Results 11 to 20 of about 126 (110)

Constrained Capacities for Faster-Than-Nyquist Signaling [PDF]

open access: yesIEEE Transactions on Information Theory, 2009
This paper deals with capacity computations of faster-than-Nyquist (FTN) signaling. It shows that the capacity of FTN is higher than the orthogonal pulse linear modulation capacity for all pulse shapes except the sinc. FTN signals can in fact achieve the ultimate capacity for the signal power spectral density (PSD).
Rusek, Fredrik, Anderson, John B
openaire   +2 more sources

Low-Complexity Selective Mapping Methods for Multicarrier Faster-Than-Nyquist Signaling

open access: yesIEEE Access, 2020
Multicarrier faster-than-Nyquist (MFTN) signaling is a high spectral efficiency transmission scheme, which is promising in the future communication. One of the major problems of MFTN signaling is high peak-to-average power ratio (PAPR).
Biao Cai, Aijun Liu, Xiaohu Liang
doaj   +1 more source

Reduced-Complexity FFT-Spread Multicarrier Faster-Than-Nyquist Signaling in Frequency-Selective Fading Channel

open access: yesIEEE Open Journal of the Communications Society, 2022
In this paper, we propose novel reduced-complexity fast Fourier transform (FFT)-spread multicarrier faster-than-Nyquist (MFTN) signaling with power allocation for a frequency-selective fading channel.
Takumi Ishihara, Shinya Sugiura
doaj   +1 more source

Receiver Design for Faster-Than-Nyquist Signaling: Deep-Learning-Based Architectures

open access: yesIEEE Access, 2020
Faster-than-Nyquist (FTN) is a promising paradigm to improve bandwidth utilization at the expense of additional intersymbol interference (ISI). In this paper, we apply state-of-the-art deep learning (DL) technology into receiver design for FTN signaling ...
Peiyang Song   +4 more
doaj   +1 more source

Zero-Crossing Modulation for Wideband Systems Employing 1-Bit Quantization and Temporal Oversampling: Transceiver Design and Performance Evaluation

open access: yesIEEE Open Journal of the Communications Society, 2021
Next-generation wireless communications systems are anticipated to utilize the vast amount of available spectrum in the millimeter-wave and sub-terahertz bands above $\mathrm {100~ \text {G} \text {Hz} }$ to meet the ever-increasing demand for higher ...
Peter Neuhaus   +2 more
doaj   +1 more source

Faster-than-Nyquist signaling: value and challenges of 6G-oriented applications

open access: yesDianxin kexue, 2021
The faster-than-Nyquist (FTN) signaling technology overlaps multiple streams of data within a symbol period by compressing the transmit symbol time/frequency-domain interval, thus breaking the orthogonality of the Nyquist pulse waveform and achieving the
Xin SU   +4 more
doaj   +2 more sources

A Novel Low Complexity Faster-than-Nyquist (FTN) Signaling Detector for Ultra High-Order QAM

open access: yesIEEE Open Journal of the Communications Society, 2021
Faster-than-Nyquist (FTN) signaling is a promising non-orthogonal pulse modulation technique that can improve the spectral efficiency (SE) of next generation communication systems at the expense of higher detection complexity to remove the introduced ...
Ahmed Ibrahim   +2 more
doaj   +1 more source

Iterative-Detection-Aided Tomlinson-Harashima Precoding for Faster-Than-Nyquist Signaling

open access: yesIEEE Access, 2020
Faster-than-Nyquist(FTN) is a promising technique due to higher spectral efficiency, but at a cost of introducing the inter-symbol interference (ISI) which usually requires the computationally demanding detection algorithms.
Heng Wang   +5 more
doaj   +1 more source

Superposition Coded Modulation Based Faster‐Than‐Nyquist Signaling [PDF]

open access: yesWireless Communications and Mobile Computing, 2018
A structure of faster‐than‐Nyquist (FTN) signaling combined with superposition coded modulation (SCM) is considered. The so‐called FTN‐SCM structure is able to achieve the constrained capacity of FTN signaling and only requires a low detection complexity. By deriving a new observation model suitable for FTN‐SCM, we offer the power allocation based on a
Shuangyang Li   +4 more
openaire   +1 more source

On coding for Faster-Than-Nyquist signaling [PDF]

open access: yes2015 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom), 2015
In this paper, we study the design of sparse graph based codes for Faster-Than-Nyquist (FTN) signaling. Using an asymptotic approach based on EXIT charts, we show that good low-density parity check codes can be designed that perform well under iterative detection and decoding and that have better performance than a FTN scheme using a code optimized for
Tajan, Romain   +3 more
openaire   +2 more sources

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