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Integrated sensing and communication (ISAC) is considered as the potential key technology of the future mobile communication systems. The signal design is fundamental for the ISAC system. The reference signals in mobile communication…

信息论 · 计算机科学 2024-03-05 Zhiqing Wei , Fengyun Li , Haotian Liu , Xu Chen , Huici Wu , Kaifeng Han , Zhiyong Feng

Integrated sensing and communications (ISAC) is potentially capable of circumventing the limitations of existing frequency-division sensing and communications (FDSAC) techniques. Hence, it has recently attracted significant attention. This…

信息论 · 计算机科学 2022-08-09 Chongjun Ouyang , Yuanwei Liu , Hongwen Yang , Naofal Al-Dhahir

This paper investigates the system design and experimental validation of integrated sensing and communication (ISAC) for environmental sensing, which is expected to be a critical enabler for next-generation wireless networks. We advocate…

信号处理 · 电气工程与系统科学 2025-07-03 Jun Wu , Yuye Shi , Weijie Yuan , Qingqing Cheng , Buyi Li , Xinyuan Wei

Integrated sensing and communication (ISAC) unifies radar sensing and communication, and improves the efficiency of the spectrum, energy and hardware. In this paper, we investigate the ISAC beamforming design in a downlink system with a…

信号处理 · 电气工程与系统科学 2022-11-09 Jin Li , Nan Liu

This paper presents a systematic analysis of inter-symbol and inter-carrier interference (ISCI) modeling in doubly dispersive channels for integrated sensing and communication (ISAC) systems. We propose a generalized OFDM (Weyl-Heisenberg)…

信号处理 · 电气工程与系统科学 2025-11-13 Xuyao Yu , Zijun Gong , Zhilu Lai

Affine Frequency Division Multiplexing (AFDM) has been proposed as an effective waveform for achieving the full diversity of doubly-dispersive (delay-Doppler) channels. While this property is closely related to range and velocity estimation…

信息论 · 计算机科学 2025-11-07 Ali Bemani , Nassar Ksairi , Marios Kountouris

The in-band Full Duplex (FD) technology is lately gaining attention as an enabler for the emerging paradigm of Integrated Sensing and Communications (ISAC), which envisions seamless integration of sensing mechanisms for unconnected entities…

信息论 · 计算机科学 2025-07-18 George C. Alexandropoulos , Ioannis Gavras

Receivers with joint channel estimation and signal detection using superimposed pilots (SP) can achieve high transmission efficiency in orthogonal time frequency space (OTFS) systems. However, existing receivers have high computational…

信息论 · 计算机科学 2024-04-16 Fupeng Huang , Qinghua Guo , Youwen Zhang , Yuriy Zakharov

Integrated sensing and communication (ISAC) in monostatic in-band full-duplex (IBFD) systems encounters significant challenges due to self-interference (SI) at the radar receiver during concurrent communication and radar operations. This…

信号处理 · 电气工程与系统科学 2025-10-16 Abdelali Arous , Hamza Haif , Huseyin Arslan

This paper focuses on an integrated sensing and communication (ISAC) system in the presence of signal-dependent modulated jamming (SDMJ). Our goal is to suppress jamming while carrying out simultaneous communications and sensing. We…

信号处理 · 电气工程与系统科学 2025-03-20 Yu Zhou , Qiao Shi , Zhengchun Zhou , Zilong Liu , Pingzhi Fan

Integrated sensing and communications (ISAC) is considered an innovative technology in sixth-generation (6G) wireless networks, where utilizing orthogonal frequency division multiplexing (OFDM) communication signals for sensing provides a…

信号处理 · 电气工程与系统科学 2025-10-15 Zhen Du , Jingjing Xu , Yifeng Xiong , Jie Wang , Musa Furkan Keskin , Henk Wymeersch , Fan Liu , Shi Jin

This paper investigates subspace-based target detection in OFDM integrated sensing and communications (ISAC) systems, considering the impact of various constellations. To meet diverse communication demands, different constellation schemes…

信号处理 · 电气工程与系统科学 2024-01-31 Yangming Lai , Musa Furkan Keskin , Henk Wymeersch , Luca Venturino , Wei Yi , Lingjiang Kong

We study uplink orthogonal frequency-division multiplexing (OFDM) pilot distortion to deliberately obfuscate time-of-arrival (ToA) estimation at a single base station while preserving communication performance. We design a complex…

信号处理 · 电气工程与系统科学 2025-10-29 Mahmut Kemal Ercan , Alireza Pourafzal , Musa Furkan Keskin , Sinan Gezici , Henk Wymeersch

Dual-function radar-communication (DFRC) systems, which can efficiently utilize the congested spectrum and costly hardware resources by employing one common waveform for both sensing and communication (S&C), have attracted increasing…

信息论 · 计算机科学 2022-08-08 Zichao Xiao , Rang Liu , Ming Li , Yang Liu , Qian Liu

Integrated Sensing and Communication(ISAC) has become a key technology for the 5th generation (5G) and 6th generation (6G) wireless communications due to its high spectrum utilization efficiency. Utilizing infrastructure such as 5G Base…

信号处理 · 电气工程与系统科学 2023-12-04 Bohao Lu , Zhiqing Wei , Lin Wang , Ruiyun Zhang , Zhiyong Feng

This paper considers an integrated sensing and communication (ISAC) system with monostatic radar functionality using a zero-padding orthogonal frequency division multiplexing (ZP-OFDM) downlink transmission. We focus on ISAC's sensing…

信号处理 · 电气工程与系统科学 2024-02-02 Roberto Bomfin , Marwa Chafii

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…

信号处理 · 电气工程与系统科学 2023-12-21 Zelin Hu , Qibin Ye , Yixuan Huang , Su Hu , Gang Yang

Integrated sensing and communications (ISAC) is widely recognized as a pivotal and emerging technology for the next-generation mobile communication systems. However, how to optimize the time-frequency domain radio resource distribution for…

信号处理 · 电气工程与系统科学 2024-07-18 Xiao-Yang Wang , Shaoshi Yang , Kaitao Meng , Hou-Yu Zhai , Christos Masouros

Achieving effective uplink bistatic ISAC over an OFDM waveform gives rise to challenging interference structures. These are mostly due to unequal direct- and echo-path contributions and Doppler-induced ICI, rendering orthogonal resource…

信号处理 · 电气工程与系统科学 2026-05-22 Bruno F. Costa , Anup Mishra , Israel Leyva-Mayorga , Taufik Abrão , Petar Popovski

In this paper, we shed light on the performance gain of integrated sensing and communications (ISAC) from the perspective of channel correlations between radar sensing and communication (S&C), namely ISAC subspace correlation. To begin…

信号处理 · 电气工程与系统科学 2022-11-03 Shihang Lu , Xiao Meng , Zhen Du , Yifeng Xiong , Fan Liu