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Integrated Sensing and Communication (ISAC) requires the development of a waveform capable of efficiently supporting both communication and sensing functionalities. This paper proposes a novel waveform that combines the benefits of both the…

Signal Processing · Electrical Eng. & Systems 2026-01-23 Pankaj Kumar , Mohammed El-Hajjar , Ibrahim A. Hemadeh , Yasser Mestrah , Suraj Srivastava , Aditya K. Jagannatham , Lajos Hanzo

In this paper, a new fast and low complexity transform is introduced for orthogonal frequency division multiplexing (OFDM) wireless systems. The new transform combines the effects of fast complex-Walsh-Hadamard transform (CHT) and the fast…

Signal Processing · Electrical Eng. & Systems 2023-10-30 Said Boussakta , Mounir T. Hamood , Mohammed Sh. Ahmed

Next-generation vehicular networks are expected to provide the capability of robust environmental sensing in addition to reliable communications to meet intelligence requirements. A promising solution is the integrated sensing and…

Signal Processing · Electrical Eng. & Systems 2023-11-28 Weijie Yuan , Lin Zhou , Saeid K. Dehkordi , Shuangyang Li , Pingzhi Fan , Giuseppe Caire , H. Vincent Poor

Integrated sensing and communication (ISAC) is a promising candidate technology for 6G due to its improvement in spectral efficiency and energy efficiency. Orthogonal frequency division multiplexing (OFDM) signal is a mainstream candidate…

Signal Processing · Electrical Eng. & Systems 2025-08-19 Lin Wang , Zhiqing Wei , Xu Chen , Zhiyong Feng

One of the main open problems for next generation wireless networks, is to find the new OFDM-based waveform to be used in 5G. The new modulation scheme must primarily be able to achieve higher spectral efficiency than its predecessor. The…

Signal Processing · Electrical Eng. & Systems 2018-07-30 Francesco Di Stasio , Marina Mondin , Fred Daneshgaran

In this letter, we study the problem of cooperative sensing design for an orthogonal frequency division multiplexing (OFDM) multiple base stations (MBS) system. We consider a practical scenario where the base stations (BSs) exploit certain…

Signal Processing · Electrical Eng. & Systems 2025-07-02 Xinghe Li , Kainan Cheng , Hongzhi Guo , Huiyong Li , Ziyang Cheng

Recent studies shows that the orthogonal time frequency space (OTFS) waveform is a promising candidate for future communication. To meet users' potential demand for Integrated Sensing and Communication (ISAC) applications in 6G, the usage…

Information Theory · Computer Science 2025-10-01 Dazhuo Wang , Yonghong Zeng , Yuhong Wang , Francois Chin , Yugang Ma , Sumei Sun

An attractive research direction for future communication systems is the design of new waveforms that can both support high throughputs and present advantageous signal characteristics. Although most modern systems use orthogonal…

Information Theory · Computer Science 2021-10-22 Mathieu Goutay , Fayçal Ait Aoudia , Jakob Hoydis , Jean-Marie Gorce

This paper proposes a novel low probability of intercept (LPI) waveform design approach for orthogonal frequency-division multiplexing (OFDM)-based integrated sensing and communication systems by introducing artificial phase and Doppler…

Signal Processing · Electrical Eng. & Systems 2026-03-02 Umut Utku Erdem , Lucas Giroto , Tobias Chaloun , Tom Schipper , Taewon Jeong , Christian Karle , Benjamin Nuss , Thomas Zwick

The paradigm of joint communications and sensing (JCAS) envisions a revolutionary integration of communication and radar functionalities within a unified hardware platform. This novel concept not only opens up unprecedented interoperability…

Dual-functional radar-communication (DFRC) has attracted considerable attention. This paper considers the frequency-selective multipath fading environment and proposes DFRC waveform design schemes based on multiple-input and multiple-output…

Information Theory · Computer Science 2025-09-10 Tianchen Liu , Yifei Liu , Liang Wu , Bo An , Zaichen Zhang , Jian Dang , Jiangzhou Wang

This paper proposes an analog orthogonal frequency division multiplexing (OFDM) architecture based on the real-time Fourier transform (RTFT). The core enabling component is a linear-chirp phaser with engineered group velocity dispersion…

Signal Processing · Electrical Eng. & Systems 2025-08-05 Xiaolu Yang , Oscar Céspedes Vicente , Christophe Caloz

The Terahertz band holds a promise to enable both super-accurate sensing and ultra-fast communication. However, challenges arise that severe Doppler effects call for a waveform with high Doppler robustness while severe propagation path loss…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Meilin Li , Chong Han , Shi Jin

Across the world, there is growing interest in new waveforms, Zak-OTFS in particular, and over-the-air implementations are starting to appear. The choice between OFDM and Zak-OTFS is not so much a choice between waveforms as it is an…

Orthogonal time frequency space (OTFS) is a promising alternative to orthogonal frequency division multiplexing (OFDM) for high-mobility communications. We propose a novel multiple-input multiple-output (MIMO) integrated sensing and…

Signal Processing · Electrical Eng. & Systems 2023-06-13 Musa Furkan Keskin , Carina Marcus , Olof Eriksson , Alex Alvarado , Joerg Widmer , Henk Wymeersch

Orthogonal frequency division multiplexing (OFDM)-based integrated sensing and communication (ISAC) is promising for future sixth-generation mobile communication systems. Existing works focus on the joint estimation of the targets' range…

Signal Processing · Electrical Eng. & Systems 2023-12-21 Zelin Hu , Qibin Ye , Yixuan Huang , Su Hu , Gang Yang

Affine frequency division multiplexing (AFDM) is a recently proposed communication waveform for time-varying channel scenarios. As a chirp-based multicarrier modulation technique it can not only satisfy the needs of multiple scenarios in…

Signal Processing · Electrical Eng. & Systems 2024-01-01 Jiajun Zhu , Yanqun Tang , Xizhang Wei , Haoran Yin , Jinming Du , Zhengpeng Wang , Yuqinng Liu

Integrated sensing and communication (ISAC) is expected to be one of the major features of 6G wireless networks. In an ISAC system, communications and sensing functionalities are jointly performed using the same waveform, frequency band and…

Information Theory · Computer Science 2025-09-16 Homa Nikbakht , Husheng Li , Zhu Han , H. Vincent Poor

In this paper, a new single-carrier waveform, called chirped discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM), is proposed for the sixth generation of communications. As the initial study on this…

Signal Processing · Electrical Eng. & Systems 2025-02-20 Yujie Liu , Yong Liang Guan , David González G. , Halim Yanikomeroglu

Orthogonal time frequency space (OTFS) modulation has recently been identified as a suitable waveform for joint radar and communication systems. Focusing on the effect of data modulation on the radar sensing performance, we derive the…

Signal Processing · Electrical Eng. & Systems 2024-03-14 Shalanika Dayarathna , Peter Smith , Rajitha Senanayake , Jamie Evans
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