo Li, Haiyang Ding
2020 arXiv   pre-print
Faster-than-Nyquist (FTN) is a promising paradigm to improve bandwidth utilization at the expense of additional intersymbol interference (ISI).  ...  Finally, both the proposed DL-based receiver architecture has the robustness to signal to noise ratio (SNR). In a nutshell, DL has been proved to be a powerful tool for the FTN receiver design.  ...  , the FTN signaling can achieve an up to 25% higher transmission rate than conventional Nyquist-criterion design in the additive white Gaussian noise (AWGN) channel.  ... 
arXiv:1811.02764v7 fatcat:6xbdofsa6zgx5imz2wsyy67rfy

High-speed and broadband optical transmission system special issue based on selected IEEE ICOCN 2015 papers

Shilong Pan, Alan Pak Tao Lau, Lei Guo, Hoon Kim
2016 Photonic network communications  
In "An effective carrier phase estimation scheme in faster than Nyquist-WDM transmission system," D. W. Pan, C. C. Li, Y. Q. Feng, and X. G.  ...  Zhang propose a carrier phase estimation method using unequaled digital pilot-tone in a faster than Nyquist-WDM transmission system, in which the digital pilot-tone is employed to estimate laser phase  ... 
doi:10.1007/s11107-016-0663-y fatcat:76dy4lu2cfgldgla7wgwxbrmd4

Sparse Detection Algorithms Based on Two-Dimensional Compressive Sensing for Sub-Nyquist Pulse Doppler Radar Systems

Beiyi Liu, Yu Zhao, Xiaomei Zhu, Shinya Matsushita, Li Xu
2019 IEEE Access  
However, there are still two problems that must be addressed for sub-Nyquist pulse Doppler radar. One is that the large memory is required for sparse signal recovery.  ...  Sub-Nyquist pulse Doppler radar system has received wide attention recently because it can make the sampling rate lower than the Nyquist sampling rate.  ...  The PN sequence is called as p c (t), and it must alternate between two values at or faster than the Nyquist frequency of the received signal.  ... 
doi:10.1109/access.2018.2890579 fatcat:q6iwc2iz2bdkvfsw6ss7qanq4a

Semi-blind channel estimation using knowledge of a pulse shape for faster-than-Nyquist signaling

Yusuke Setoguchi, Teruyuki Miyajima, Yoshiki Sugitani
2019 IEICE Communications Express  
In this paper, we propose a semi-blind channel estimation method for faster-than-Nyquist (FTN) signaling.  ...  It is shown that the proposed semi-blind method requires fewer training symbols than the LS method, and it is superior to the blind method regardless of the packing ratio of FTN signaling.  ...  Introduction Faster-than-Nyquist (FTN) signaling is a non-orthogonal transmission scheme that sends pulses at a rate greater than the Nyquist rate, and it can increase the data rate without expanding bandwidth  ... 
doi:10.1587/comex.2019xbl0046 fatcat:sltogaa5nnhzjhgwgce53v7cey

Information Rates for Faster-Than-Nyquist Signaling with 1-Bit Quantization and Oversampling at the Receiver

Tim Halsig, Lukas Landau, Gerhard Fettweis
2014 2014 IEEE 79th Vehicular Technology Conference (VTC Spring)  
This work considers the case of 1-bit quantization combined with oversampling and shows how the performance of such a system can be improved by using matched pulse shaping filters and faster than Nyquist  ...  signaling.  ...  Furthermore the applicability of faster than Nyquist signaling for this system was explored.  ... 
doi:10.1109/vtcspring.2014.7022948 dblp:conf/vtc/HalsigLF14a fatcat:yyzbvtsq5rco5nzd52l4qtg7gu

Digital Instantaneous Frequency Measurement of a Real Sinusoid Based on Three Sub-Nyquist Sampling Channels

Yu Su, Defu Jiang
2020 Mathematical Problems in Engineering  
This deblurring algorithm is more efficient and faster than CRT.  ...  Multichannel sub-Nyquist sampling is an efficient technique to break through the limitation of the Nyquist sampling theorem for the wideband digital instantaneous frequency measurement (DIFM) receiver.  ...  In [21] , a closed-form robust CRT theorem is proposed. It does not need to search for numbers and has better computational performance than [16] .  ... 
doi:10.1155/2020/5089761 fatcat:2anzdx2wmffpthsbekzbw55xye

Symbol Detection for Faster-Than-Nyquist Signaling by Sum-of-Absolute-Values Optimization

Hampei Sasahara, Kazunori Hayashi, Masaaki Nagahara
2016 IEEE Signal Processing Letters  
In this letter, we propose a new symbol detection method for faster-than-Nyquist signaling (FTNS) systems.  ...  Simulation results are given to show that the proposed method can successfully detect symbols in faster-than-Nyquist signaling systems and has lower complexity in terms of computation time.  ...  SYMBOL DETECTION VIA SOAV OPTIMIZATION When the system employs faster-than-Nyquist signaling, i.e., T W > 1, then M < N .  ... 
doi:10.1109/lsp.2016.2625839 fatcat:p7telb47zvch7ir6jbc3tuc7mi

Trade-off between spectral efficiency increase and PAPR reduction when using FTN signaling: Impact of non linearities

Jean-Alain Lucciardi, Nathalie Thomas, Marie-Laure Boucheret, Charly Poulliat, Gilles Mesnager
2016 2016 IEEE International Conference on Communications (ICC)  
Faster-than-Nyquist (FTN) signaling appears as an attractive method to improve spectral efficiency at the price of an increased complexity at the receiver.  ...  achieve a better PAPR than the non compressed scheme with a higher modulation order.  ...  ON SOME PRACTICAL BENEFITS OF FASTER-THAN-NYQUIST SIGNALING FOR SATELLITE COMMUNICATIONS In satellite communications, on-board amplification is a point of crucial interest since on-board amplifiers are  ... 
doi:10.1109/icc.2016.7510842 dblp:conf/icc/LucciardiTBPM16 fatcat:n35wgt7zcvdlfngnwo7webfzka

A faster and accurate method for spectral testing applicable to noncoherent data

Minshun Wu, Degang Chen, Guican Chen
2010 Proceedings of the IEEE 2010 National Aerospace & Electronics Conference  
Theoretical analysis, extensive simulation results, and experimental results show that the proposed method is always faster than the original method and robust when the signal frequency is close to Nyquist  ...  This paper introduces an improved method for achieving accurate and robust spectral testing for sinusoidal signals without the need for coherent sampling or windowing.  ...  The method can achieve accurate and robust spectral testing for sinusoidal signals without the need for coherent sampling or windowing.  ... 
doi:10.1109/naecon.2010.5712927 fatcat:d52l4ptwknevfdeac4d2radtpe

Receiver Design for Faster-than-Nyquist Signaling: Deep-learning-based Architectures

Peiyang Song, Fengkui Gong, Qiang Li, Guo Li, Haiyang Ding
2020 IEEE Access  
Faster-than-Nyquist (FTN) is a promising paradigm to improve bandwidth utilization at the expense of additional intersymbol interference (ISI).  ...  INDEX TERMS Faster-than-Nyquist, receiver design, signal detection, deep learning, intersymbol interference, channel coding. 68866 This work is licensed under a Creative Commons Attribution 4.0 License  ...  ROBUSTNESS TO SNR MISMATCHING It is very important for the proposed DL-based detection to be robust to the SNR values, without which the proposed DL-based detection will be trained and employed for different  ... 
doi:10.1109/access.2020.2986679 fatcat:t6fv7dl2fbfljp5gknmwvktxgm

Effectiveness evaluation of FTN signaling in the presence of nonlinear distortion under multipath fading channels

Atsuya Nakamura, Yuta Kumagai, Shuhei Saito, Hirofumi Suganuma, Keita Kuriyama, Yu Ono, Hayato Fukuzono, Masafumi Yoshioka, Fumiaki Maehara
2021 IEICE Communications Express  
We compare the throughput performance of FTN signaling with that of Nyquist signaling under the same transmission rate via computer simulations, which clarifies the applicability of FTN signaling to practical  ...  This study investigates the throughput performance of fasterthan-Nyquist (FTN) signaling in the presence of nonlinear distortion under multipath fading channels.  ...  Faster-than-Nyquist (FTN) signaling is a promising technique for improving spectral efficiency [2, 3, 4] .  ... 
doi:10.1587/comex.2021xbl0193 fatcat:pd7c7ozimneujkfbela53bdose

Robust EPI Nyquist ghost elimination via spatial and temporal encoding

W. Scott Hoge, Huan Tan, Robert A. Kraft
2010 Magnetic Resonance in Medicine  
This work proposes integrating PLACE into a PAGE-based reconstruction process to yield significantly better Nyquist ghost correction that is more robust than PLACE or PAGE alone.  ...  An approach to robustly eliminate Nyquist ghosts is presented that integrates two previous Nyquist ghost correction techniques: temporal domain encoding (Phase Labeling for Additional Coordinate Encoding  ...  Santiago Aja Fernández for discussions related to SNR.  ... 
doi:10.1002/mrm.22564 pmid:20665898 pmcid:PMC3038256 fatcat:x62fpiulj5g2vayypzeoiw4zr4

For Intelligence and Higher Spectrum Efficiency: A Variable Packing Ratio Transmission System Based on Faster-than-Nyquist and Deep Learning [article]

Peiyang Song, Fengkui Gong
2022 arXiv   pre-print
Faster-than-Nyquist (FTN) signaling, proposed in the 1970s, has been a promising paradigm for improving spectrum utilization.  ...  conventional FTN signaling.  ...  Faster-than-Nyquist (FTN) signaling, proposed in the 1970s, has been a promising paradigm for improving spectrum utilization.  ... 
arXiv:2008.00162v3 fatcat:kpdcmnwrvzasjkwdcldsvss6em
« Previous Showing results 1 — 15 out of 7,785 results