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Integrated sensing and communications (ISAC) has emerged as an intrinsic service of upcoming 6G wireless systems, enabling the reuse of communication signals for environmental sensing and supporting context-aware network functionalities.…

Signal Processing · Electrical Eng. & Systems 2026-04-13 Osmel Martínez Rosabal , Onel L. Alcaraz López

Integrated sensing and communications (ISAC) as one of the key technologies is capable of supporting high-speed communication and high-precision sensing for the upcoming 6G. This paper studies a waveform strategy by designing the orthogonal…

Signal Processing · Electrical Eng. & Systems 2024-11-13 Ming Lyu , Hao Chen , Dan Wang , Guangyin Feng , Chen Qiu , Xiaodong Xu

We propose a novel modulation scheme for intensity modulation and direct detection (IM/DD) based optical communication system employing orthogonal frequency division multiplexing (OFDM). This method utilizes the DC-bias, which typically is…

Information Theory · Computer Science 2014-10-28 Qian Gao , Chen Gong , Rui Wang , Zhengyuan Xu , Yingbo Hua

In the context of communication-centric integrated sensing and communication (ISAC), the orthogonal frequency division multiplexing (OFDM) waveform was proven to be optimal in minimizing ranging sidelobes when random signaling is used. A…

Signal Processing · Electrical Eng. & Systems 2025-05-06 Karim A. Said , Ibraheem Alturki , Husheng Li , Elizabeth Bentley , Lingjia Liu

Integrated sensing and communication (ISAC) is increasingly expected to operate under aggressive spectrum reuse, where co-channel orthogonal frequency division multiplexing (OFDM) interference can be catastrophic for data recovery on the…

Signal Processing · Electrical Eng. & Systems 2026-04-30 Henglin Pu , Ahmad Musallam , Husheng Li , Lajos Hanzo

Integrated sensing and communications (ISAC) is envisioned as a key technology for future wireless communications. In this paper, we consider a downlink monostatic ISAC system wherein the base station serves multiple communications users…

Information Theory · Computer Science 2024-07-30 Tianyu Fang , Nhan Thanh Nguyen , Markku Juntti

Orthogonal frequency division multiplexing - integrated sensing and communication (OFDM-ISAC) has emerged as a key enabler for future wireless networks, leveraging the widely adopted OFDM waveform to seamlessly integrate wireless…

Signal Processing · Electrical Eng. & Systems 2025-04-10 Peishi Li , Ming Li , Rang Liu , Qian Liu , A. Lee Swindlehurst

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…

Signal Processing · Electrical Eng. & Systems 2026-05-22 Bruno F. Costa , Anup Mishra , Israel Leyva-Mayorga , Taufik Abrão , Petar Popovski

This paper introduces the concept of Distributed Intelligent integrated Sensing and Communications (DISAC), which expands the capabilities of Integrated Sensing and Communications (ISAC) towards distributed architectures. Additionally, the…

This paper considers an affine frequency division multiplexing (AFDM)-based integrated sensing and communications (ISAC) system, where the AFDM waveform is used to simultaneously carry communications information and sense targets. To…

Signal Processing · Electrical Eng. & Systems 2022-08-30 Yuanhan Ni , Zulin Wang , Peng Yuan , Qin Huang

Integrated sensing and communication (ISAC) enables numerous innovative wireless applications. Communication-centric design is a practical choice for the construction of the sixth generation (6G) ISAC networks. Continuous-wave-based ISAC…

Information Theory · Computer Science 2025-05-27 Yifeng Xiong , Junsheng Mu , Shuangyang Li , Marco Lops , Jianhua Zhang

Integrated sensing and communication (ISAC) is considered as a promising solution for improving spectrum efficiency and relieving wireless spectrum congestion. This paper systematically introduces the evolutionary path of ISAC technologies,…

Signal Processing · Electrical Eng. & Systems 2023-05-16 Jinming Du , Yanqun Tang , Xizhang Wei , Jiaojiao Xiong , Jiajun Zhu , Haoran Yin , Chi Zhang , Haibo Chen

A point-to-point integrated sensing and communication (ISAC) system is considered where a transmitter conveys a message to a receiver over a discrete memoryless channel (DMC) and simultaneously estimates the state of the channel through the…

Information Theory · Computer Science 2025-01-14 Homa Nikbakht , Michèle Wigger , Shlomo Shamai , H. Vincent Poor

This paper introduces the distributed and intelligent integrated sensing and communications (DISAC) concept, a transformative approach for 6G wireless networks that extends the emerging concept of integrated sensing and communications…

Integrated sensing and communication will be a key feature of future mobile networks, enabling highly efficient systems and numerous new applications by leveraging communication signals for sensing. In this paper, we analyze the impact of…

Signal Processing · Electrical Eng. & Systems 2025-09-10 Felix Artmann , Daniel Gil Gaviria , Benedikt Geiger , Laurent Schmalen

Discrete affine Fourier transform spread affine frequency division multiplexing (DAFT-s-AFDM) is a promising waveform for integrated sensing and communication (ISAC) due to its low peak-to-average power ratio, robustness to Doppler shifts,…

Signal Processing · Electrical Eng. & Systems 2026-05-20 Shiqi Cui , Tianqi Mao , Fan Zhang , Zeping Sui , Christos Masouros , Zhaocheng Wang

This paper addresses the topic of integrated sensing and communications (ISAC) in 5G and emerging 6G wireless networks. ISAC systems operate within shared, congested or even contested spectrum, aiming to deliver high performance in both…

Signal Processing · Electrical Eng. & Systems 2024-06-27 Visa Koivunen , Musa Furkan Keskin , Henk Wymeersch , Mikko Valkama , Nuria González-Prelcic

Integrated sensing and communications (ISAC) is an essential technology for the 6G communication system, which enables the conventional wireless communication network capable of sensing targets around. The shared use of pilots is a…

Information Theory · Computer Science 2022-08-19 Jiamo Jiang , Mingfeng Xu , Zhongyuan Zhao , Kaifeng Han , Yang Li , Ying Du , Zhiqin Wang

Integrated Sensing and Communication (ISAC) is considered one of the crucial technologies in the upcoming sixth-generation (6G) mobile communication systems that could facilitate ultra-precise positioning of passive and active targets and…

Signal Processing · Electrical Eng. & Systems 2024-02-19 Maximiliano Rivera Figueroa , Pradyumna Kumar Bishoyi , Marina Petrova

The wireless domain is witnessing a flourishing of integrated systems, e.g. (a) integrated sensing and communications, and (b) simultaneous wireless information and power transfer, due to their potential to use resources (spectrum, power)…

Signal Processing · Electrical Eng. & Systems 2024-06-25 Yumeng Zhang , Sundar Aditya , Bruno Clerckx