Results 21 to 30 of about 258 (98)

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

open access: yesWireless 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   +5 more
wiley   +1 more source

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

open access: yesIEEE 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   +4 more
doaj   +1 more source

Robust Estimators for Faster-Than-Nyquist Signaling

open access: yesIEEE Access, 2022
Novel, robust, and computationally attractive non-data-aided (NDA) and data-aided (DA) single and joint parameter estimators for faster-than-Nyquist (FTN) signaling are presented.
Zouhir Bahri
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

A Deep Learning‐Aided Detection Method for FTN‐Based NOMA

open access: yesWireless Communications and Mobile Computing, Volume 2020, Issue 1, 2020., 2020
The rapid booming of future smart city applications and Internet of things (IoT) has raised higher demands on the next‐generation radio access technologies with respect to connection density, spectral efficiency (SE), transmission accuracy, and detection latency.
Jianxiong Pan   +4 more
wiley   +1 more source

On information rates for faster than Nyquist signaling [PDF]

open access: yes, 2006
In this paper we consider the information rates of faster than Nyquist (FTN) signaling schemes. We consider binary, quaternary and octal schemes that use root raised cosine pulses. Lower and upper bounds to the information rates are given.
Fredrik Rusek   +3 more
core   +2 more sources

A Hybrid BP-EP-VMP Approach to Joint Channel Estimation and Decoding for FTN Signaling over Frequency Selective Fading Channels

open access: yesIEEE Access, 2017
This paper deals with low-complexity joint channel estimation and decoding for faster-than-Nyquist (FTN) signaling over frequency selective fading channels.
Nan Wu   +3 more
doaj   +1 more source

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

open access: yes, 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 ...
Poulliat, Charly   +7 more
core   +2 more sources

Tradeoff Between Calculation Precision and Information Rate in Eigendecomposition-Based Faster-Than-Nyquist Signaling

open access: yesIEEE Access, 2020
This study measured the achievable performance of the recently developed precoded faster-than-Nyquist (FTN) signaling scheme with truncated power allocation from an information-theoretic perspective.
Keita Masaki   +2 more
doaj   +1 more source

Low Complexity Message Passing Receiver for Faster-Than-Nyquist Signaling in Nonlinear Channels

open access: yesIEEE Access, 2018
The modern and future communication systems demand higher data rate exceeds current capabilities. Faster-than-Nyquist (FTN) signaling is a promising technique for the reason it can improve the spectral efficiency.
Xiaojie Wen   +4 more
doaj   +1 more source

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