Results 11 to 20 of about 124 (89)

Design of Deep Learning-Based 1-bit Transceiver With Oversampling and Faster-Than-Nyquist (FTN) Signaling

IEEE Access
The adoption of one-bit analog-to-digital converters (ADCs) in wireless communication has become increasingly popular, owing to their potential to reduce power consumption. However, there is a decreased spectral efficiency (SE) associated with their use,
Metasebia Demissu Gemeda, Min Sig Han, Ameha Tsegaye Abebe, Chung G. Kang   +3 more
doaj   +2 more sources

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   +3 more sources

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

Deep Learning-based List Sphere Decoding for Faster-than-Nyquist (FTN) Signaling Detection

2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring), 2022
Faster-than-Nyquist (FTN) signaling is a candidate non-orthonormal transmission technique to improve the spectral efficiency (SE) of future communication systems. However, such improvements of the SE are at the cost of additional computational complexity to remove the intentionally introduced intersymbol interference.
Sina Abbasi, Ebrahim Bedeer
openaire   +2 more sources

A Low‐Complexity and High‐Decoding Performance Scheme for the MIMO‐SCMA System

Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021
Sparse code multiple access (SCMA) has been proposed to obtain high capacity and support massive connections. When combined with the multiple‐input multiple‐output (MIMO) techniques, the spectrum efficiency of the SCMA system can be further improved. However, the detectors of the MIMO‐SCMA system have high computational complexity.
Wenping Ge, Haofeng Zhang, Shiqing Qian, Lili Ma, Gecheng Zhang, Manuel Fernandez-Veiga   +5 more
wiley   +1 more source

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   +1 more source

BER Performance of MIMO-FTN-OWC Communication over Log-normal Fading Channel

Guangtongxin yanjiu, 2022
Faster-than-Nyquist (FTN) technology can improve the spectral efficiency of Optical Wireless Communications (OWC). However, it is affected by the artificially introduced Inter-Symbol Interference (ISI) and atmospheric turbulence, which leads to the ...
LI Wen-wen, CAO Ming-hua, ZHANG Yue, WANG Hui-qin, LIU Ling   +4 more
doaj   +3 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

A Transmission Scheme Based on Uniform Shortening LDPC Codes for Performance Improvement in Faster-Than-Nyquist Systems

IEEE Access, 2022
Faster-than Nyquist (FTN) signaling is a research topic that has been drawing increased attention due to its capability of improving transmission speed without the need of extra bandwidth.
Tanatsan Khantha, Virasit Imtawil, Nararat Ruangchaijatupon, Pirat Khunkitti, Puripong Suthisopapan   +4 more
doaj   +1 more source