Results 11 to 20 of about 258 (98)

MIMO Asynchronous MAC with Faster-than-Nyquist (FTN) Signaling

GLOBECOM 2023 - 2023 IEEE Global Communications Conference, 2023
Faster-than-Nyquist (FTN) signaling is a nonorthogonal transmission technique, which brings in intentional inter-symbol interference. This way it can significantly enhance spectral efficiency for practical pulse shapes such as the root raised cosine pulses.
Zichao Zhang, Melda Yuksel, Halim Yanikomeroglu, Benjamin K. Ng, Chan-Tong Lam   +4 more
openaire   +4 more sources

The Evolution of Faster-Than-Nyquist Signaling

IEEE Access, 2021
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.
Takumi Ishihara, Shinya Sugiura, Lajos Hanzo   +2 more
doaj   +2 more sources

Superposition Coded Modulation Based Faster‐Than‐Nyquist Signaling

Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 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, Baoming Bai, Jing Zhou, Qingli He, Qian Li, Luca Reggiani   +5 more
wiley   +2 more sources

Pre-Equalized Interference Cancellation for Faster-Than-Nyquist Signaling

IEEE Access, 2019
An affine projection (AP)-based equalizer (APE) is introduced to eliminate the inter-symbol interference (ISI) for faster-than-Nyquist (FTN) signaling. Based on the APE, a pre-equalized interference cancellation (PIC) algorithm is proposed to eliminate ...
Qiang Li, Feng-Kui Gong, Pei-Yang Song, Sheng-Hua Zhai   +3 more
doaj   +2 more sources

Differential Faster-Than-Nyquist Signaling

IEEE Access, 2018
In this paper, we propose a novel differential faster-than-Nyquist (DFTN) signaling concept that allows us to dispense with any channel estimation at the receiver, while benefiting from a rate boost specific to faster-than-Nyquist (FTN) signaling.
Takumi Ishihara, Shinya Sugiura
doaj   +3 more sources

Faster-Than-Nyquist Signaling for MIMO Communications [PDF]

, 2023
<p>Faster-than-Nyquist (FTN) signaling is a non-orthogonal transmission technique, which has the potential to provide significant spectral efficiency improvement.
Zichao Zhang, Halim Yanikomeroglu, Melda Yuksel, Yuksel, Melda, Yanikomeroglu, Halim, Zhang, Zichao   +5 more
core   +2 more sources

Optimizing the Shape of Faster-Than-Nyquist (FTN) Signals With the Constraint on Energy Concentration in the Occupied Frequency Bandwidth [PDF]

IEEE Access, 2020
The achievement of the boundary values of spectral efficiency is associated with the development of methods for generating and receiving signals with a compact spectrum. The reason is a constant increase in the capacity of existing communication channels caused by an increase in the volume of transmitted information.
Sergey B. Makarov, Mingxin Liu, Anna S. Ovsyannikova, Sergey V. Zavjalov, Ilya I. Lavrenyuk, Wei Xue, Junwei Qi   +6 more
openaire   +2 more sources

Performance Evaluation of MIMO-FTN Signaling Under Multipath Fading Channels

IEEE Access, 2023
In this paper, we investigate the advantages of multiple-input multiple-output (MIMO) faster-than-Nyquist (FTN) signaling under a fixed utilized bandwidth and multipath fading channels.
Hao-Tse Chiu, Shuhei Saito, Hirofumi Suganuma, Keita Kuriyama, Kentaro Tanaka, Hitoshi Hasegawa, Toshifumi Miyagi, Takeshi Onizawa, Fumiaki Maehara   +8 more
doaj   +1 more source

Dual pulse shaping transmission with sinc‐function based complementary Nyquist pulses

IET Communications, Volume 16, Issue 17, Page 2091-2104, October 2022., 2022
Abstract Due to difficulties in manufacturing, data conversion devices with extremely high sampling rate are becoming the bottleneck in realising high‐speed communication systems with a large bandwidth. Dual pulse shaping (DPS) transmission allows half‐symbol‐rate conversion devices to be used for two parallel data streams to achieve full‐rate ...
Hang Li, Xiaojing Huang, Jian Andrew Zhang, Hao Zhang, Zhiqun Cheng   +4 more
wiley   +1 more source

Nodal Structure of Toroidal Standing Alfvén Waves and Its Implication for Field Line Mass Density Distribution

Journal of Geophysical Research: Space Physics, Volume 126, Issue 5, May 2021., 2021
Abstract We have conducted a statistical study of toroidal mode standing Alfvén waves detected by the Van Allen Probes spacecraft in the dayside inner magnetosphere, with an emphasis on the nodal structure of the fundamental through fifth harmonics. We developed a technique to accurately assign harmonic mode numbers to peaks in the power spectra of the
Kazue Takahashi, Richard E. Denton
wiley   +1 more source