no code implementations • 17 May 2024 • Zesong Fei, Shuntian Tang, Xinyi Wang, Fanghao Xia, Fan Liu, J. Andrew Zhang
Integrated sensing and communication (ISAC) is regarded as a promising technique for 6G communication network.
no code implementations • 14 Apr 2024 • Bai Yan, Qi Zhao, Jin Zhang, J. Andrew Zhang
This paper tackles the deployment challenges of Simultaneous Transmitting and Reflecting Reconfigurable Intelligent Surface (STAR-RIS) in communication systems.
no code implementations • 9 Apr 2024 • Aimin Tang, Xudong Wang, J. Andrew Zhang
In this article, we provide an overview of full-duplex ISAC (FD-ISAC), where a full-duplex radio is used for both wireless sensing and full-duplex communications in B5G/6G networks, with a focus on the fundamental interference management problem in such networks.
no code implementations • 9 Mar 2024 • Jingbo Zhao, Zhaoming Lu, J. Andrew Zhang, Weicai Li, Yifeng Xiong, Zijun Han, Xiangming Wen, Tao Gu
This document contains the appendices for our paper titled ``Performance Bounds for Passive Sensing in Asynchronous ISAC Systems."
no code implementations • 14 Feb 2024 • Kai Wu, Jacopo Pegoraro, Francesca Meneghello, J. Andrew Zhang, Jesus O. Lacruz, Joerg Widmer, Francesco Restuccia, Michele Rossi, Xiaojing Huang, Daqing Zhang, Giuseppe Caire, Y. Jay Guo
Integrated Sensing and Communications (ISAC) has been identified as a pillar usage scenario for the impending 6G era.
no code implementations • 17 Jan 2024 • Yanmo Hu, J. Andrew Zhang, Weibo Deng, Y. Jay Guo
The estimates from the first algorithm are then used to compensate for the offsets and generate the angle-Doppler maps.
no code implementations • 19 May 2023 • Xi Yang, Hang Li, Qinghua Guo, J. Andrew Zhang, Xiaojing Huang, Zhiqun Cheng
In this work, we study sensing-aided uplink transmission in an integrated sensing and communication (ISAC) vehicular network with the use of orthogonal time frequency space (OTFS) modulation.
no code implementations • 20 Apr 2023 • Yingqi Wang, Zhongqin Wang, J. Andrew Zhang, Haimin Zhang, Min Xu
Contact-free vital sign monitoring, which uses wireless signals for recognizing human vital signs (i. e, breath and heartbeat), is an attractive solution to health and security.
no code implementations • 3 Mar 2023 • Yongqing Xu, Yong Li, J. Andrew Zhang, Marco Di Renzo, Tony Q. S. Quek
However, due to multiple performance metrics used for communication and sensing, the limited degrees-of-freedom (DoF) in optimizing ISAC systems poses a challenge.
no code implementations • 13 Feb 2023 • Zesong Fei, Xinyi Wang, Nan Wu, Jingxuan Huang, J. Andrew Zhang
The air-ground integrated sensing and communications (AG-ISAC) network, which consists of unmanned aerial vehicles (UAVs) and ground terrestrial networks, offers unique capabilities and demands special design techniques.
no code implementations • 27 Jan 2023 • Jiangtao Liu, Kai Wu, Tao Su, J. Andrew Zhang
Joint radar and communications (JRC) can realize two radio frequency (RF) functions using one set of resources, greatly saving hardware, energy and spectrum for wireless systems needing both functions.
no code implementations • 21 Aug 2022 • Kai Wu, J. Andrew Zhang, Zhitong Ni, Xiaojing Huang, Y. Jay Guo, Shanzhi Chen
We establish an optimization problem that modifies data symbols on sub-carriers to enhance the above-mentioned signal orthogonality.
no code implementations • 21 Aug 2022 • Kai Wu, J. Andrew Zhang, Xiaojing Huang, Robert W. Heath Jr., Y. Jay Guo
Most existing JCAS designs are based on digital arrays, analog arrays with tunable phase shifters, or hybrid arrays, which are effective but are generally complicated to design and power inefficient.
no code implementations • 21 Aug 2022 • Kai Wu, J. Andrew Zhang, Xiaojing Huang, Y. Jay Guo, Lajos Hanzo
We then exploit its beneficial properties for substantially simplifying the joint user and beam selection problem.
no code implementations • 26 Apr 2022 • Linh Manh Hoang, J. Andrew Zhang, Diep N. Nguyen, Dinh Thai Hoang
Frequency-hopping (FH) joint radar-communications (JRC) can offer excellent security for integrated sensing and communication systems.
no code implementations • 30 Mar 2022 • J. Andrew Zhang, Kai Wu, Xiaojing Huang, Y. Jay Guo, Daqing Zhang, Robert W. Heath Jr
Clock asynchronism is a critical issue in integrating radar sensing into communication networks.
no code implementations • 15 Mar 2022 • Kai Wu, J. Andrew Zhang, Y. Jay Guo
Fitting experiment data onto a curve is a common signal processing technique to extract data features and establish the relationship between variables.
no code implementations • 19 Feb 2022 • Xinyu Li, Yuanhao Cui, J. Andrew Zhang, Fan Liu, Daqing Zhang, Lajos Hanzo
In this article, we provide a review of human related sensing in the context of ISAC.
no code implementations • 8 Feb 2022 • Linh Manh Hoang, Diep N. Nguyen, J. Andrew Zhang, Dinh Thai Hoang
Specifically, recent studies reveal that by deliberately varying the correlations among jamming signals, attackers can effectively vary the jamming channels and thus their nullspace, even when the physical channels remain unchanged.
no code implementations • 6 Nov 2021 • Kai Wu, J. Andrew Zhang, Xiaojing Huang, Y. Jay Guo
To meet the ever-increasing demands on better wireless communications for IIoT, we propose an orthogonal time-frequency space (OTFS) waveform-based joint communication and radio sensing (JCAS) scheme -- an energy-efficient solution for not only reliable communications but also high-accuracy sensing.
no code implementations • 19 Sep 2021 • Bai Yan, Qi Zhao, Jin Zhang, J. Andrew Zhang, Xin Yao
To investigate the number and distribution of local optima, we conduct a fitness landscape analysis on the sum rate maximization problems.
no code implementations • 9 Sep 2021 • Kai Wu, J. Andrew Zhang, Xiaojing Huang, Y. Jay Guo
Extensive simulations validate the superiority of the proposed sensing framework over prior methods in terms of signal-to-IN ratios in RDMs, detecting performance and flexibility.
no code implementations • 14 Jun 2021 • Bai Yan, Qi Zhao, Jin Zhang, J. Andrew Zhang, Xin Yao
We formulate a multiobjective off-grid DOA estimation model to realize this idea, by which the source number can be automatically identified together with DOA estimation.
no code implementations • 14 Jun 2021 • Bai Yan, Qi Zhao, Jin Zhang, J. Andrew Zhang, Xin Yao
To overcome the above shortcomings of relaxation, we propose a novel idea of simultaneously estimating the frequencies and model order by means of the atomic $l_0$ norm.
no code implementations • 28 May 2021 • Kai Wu, J. Andrew Zhang, Xiaojing Huang, Y. Jay Guo
OFDM sensing is gaining increasing popularity in wideband radar applications as well as in joint communication and radar/radio sensing (JCAS).
no code implementations • 28 May 2021 • Kai Wu, J. Andrew Zhang, Xiaojing Huang, Y. Jay Guo
Frequency estimation is a fundamental problem in many areas.
1 code implementation • 25 Feb 2021 • J. Andrew Zhang, Fan Liu, Christos Masouros, Robert W. Heath Jr., Zhiyong Feng, Le Zheng, Athina Petropulu
Joint communication and radar sensing (JCR) represents an emerging research field aiming to integrate the above two functionalities into a single system, sharing a majority of hardware and signal processing modules and, in a typical case, sharing a single transmitted signal.
no code implementations • 22 Nov 2020 • Zhitong Ni, J. Andrew Zhang, Kai Yang, Xiaojing Huang, Theodoros A. Tsiftsis
For radar sensing, we consider optimizing one of two metrics, the mutual information or the Cramer-Rao bound.
no code implementations • 18 Nov 2020 • Zhitong Ni, J. Andrew Zhang, Xiaojing Huang, Kai Yang, Jinhong Yuan
We first adopt a cross-antenna cross-correlation (CACC) operation to remove the sensing ambiguity associated with both TOs and CFOs.
no code implementations • 19 Oct 2020 • Kai Wu, J. Andrew Zhang, Xiaojing Huang, Y. Jay Guo
Enabled by the advancement in radio frequency technologies, the convergence of radar and communication systems becomes increasingly promising and is envisioned as a key feature of future 6G networks.
no code implementations • 29 Sep 2020 • Kai Wu, J. Andrew Zhang, Xiaojing Huang, Y. Jay Guo, Robert W. Heath Jr
In this paper, we develop accurate methods for a single-antenna communication receiver to estimate timing offset and channel for FH-MIMO DFRC.
no code implementations • 29 Sep 2020 • Kai Wu, J. Andrew Zhang, Xiaojing Huang, Y. Jay Guo
How to enhance the physical layer security of FH-MIMO DFRC is vital yet unsolved.
no code implementations • 10 Sep 2020 • Zhipeng Lin, Tiejun Lv, Wei Ni, J. Andrew Zhang, Ren Ping Liu
Channel estimation is challenging for hybrid millimeter wave (mmWave) large-scale antenna arrays which are promising in 5G/B5G applications.
Signal Processing
no code implementations • 20 Jul 2020 • Zhipeng Lin, Tiejun Lv, Wei Ni, J. Andrew Zhang, Ren Ping Liu
As a result, only a small number of RF chains are required to preserve the DoF of the UCyA.
no code implementations • 13 Jun 2020 • J. Andrew Zhang, Md Lushanur Rahman, Kai Wu, Xiaojing Huang, Y. Jay Guo, Shanzhi Chen, Jinhong Yuan
We then introduce a framework of PMN, including the system platform and infrastructure, three types of sensing operations, and signals usable for sensing.