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相关论文: Covert Beamforming Design for Integrated Radar Sen…

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Integrated sensing and communication (ISAC) is expected to be offered as a fundamental service in the upcoming sixth-generation (6G) communications standard. However, due to the exposure of information-bearing signals to the sensing…

信号处理 · 电气工程与系统科学 2023-05-09 Vaibhav Kumar , Marwa Chafii , A. Lee Swindlehurst , Le-Nam Tran , Mark F. Flanagan

In this paper, we study an intelligent reflecting surface (IRS)-aided radar-communication (Radcom) system, where the IRS is leveraged to help Radcom base station (BS) transmit the joint of communication signals and radar signals for serving…

信息论 · 计算机科学 2022-03-29 Meng Hua , Qingqing Wu , Chong He , Shaodan Ma , Wen Chen

A secure downlink transmission system which is exposed to multiple eavesdroppers and is appropriate for Internet of Things (IoT) applications is considered. A worst case scenario is assumed, in the sense that, in order to enhance their…

信号处理 · 电气工程与系统科学 2019-05-17 Pingmu Huang , Yunqin Hao , Tiejun Lv , Jintao Xing , Jie Yang , P. Takis Mathiopoulos

Integrated sensing and communication (ISAC) is a promising technique to provide sensing services in future wireless networks. Numerous existing works have adopted a monostatic radar architecture to realize ISAC, i.e., employing the same…

信息论 · 计算机科学 2023-05-17 Dongfang Xu , Chang Liu , Shenghui Song , Derrick Wing Kwan Ng

Integrated sensing and communication (ISAC) in the near-field regime offers the potential to jointly support high-rate downlink transmission and high-resolution multi-target detection by exploiting the spherical-wave nature of…

信号处理 · 电气工程与系统科学 2025-06-10 Hang Ruan , Homa Nikbakht , Ruizhi Zhang , Honglei Chen , Yonina C. Eldar

Integrated Sensing and Communication (ISAC) systems require efficient beamforming architectures to jointly support communication and sensing functionalities. To reduce hardware overhead, Hybrid Beamforming (HBF) has been widely studied and…

信号处理 · 电气工程与系统科学 2026-04-23 Jiangong Chen , Xia Lei , Yuchen Zhang , Kaitao Meng , Christos Masouros

This work investigates the fundamental limits of \emph{perfect} covert communication assisted by an Intelligent Reflecting Surface (IRS). We first characterize the necessary and sufficient conditions for perfect covertness, defined as zero…

信息论 · 计算机科学 2026-03-03 Or Elimelech , Asaf Cohen

This paper investigates multiuser multi-input single-output downlink symbiotic radio communication systems assisted by an intelligent reflecting surface (IRS). Different from existing methods ideally assuming the secondary user (SU) can…

信息论 · 计算机科学 2021-10-22 Shaokang Hu , Chang Liu , Zhiqiang Wei , Yuanxin Cai , Derrick Wing Kwan Ng , Jinhong Yuan

Active reconfigurable intelligent surfaces (RISs) can improve the performance of integrated sensing and communication (ISAC), and therefore enable simultaneous data transmission and target sensing. However, when the line-of-sight (LoS) link…

信号处理 · 电气工程与系统科学 2024-10-17 Ahmed Magbool , Vaibhav Kumar , Mark F. Flanagan

Various emerging applications in sixth-generation (6G) wireless demand a seamless integration of communication and sensing services, driving the development of integrated sensing and communication (ISAC) systems. Using a common waveform for…

信号处理 · 电气工程与系统科学 2025-03-25 Ainara Kazymova , Vaibhav Kumar , Christina Pöpper , Marwa Chafii

This paper investigates the system model and the transmit beamforming design for the Cell-Free massive multi-input multi-output (MIMO) integrated sensing and communication (ISAC) system. The impact of the uncertainty of the target locations…

信息论 · 计算机科学 2023-08-01 Weihao Mao , Yang Lu , Chong-Yung Chi , Bo Ai , Zhangdui Zhong , Zhiguo Ding

The integration of backscatter communication (BackCom) technology with integrated sensing and communication (ISAC) technology not only enhances the system sensing performance, but also enables low-power information transmission. This is…

信号处理 · 电气工程与系统科学 2024-11-04 Zongyao Zhao , Yuhan Dong , Tiankuo Wei , Xinke Tang , Xiao-Ping Zhang , Zhenyu Liu

This work focuses on the synergy of physical layer covert transmission and millimeter wave (mmWave) integrated sensing and communication (ISAC) to improve the performance, and enable secure internet of things (IoT) systems. Specifically, we…

信号处理 · 电气工程与系统科学 2025-07-08 Lingyun Xu , Bowen Wang , Ziyang Cheng

This paper studies the beamforming design problem of a multi-user downlink network, assuming imperfect channel state information known to the base station. In this scenario, the base station is equipped with multiple antennas, and each user…

信号处理 · 电气工程与系统科学 2020-03-25 Pu Zhao , Meng Zhang , Hui Yu , Hanwen Luo , Wen Chen

Dual-functional radar-communication (DFRC) is a promising new solution to simultaneously probe the radar target and transmit information in wireless networks. In this paper, we study the joint optimization of transmit and receive…

信息论 · 计算机科学 2020-09-09 Li Chen , Fan Liu , Jun Liu , Christos Masouros

Integrated sensing and communication (ISAC) is a key technology of next generation wireless communication. Backscatter communication (BackCom) plays an important role for internet of things (IoT). Then the integration of ISAC with BackCom…

信号处理 · 电气工程与系统科学 2024-09-06 Zongyao Zhao , Tiankuo Wei , Zhenyu Liu , Xinke Tang , Xiao-Ping Zhang , Yuhan Dong

A wireless network of multiple transmitter-user pairs overheard by an eavesdropper, where the transmitters are equipped with multiple antennas while the users and eavesdropper are equipped with a single antenna, is considered. At different…

信息论 · 计算机科学 2018-08-01 Zhichao Sheng , Hoang Duong Tuan , Trung Q. Duong , H. Vincent Poor

In this paper, we study optimal waveform design to maximize mutual information (MI) for a joint communication and (radio) sensing (JCAS, a.k.a., radar-communication) multi-input multi-output (MIMO) downlink system. We consider a typical…

信号处理 · 电气工程与系统科学 2020-02-04 Xin Yuan , Zhiyong Feng , J. Andrew Zhang , Wei Ni , Ren Ping Liu , Zhiqing Wei , Changqiao Xu

Designing unimodular waveforms with a desired beampattern, spectral occupancy and orthogonality level is of vital importance in the next generation Multiple-Input Multiple-Output (MIMO) radar systems. Motivated by this fact, in this paper,…

信号处理 · 电气工程与系统科学 2021-12-14 Ehsan Raei , Saeid Sedighi , Mohammad Alaee-Kerahroodi , M. R. Bhavani Shankar

A multiple-input single-output cognitive radio downlink network is studied with simultaneous wireless information and power transfer. In this network, a secondary user coexists with multiple primary users and multiple energy harvesting…

信息论 · 计算机科学 2016-02-23 Fuhui Zhou , Zan Li , Julian Cheng , Qunwei Li , Jiangbo Si