Results 41 to 50 of about 910,579 (228)

Dual-Mode Time-Domain Index Modulation for Nyquist-Criterion and Faster-Than-Nyquist Single-Carrier Transmissions

open access: yesIEEE Access, 2017
In this paper, we propose a novel dual-mode time-domain single-carrier (SC) index modulation (DM-SCIM) scheme, where the combination of two constellation modes carries information bits further to modulated symbols, hence increasing the transmission rate.
Miyu Nakao   +2 more
doaj   +1 more source

Time Localization and Capacity of Faster-Than-Nyquist Signaling

open access: yes, 2015
In this paper, we consider communication over the bandwidth limited analog white Gaussian noise channel using non-orthogonal pulses. In particular, we consider non-orthogonal transmission by signaling samples at a rate higher than the Nyquist rate. Using
Gattami, Ather   +2 more
core   +1 more source

Impact of Spectrum Sharing on the Efficiency of Faster-Than-Nyquist Signaling

open access: yes, 2014
Capacity computations are presented for Faster-Than-Nyquist (FTN) signaling in the presence of interference from neighboring frequency bands. It is shown that Shannon's sinc pulses maximize the spectral efficiency for a multi-access channel, where ...
Hefnawy, Marwa El, Kramer, Gerhard
core   +1 more source

Symbol Detection for Frame-Based Faster-than-Nyquist Signaling via Sum-of-Absolute-Values Optimization

open access: yes, 2015
In this letter, we propose a new symbol detection method for faster-than-Nyquist signaling (FTNS) systems. Based on frame theory, we formulate a symbol detection problem as a under-determined linear equation on a finite set.
Hayashi, Kazunori   +2 more
core   +1 more source

Blind recognition of BCH codes in faster‐than‐Nyquist signalling system

open access: yesElectronics Letters, 2016
Proposed is a blind recognition method for Bose–Chaudhuri–Hocquenghem (BCH) codes in the faster‐than‐Nyquist (FTN) signalling system which is based on the Galois field Fourier transform of the code polynomial.
Gang Wu   +3 more
doaj   +1 more source

Low-Complexity Detection of High-Order QAM Faster-Than-Nyquist Signaling

open access: yesIEEE Access, 2017
Faster-than-Nyquist (FTN) signaling is a promising non-orthogonal transmission technique to considerably improve the spectral efficiency. This paper presents the first attempt in the literature to estimate the transmit data symbols of any high-order ...
Ebrahim Bedeer   +2 more
doaj   +1 more source

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

open access: yesGLOBECOM 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.
Zhang, Zichao   +4 more
openaire   +3 more sources

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

On the Capacity of Faster Than Nyquist Signaling [PDF]

open access: yesIEEE Communications Letters, 2020
This letter considers the capacity computations of faster-than-Nyquist (FTN) signaling. It calculates the theoretical capacity of FTN signaling which is obtained by a correlated input. The capacity-achieving power spectral density (PSD) is derived and its superiority over the independent input is shown.
Mehdi Ganji, Xun Zou, Hamid Jafarkhani
openaire   +3 more sources

Faster-than-Nyquist transmission based on multi-layer superposition

open access: yesTongxin xuebao, 2017
Faster-than-Nyquist (FTN) signaling technique has received much attention recently as an effective way of enhancing the spectral efficiency.In order to reduce the detection complexity for FTN signals,a multi-layer superposition transmission approach was ...
Shuang-yang LI   +3 more
doaj   +2 more sources

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