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Affine Frequency Division Multiplexing (AFDM) has been regarded as a candidate integrated sensing and communications (ISAC) waveform owing to its superior communication performance, outperforming the Orthogonal Time-Frequency Space (OTFS)…

Signal Processing · Electrical Eng. & Systems 2025-09-05 Yuanfang Ma , Zulin Wang , Peng Yuan , Qin Huang , Yuanhan Ni

The Fourth Generation (4G) of mobile communication systems was optimized to offer high data rates with high terminal mobility by ensuring strict synchronism and perfect orthogonality. However, the trend for novel applications, that had not…

Information Theory · Computer Science 2015-12-15 Zeineb Hraiech , Mohamed Siala , Fatma Adelkefi

Orthogonal time frequency space (OTFS) modulation is a robust candidate waveform for future wireless systems, particularly in high-mobility scenarios, as it effectively mitigates the impact of rapidly time-varying channels by mapping…

Signal Processing · Electrical Eng. & Systems 2026-01-12 Meiwen Men , Tao Zhou , Kaifeng Bao , Zhiyang Guo , Yongning Qi , Liu Liu , Bo Ai

In this work, we propose the orthogonal delay-Doppler (DD) division multiplexing (ODDM) modulation with frequency modulated continuous wave (FMCW) (ODDM-FMCW) waveform to enable integrated sensing and communication (ISAC) with a low…

Signal Processing · Electrical Eng. & Systems 2026-02-03 Kehan Huang , Akram Shafie , Min Qiu , Elias Aboutanios , Jinhong Yuan

As a promising technique for high-mobility wireless communications, orthogonal time frequency space (OTFS) has been proved to enjoy excellent advantages with respect to traditional orthogonal frequency division multiplexing (OFDM). Although…

Data Structures and Algorithms · Computer Science 2023-06-22 Mi Qian , Fei Ji , Yao Ge , Miaowen Wen , Xiang Cheng , H. Vincent Poor

With the development of high speed trains (HST) in many countries, providing broadband wireless services in HSTs is becoming crucial. Orthogonal frequency-division multiplexing (OFDM) has been widely adopted for broadband wireless…

Signal Processing · Electrical Eng. & Systems 2020-03-06 Xiang Ren , Wen Chen , Meixia Tao

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

The next generation wireless communication networks are required to support high-mobility scenarios, such as reliable data transmission for high-speed railways. Nevertheless, widely utilized multi-carrier modulation, the orthogonal…

Signal Processing · Electrical Eng. & Systems 2024-03-22 Hengyu Zhang , Xuehan Wang , Jingbo Tan , Jintao Wang

The sixth generation (6G) systems will likely employ orthogonal frequency division multiplexing (OFDM) waveform for performing the joint task of sensing and communication. In this paper, we design an OFDM system for integrated sensing and…

Information Theory · Computer Science 2025-09-30 Vijaya Yajnanarayana , Philipp Geuer

4G/5G wireless standards use orthogonal frequency division multiplexing (OFDM) which is robust to frequency selectivity. Equalization is possible with a single tap filter, and low-complexity equalization makes OFDM an attractive physical…

Signal Processing · Electrical Eng. & Systems 2025-09-25 Sandesh Rao Mattu , Nishant Mehrotra , Saif Khan Mohammed , Venkatesh Khammammetti , Robert Calderbank

A promising waveform candidate for future joint sensing and communication systems is orthogonal frequencydivision multiplexing (OFDM). For such systems, supporting multiple transmit antennas requires multiplexing methods for the generation…

Information Theory · Computer Science 2023-03-23 Oliver Lang , Christian Hofbauer , Reinhard Feger , Mario Huemer

Nowadays, waveforms of integrated sensing and communication (ISAC) are almost based on conventional communication and sensing signal, which bounds both the communication and sensing performance. To deal with this issue, in this paper, a…

Signal Processing · Electrical Eng. & Systems 2026-02-25 Xi Nan , Rugui Yao , Ye Fan , Ruikang Zhong , Xiaoya Zuo , Theodoros A. Tsiftsis , Alexandros-Apostolos A. Boulogeorgos

Orthogonal time frequency space (OTFS) is a promising alternative to orthogonal frequency division multiplexing (OFDM) in high-mobility beyond 5G communications. In this paper, we consider the problem of radar sensing with OTFS joint…

Signal Processing · Electrical Eng. & Systems 2021-04-02 Musa Furkan Keskin , Henk Wymeersch , Alex Alvarado

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

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

Integrated Sensing and Communication (ISAC) systems are recognised as one of the key ingredients of the sixth generation (6G) network. A challenging topic in ISAC is the design of a single waveform combining both communication and sensing…

The orthogonal time frequency space (OTFS) modulation as a promising signal representation attracts growingcinterest for integrated sensing and communication (ISAC), yet its merits over orthogonal frequency division multiplexing (OFDM)…

Signal Processing · Electrical Eng. & Systems 2023-04-28 Bowen Wang , Jianchi Zhu , Xiaoming She , Peng Chen

In this paper, we consider a downlink orthogonal frequency division multiplexing (OFDM) system from a base station to a high-speed train (HST) equipped with fully/partly calibrated massive uniform linear antenna-array (ULA) in wireless…

Signal Processing · Electrical Eng. & Systems 2018-09-05 Yinghao Ge , Weile Zhang , Feifei Gao , Hlaing Minn

Orthogonal Frequency Division Multiplexing (OFDM)-based waveforms are used for communication links in many current and emerging Internet of Things (IoT) applications, including the latest WiFi standards. For such OFDM-based transceivers,…

The emerging orbital angular momentum (OAM) based wireless communication is expected to be a high spectrum-efficiency communication paradigm to solve the growing transmission data rate and limited bandwidth problem. Academic researchers…

Signal Processing · Electrical Eng. & Systems 2024-07-19 Liping Liang , Wenchi Cheng , Wei Zhang , Hailin Zhang
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