no code implementations • 17 Jan 2024 • XiaoYu Zhang, Haobo Zhang, Ruoqi Deng, Liang Liu, Boya Di
Multi-target detection is one of the primary tasks in radar-based localization and sensing, typically built on phased array antennas.
no code implementations • 12 Jan 2024 • Mengyuan Cao, Haobo Zhang, Boya Di, Hongliang Zhang
In this paper, a unified NF and FF localization method is proposed for the RIS-enabled localization system to overcome the above issue.
no code implementations • 7 Jan 2024 • Haobo Zhang, Ziang Yang, Hongliang Zhang, Boya Di, Lingyang Song
As a crucial facilitator of future autonomous driving applications, wireless simultaneous localization and mapping (SLAM) has drawn growing attention recently.
no code implementations • 4 May 2023 • QiPeng Wang, Liang Liu, Shuowen Zhang, Boya Di, Francis C. M. Lau
In this paper, we show that the distance between a target and its associated IRS can be indirectly estimated based on the length of the BS-target-BS path and the BS-target-IRS-BS path.
no code implementations • 28 Dec 2022 • Ruoqi Deng, Yutong Zhang, Haobo Zhang, Boya Di, Hongliang Zhang, Lingyang Song
Ultra-massive multiple-input multiple-output (MIMO) is one of the key enablers in the forthcoming 6G networks to provide high-speed data services by exploiting spatial diversity.
no code implementations • 16 Nov 2022 • Haobo Zhang, Hongliang Zhang, Boya Di, Lingyang Song
We first introduce the hardware structure and working principle of the RHS and then propose a novel holographic beamforming scheme for ISAC.
no code implementations • 6 Nov 2022 • Shaohua Yue, Shuhao Zeng, Hongliang Zhang, Fenghan Lin, Liang Liu, Boya Di
Intelligent omni-surfaces (IOS) have attracted great attention recently due to its potential to achieve full-dimensional communications by simultaneously reflecting and refracting signals toward both sides of the surface.
no code implementations • 26 Jun 2022 • Jingzhi Hu, Hongliang Zhang, Boya Di, Zhu Han, H. Vincent Poor, Lingyang Song
However, to maximize the sensing accuracy, the structures of meta-IoT sensors need to be optimized considering their joint influence on sensing and transmission, which is challenging due to the high computational complexity in evaluating the influence, especially given a large number of sensors.
no code implementations • 25 Feb 2022 • Haobo Zhang, Hongliang Zhang, Boya Di, Kaigui Bian, Zhu Han, Lingyang Song
To address this issue, we propose to use the reconfigurable intelligent surface (RIS) to improve the detection accuracy of radar systems due to its capability to customize channel conditions by adjusting its phase shifts, which is referred to as MetaRadar.
no code implementations • 13 Dec 2021 • Ruoqi Deng, Boya Di, Hongliang Zhang, Dusit Niyato, Zhu Han, H. Vincent Poor, Lingyang Song
Future wireless communications look forward to constructing a ubiquitous intelligent information network with high data rates through cost-efficient devices.
no code implementations • 6 Jul 2021 • Wenwei Zhang, Ruoqi Deng, Boya Di, Lingyang Song
The recent development of high-altitude platforms (HAPs) has attracted increasing attention since they can serve as a promising communication method to assist satellite-terrestrial networks.
no code implementations • 4 Jul 2021 • Ziang Yang, Haobo Zhang, Boya Di, Hongliang Zhang, Kaigui Bian, Lingyang Song
In this paper, we propose a novel SLAM system assisted by a reconfigurable intelligent surface (RIS) to address this issue.
no code implementations • 3 Jul 2021 • Jingzhi Hu, Hongliang Zhang, Boya Di, Kaigui Bian, Lingyang Song
In the coming 6G communications, the internet of things (IoT) serves as a key enabler to collect environmental information and is expected to achieve ubiquitous deployment.
no code implementations • 3 Jul 2021 • Xu Liu, Jingzhi Hu, Hongliang Zhang, Boya Di, Lingyang Song
It is a challenge to optimize the positions of the Meta-IoT devices to ensure sensing accuracy of 3D environmental conditions.
no code implementations • 18 Nov 2020 • Haobo Zhang, Hongliang Zhang, Boya Di, Kaigui Bian, Zhu Han, Lingyang Song
As the RIS is able to customize the radio channels by adjusting the phase shifts of the signals reflected at the surface, the localization accuracy in the RIS aided scheme can be improved by choosing the proper phase shifts with significant differences of RSS values among adjacent locations.
no code implementations • 2 Nov 2020 • Shuhang Zhang, Hongliang Zhang, Boya Di, Yunhua Tan, Marco Di Renzo, Zhu Han, H. Vincent Poor, Lingyang Song
Intelligent reflecting surface (IRS), which is capable to adjust propagation conditions by controlling phase shifts of the reflected waves that impinge on the surface, has been widely analyzed for enhancing the performance of wireless systems.
no code implementations • 15 Sep 2020 • Shuhang Zhang, Hongliang Zhang, Boya Di, Yunhua Tan, Zhu Han, Lingyang Song
In this paper, we study an intelligent omni-surface (IOS)-assisted downlink communication system, where the link quality of a mobile user (MU) can be improved with a proper IOS phase shift design.
Signal Processing
no code implementations • 6 Aug 2020 • Haobo Zhang, Jingzhi Hu, Hongliang Zhang, Boya Di, Kaigui Bian, Zhu Han, Lingyang Song
However, in MetaRadar, it is challenging to build radio maps for all the radio environments generated by metamaterial units and select suitable maps from all the possible maps to realize a high accuracy localization.
no code implementations • 10 Jul 2020 • Haobo Zhang, Hongliang Zhang, Boya Di, Kaigui Bian, Zhu Han, Lingyang Song
The received signal strength (RSS) based technique is widely utilized for ubiquitous positioning due to its advantage of simple implementability.