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Related papers: Faster-than-Nyquist Signaling for Next-Generation …

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Faster-than-Nyquist (FTN) signaling aided non-orthogonal multiple access (NOMA) is conceived and its achievable rate is quantified in the presence of random link delays of the different users. We reveal that exploiting the link delays may…

Information Theory · Computer Science 2021-11-29 Shuangyang Li , Zhiqiang Wei , Weijie Yuan , Jinhong Yuan , Baoming Bai , Derrick Wing Kwan Ng , Lajos Hanzo

This letter proposes the Faster-than-Nyquist signaling (FTNS) using overlap frequency domain equalization (FDE), which compensates the inter-symbol interference (ISI) due to band limiting filters of the FTNS at the transmitter and the…

Information Theory · Computer Science 2015-09-03 Hiroyuki Fukumoto , Kazunori Hayashi

Faster-than-Nyquist (FTN) signaling can improve the spectral efficiency (SE); however, at the expense of high computational complexity to remove the introduced intersymbol interference (ISI). Motivated by the recent success of ML in…

Information Theory · Computer Science 2022-08-24 Sina Abbasi , Ebrahim Bedeer

This paper proposes a convolutional neural network (CNN)-based detector for faster-than-Nyquist (FTN) signaling that employs structured fixed kernel layers with domain-informed masking to mitigate intersymbol interference (ISI). Unlike…

Signal Processing · Electrical Eng. & Systems 2025-07-22 Osman Tokluoglu , Enver Cavus , Ebrahim Bedeer , Halim Yanikomeroglu

In this paper, we propose a serially concatenated turbo-encoded faster-than-Nyquist signaling (FTNS) transceiver that takes into account FTNS-specific colored noise effects. The proposed low-complexity receiver carries out soft-decision…

Information Theory · Computer Science 2016-04-14 Takumi Ishihara , Shinya Sugiura

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…

Information Theory · Computer Science 2022-04-18 Sina Abbasi , Ebrahim Bedeer

Faster-than-Nyquist (FTN) signal achieves higher spectral efficiency and capacity compared to Nyquist signal due to its smaller pulse interval or narrower subcarrier spacing. Shannon limit typically defines the upper-limit capacity of…

Information Theory · Computer Science 2017-06-28 Ji Zhou , Yaojun Qiao , Zhanyu Yang , Mengqi Guo , Xizi Tang

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…

Information Theory · Computer Science 2026-05-20 Chaorong Zhang , Benjamin K. Ng , Hui Xu , Chan-Tong Lam , Halim Yanikomeroglu

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…

Information Theory · Computer Science 2014-01-29 Marwa El Hefnawy , Gerhard Kramer

In this paper, we investigate the sequence estimation problem of faster-than-Nyquist (FTN) signaling as a promising approach for increasing spectral efficiency (SE) in future communication systems. In doing so, we exploit the concept of…

Signal Processing · Electrical Eng. & Systems 2019-12-24 Michel Kulhandjian , Ebrahim Bedeer , Hovannes Kulhandjian , Claude D'Amours , Halim Yanikomeroglu

Multiple-antenna technologies are evolving towards larger aperture sizes, extremely high frequencies, and innovative antenna types. This evolution is fostering the emergence of near-field communications (NFC) in future wireless systems.…

Signal Processing · Electrical Eng. & Systems 2024-10-04 Yuanwei Liu , Chongjun Ouyang , Zhaolin Wang , Jiaqi Xu , Xidong Mu , A. Lee Swindlehurst

Spectrum scarcity necessitates innovative, spectral-efficient strategies to meet the ever-growing demand for high data rates. Faster-than-Nyquist (FTN) signaling emerges as a compelling spectral-efficient transmission method that pushes…

Signal Processing · Electrical Eng. & Systems 2024-06-18 Adem Cicek , Ian Marsland , Enver Cavus , Ebrahim Bedeer , Halim Yanikomeroglu

Reduced complexity faster-than-Nyquist (FTN) signaling systems are gaining increased attention as they provide improved bandwidth utilization for an acceptable level of detection complexity. In order to have a better understanding of the…

Signal Processing · Electrical Eng. & Systems 2020-03-03 Abdulsamet Caglan , Adem Cicek , Enver Cavus , Ebrahim Bedeer , Halim Yanikomeroglu

Both faster than Nyquist (FTN) signaling and non-orthogonal multiple access (NOMA) are promising next generation wireless communications techniques as a benefit of their capability of improving the system's spectral efficiency. This paper…

Signal Processing · Electrical Eng. & Systems 2020-02-20 Weijie Yuan , Nan Wu , Jinhong Yuan , Derrick Wing Kwan Ng , Lajos Hanzo

In this paper, we present an innovative symbol-level precoding (SLP) approach for a wideband multi-user multi-input multi-output (MU-MIMO) downlink Integrated Sensing and Communications (ISAC) system employing faster-than-Nyquist (FTN)…

Signal Processing · Electrical Eng. & Systems 2023-06-27 Zihan Liao , Fan Liu , Ang Li , Christos Masouros

The pursuit of higher data rates and efficient spectrum utilization in modern communication technologies necessitates novel solutions. In order to provide insights into improving spectral efficiency and reducing latency, this study…

Information Theory · Computer Science 2025-01-15 Zichao Zhang , Melda Yuksel , Halim Yanikomeroglu , Benjamin K. Ng , Chan-Tong Lam

Next-generation mobile networks promise to support high throughput, massive connectivity, and improved energy efficiency. To achieve these ambitious goals, extremely large-scale antenna arrays (ELAAs) and terahertz communications constitute…

Information Theory · Computer Science 2023-09-19 Jiancheng An , Chau Yuen , Linglong Dai , Marco Di Renzo , Merouane Debbah , Lajos Hanzo

With the rapid development of various services in wireless communications, spectrum resource has become increasingly valuable. Faster than Nyquist (FTN) signaling, proposed in the 1970s, is a promising paradigm for improving spectrum…

Signal Processing · Electrical Eng. & Systems 2023-01-20 Peiyang Song , Nan Zhang , Lin Cai , Guo Li , Fengkui Gong

This letter proposes a blind symbol packing rartio estimation for faster-than-Nyquist (FTN) signaling based on state-of-the-art deep learning (DL) technology. The symbol packing rartio is a vital parameter to obtain the real symbol rate and…

Signal Processing · Electrical Eng. & Systems 2019-12-30 Peiyang Song , Fengkui Gong , Qiang Li

A precoded orthogonal time frequency space (OTFS) modulation scheme relying on faster-than-Nyquist (FTN) transmission over doubly selective fading channels is {proposed}, which enhances the spectral efficiency and improves the Doppler…

Signal Processing · Electrical Eng. & Systems 2024-11-05 Zekun Hong , Shinya Sugiura , Chao Xu , Lajos Hanzo