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Integrated sensing and communication (ISAC) is a novel capability expected for sixth generation (6G) cellular networks. To that end, several challenges must be addressed to enable both mono- and bistatic sensing in existing deployments. A…

Signal Processing · Electrical Eng. & Systems 2024-10-22 Lucas Giroto de Oliveira , Yueheng Li , Benedikt Geiger , Laurent Schmalen , Thomas Zwick , Benjamin Nuss

In this paper, we propose a novel integrated sensing and communication (ISAC) transmission framework based on the spatially-spread orthogonal time frequency space (SS-OTFS) modulation by considering the fact that communication channel…

Information Theory · Computer Science 2021-09-02 Shuangyang Li , Weijie Yuan , Chang Liu , Zhiqiang Wei , Jinhong Yuan , Baoming Bai , Derrick Wing Kwan Ng

In this paper, we investigate the joint spectrum sensing and resource allocation problem to maximize throughput capacity of an OFDM-based cognitive radio link with a cognitive relay. By applying a cognitive relay that uses decode and…

Information Theory · Computer Science 2015-11-16 S. Eman Mahmoodi , K. P. Subbalakshmi , R. Chandramouli , Bahman Abolhassani

Optical wireless communication (OWC) systems are a promising communication technology that can provide high data rates into the tens of Tb/s and can support multiple users at the same time. This paper investigates the optimum allocation of…

Signal Processing · Electrical Eng. & Systems 2020-01-09 Osama Alsulami , Amal Alahmadi , Sarah Saeed , Sana Hamid Mohamed , Taisir El-Gorashi , Mohammed Alresheedi , Jaafar Elmirghani

In this paper, we propose a resource allocation framework for federated learning (FL) in integrated sensing and communication (ISAC) systems, where we consider not only the reliability of model transfer through communication, but also the…

Signal Processing · Electrical Eng. & Systems 2026-05-13 Lai Jiang , Kaitao Meng , Murat Temiz , Christos Masouros

Integrated sensing and communication (ISAC) will greatly enhance the efficiency of physical resource utilization. The design of ISAC signal based on the orthogonal frequency division multiplex (OFDM) signal is the mainstream. However, when…

Signal Processing · Electrical Eng. & Systems 2023-07-14 Lin Wang , Zhiqing Wei , Liyan Su , Zhiyong Feng , Huici Wu , Dongsheng Xue

A distributed integrated sensing and communication (D-ISAC) system offers significant cooperative gains for both sensing and communication performance. These gains, however, can only be fully realized when the distributed nodes are…

Signal Processing · Electrical Eng. & Systems 2025-03-13 Kawon Han , Kaitao Meng , Christos Masouros

Extended ambiguity performance (EAP), which includes all grating lobes and side peaks, indicates the maximum detectable region without undesired peaks for target parameter estimation and is critical to radar sensor design. Driven by EAP…

Signal Processing · Electrical Eng. & Systems 2024-11-14 Rui Zhang , Shawn Tsai , Tzu-Han Chou , Jiaying Ren , Wenze Qu , Oliver Sun

A key challenge in integrated sensing and communications (ISAC) is the synthesis of waveforms that can modulate communication messages and achieve good sensing performance simultaneously. In ISAC systems, standard communication waveforms…

Signal Processing · Electrical Eng. & Systems 2026-02-24 Henglin Pu , Husheng Li , Zhu Han , H. Vincent Poor

Integrated Sensing and Communication (ISAC) systems face stringent hardware constraints, particularly regarding the high Peak-to-Average Power Ratio (PAPR) of standard OFDM, which necessitates power amplifier (PA) back-off and reduces…

Signal Processing · Electrical Eng. & Systems 2026-03-12 Amir Bouziane , Huseyin Arslan

We propose deep learning based coded waveform design for integrated sensing and communication (ISAC) with orthogonal frequency-division multiplexing (OFDM). Our goal is to design a coded waveform capable of delivering accurate target…

Signal Processing · Electrical Eng. & Systems 2025-10-01 Chenghong Bian , Yumeng Zhang , Meng Hua , Kaitao Meng , Deniz Gunduz

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

This paper presents a unified and system-agnostic analysis of the ambiguity function (AF) characteristics of four representative multicarrier waveforms, orthogonal frequency division multiplexing (OFDM), orthogonal time frequency space…

Signal Processing · Electrical Eng. & Systems 2025-10-14 Hyeon Seok Rou , Giuseppe Thadeu Freitas de Abreu

Integrated sensing and communication (ISAC) is envisioned to be one of the key usage scenarios for the sixth generation (6G) mobile communication networks. While significant progresses have been achieved for the theoretical studies, the…

Signal Processing · Electrical Eng. & Systems 2026-01-08 Zhiwen Zhou , Chaoyue Zhang , Xiaoli Xu , Yong Zeng

This paper investigates the resource allocation algorithm design for intelligent reflecting surface (IRS) aided multiple-input single-output (MISO) orthogonal frequency division multiple access (OFDMA) multicell networks, where a set of…

Information Theory · Computer Science 2020-10-16 Walid R. Ghanem , Vahid Jamali , Robert Schober

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

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…

Information Theory · Computer Science 2022-08-08 Zichao Xiao , Rang Liu , Ming Li , Yang Liu , Qian Liu

In relay-aided wireless transmission systems, one of the key issues is how to decide assisting relays and manage the energy resource at the source and each individual relay, to maximize a certain objective related to system performance.…

Information Theory · Computer Science 2015-03-19 Tao Wang , Luc Vandendorpe

Future 6G networks are expected to empower communication systems by integrating sensing capabilities, resulting in integrated sensing and communication (ISAC) systems. However, this integration may exacerbate the data traffic congestion in…

Signal Processing · Electrical Eng. & Systems 2024-12-31 Lu Wang , Luis F. Abanto-Leon

Spectrally and energy efficient orthogonal frequency division multiplexing (SEE-OFDM) is an optical OFDM technique based on combining multiple asymmetrically clipped optical OFDM (ACO-OFDM) signals into one OFDM signal. By summing different…

Information Theory · Computer Science 2015-10-29 Emily Lam , Sarah Kate Wilson , Hany Elgala , Thomas D. C. Little
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