Results 241 to 250 of about 61,871 (287)

Analysis and Design of Improved 5G LDPC Codes for Faster-Than-Nyquist Signaling

International Symposium on Information Theory
This paper focuses on the analysis and design of improved 5G low-density parity-check (LDPC) codes for faster-than-Nyquist (FTN) signaling. We first propose the protograph-based extrinsic information transfer (PEXIT) chart analysis for the LDPC-coded FTN
Jiayi Yang, Qianfan Wang, Shuangyang Li, Peng Kang, Xiao Ma, Baoming Bai, Giuseppe Caire   +6 more
semanticscholar   +1 more source

Spectral shaping for faster-than-Nyquist signaling

2014 11th International Symposium on Wireless Communications Systems (ISWCS), 2014
Spectral shaping is applied to Faster-Than-Nyquist (FTN) signaling to improve information rates. Under a transmit power constraint, the best shape is an inverse filter but for root raised cosine pulses this requires infinite power at the shaper input. Both input and output power constraints at the shaper are thus proposed as a solution to maximize the ...
Marwa El Hefnawy, Guido Dietl, Gerhard Kramer   +2 more
openaire   +1 more source

Faster-Than-Nyquist Signaling Is Good for Single-Carrier ISAC: An Analytical Study

IEEE Transactions on Signal Processing
In this paper, we provide an analytical study of single-carrier faster-than-Nyquist (FTN) signaling for integrated sensing and communications (ISAC). Our derivations show that FTN is advantageous for ISAC, and reveal new insights that these advantages ...
Shuangyang Li, Fan Liu, Yifeng Xiong, Weijie Yuan, Baoming Bai, C. Masouros, Giuseppe Caire   +6 more
semanticscholar   +1 more source

Discrete Time Faster-Than-Nyquist Signalling

2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010
Increasing the symbol rate up to 25\% faster than the Nyquist criteria for a digital communications system with QPSK modulation with an AWGN channel does not significantly increase the bit error rate or required transmission bandwidth. This so-called Faster-than-Nyquist (FTN) signalling has not been used in commercially deployed communications systems ...
Michael McGuire, Mihai Sima
openaire   +1 more source

6G-Oriented LDPC-Coded Faster-Than-Nyquist Signaling: Code Design and Performance Analysis

IEEE Journal on Selected Areas in Communications
This paper focuses on the design and performance analysis of faster-than-Nyquist (FTN) signaling employing enhanced 5G low-density parity-check (LDPC) codes, oriented toward the requirements of future 6G systems.
Jiayi Yang, Qianfan Wang, Shuangyang Li, Peng Kang, Xiao Ma, Baoming Bai, Giuseppe Caire, Xianbin Wang   +7 more
semanticscholar   +1 more source

On the Detection Algorithm for Faster-than-Nyquist Signaling

2016
FTN has been proposed for several decades, and it is attractive for the reason that it can boost the symbol rate without changing the power spectral density. Actually, FTN has been used in some 5G standards. FTN signaling detection is an important element in FTN signaling scheme. In this paper, we shall introduce some FTN signaling detection algorithms
Biao Cai, Xiaohu Liang, Qingshuang Zhang, Yuyang Zhang   +3 more
openaire   +1 more source

Faster-Than-Nyquist Signaling With Index Modulation

IEEE Wireless Communications Letters, 2017
In this letter, we propose a novel faster-than-Nyquist (FTN) transmission scheme relying on the time-domain single-carrier index-modulation (IM) concept. In the proposed FTN with IM (FTN-IM) transmitter, a subset of time-domain FTN symbols are activated, where the combination of the activated symbols conveys additional information further to the ...
Takumi Ishihara, Shinya Sugiura
openaire   +1 more source

Channel Coding Rate for Finite Blocklength Faster-Than-Nyquist Signaling

IEEE Communications Letters, 2021
The fundamental tradeoff between low latency and high reliability makes the design of ultra-reliable low-latency communications (URLLC) wireless systems challenging.
Mostafa Mohammadkarimi, R. Schober, V. Wong   +2 more
semanticscholar   +1 more source

Faster than Nyquist broadcast signaling

2012 26th Biennial Symposium on Communications (QBSC), 2012
In this work, we propose using Faster than Nyquist (FTN) signaling to achieve transmission over continuous-time Gaussian broadcast channel. In the FTN broadcasting, different users' messages are completely separated in the coding stage; hence removing the joint encoding that is typically needed in the previously proposed broadcast channel coding ...
Yong Jin Daniel Kim, Jan Bajcsy
openaire   +1 more source

RIS-Empowered OTFS Modulation With Faster-than-Nyquist Signaling in High-Mobility Wireless Communications

arXiv.org
High-mobility wireless communication systems suffer from severe Doppler spread and multi-path delay, which degrade the reliability and spectral efficiency of conventional modulation schemes. Orthogonal time frequency space (OTFS) modulation offers strong
Chaorong Zhang, B. Ng, Hui Xu, C. Lam, H. Yanikomeroglu   +4 more
semanticscholar   +1 more source