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相关论文: RIS-Enabled Joint Near-Field 3D Localization and S…

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We consider the problem of joint three-dimensional localization and synchronization for a single-input single-output (SISO) system in the presence of a reconfigurable intelligent surface (RIS), equipped with a uniform planar array. First,…

信号处理 · 电气工程与系统科学 2021-02-18 Kamran Keykhosravi , Musa Furkan Keskin , Gonzalo Seco-Granados , Henk Wymeersch

Reconfigurable Intelligent Surface (RIS) plays a pivotal role in the sixth generation networks to enhance communication rate and localization accuracy. In this letter, we propose a positioning algorithm in a RIS-assisted environment, where…

信号处理 · 电气工程与系统科学 2024-07-10 Sajjad Ghiasvand , Arash Nasri , Ali H. Abdollahi Bafghi , Masoumeh Nasiri-Kenari

The advent of 6G is expected to enable many use cases which may rely on accurate knowledge of the location and orientation of user equipment (UE). The conventional localization methods suffer from limitations such as synchronization and…

信号处理 · 电气工程与系统科学 2025-05-06 Srikar Sharma Sadhu , Praful D. Mankar , Santosh Nannuru

Reconfigurable intelligent surfaces (RISs) are considered as an enabling technology for the upcoming sixth generation of wireless systems, exhibiting significant potential for radio localization and sensing. An RIS is usually treated as an…

信号处理 · 电气工程与系统科学 2023-11-16 Reza Ghazalian , Hui Chen , George C. Alexandropoulos , Gonzalo Seco-Granados , Henk Wymeersch , Riku Jäntti

This letter investigates an uplink pilot-based wireless indoor localization problem in a multipath environment for a single-input single-output (SISO) narrowband communication system aided by reconfigurable intelligent surface (RIS). The…

信号处理 · 电气工程与系统科学 2024-07-10 Yinghan Li , Wei Yu

In this paper, we introduce the concept of partially-connected Receiving Reconfigurable Intelligent Surfaces (R-RISs), which refers to metasurfaces designed to efficiently sense electromagnetic waveforms impinging on them, and perform…

信号处理 · 电气工程与系统科学 2022-12-06 Jiguang He , Aymen Fakhreddine , Charles Vanwynsberghe , Henk Wymeersch , George C. Alexandropoulos

Reconfigurable intelligent surfaces (RISs) have attracted enormous interest thanks to their ability to overcome line-of-sight blockages in mmWave systems, enabling in turn accurate localization with minimal infrastructure. Less investigated…

信号处理 · 电气工程与系统科学 2022-09-14 Alessio Fascista , Musa Furkan Keskin , Angelo Coluccia , Henk Wymeersch , Gonzalo Seco-Granados

The technology of reconfigurable intelligent surfaces (RIS) has been showing promising potential in a variety of applications relying on Beyond-5G networks. Reconfigurable intelligent surface (RIS) can indeed provide fine channel…

The integration of reconfigurable intelligent surfaces (RIS) in wireless environments offers channel programmability and dynamic control over propagation channels, which is expected to play a crucial role in sixth generation (6G) networks.…

信号处理 · 电气工程与系统科学 2025-01-22 Anum Umer , Ivo Müürsepp , Muhammad Mahtab Alam

The received signal strength (RSS) based technique is extensively utilized for localization in the indoor environments. Since the RSS values of neighboring locations may be similar, the localization accuracy of the RSS based technique is…

信号处理 · 电气工程与系统科学 2023-03-27 Haobo Zhang , Hongliang Zhang , Boya Di , Kaigui Bian , Zhu Han , Lingyang Song

Near-field localization is expected to play a crucial role in enabling a plethora of applications under the paradigm of 6G networks. The conventional localization methods rely on complex infrastructure for providing cooperative anchor nodes…

信号处理 · 电气工程与系统科学 2026-05-06 Srikar Sharma Sadhu , Praful D. Mankar , Santosh Nannuru

Next-generation cellular networks will witness the creation of smart radio environments (SREs), where walls and objects can be coated with reconfigurable intelligent surfaces (RISs) to strengthen the communication and localization coverage…

信息论 · 计算机科学 2020-09-08 Ahmed Elzanaty , Anna Guerra , Francesco Guidi , Mohamed-Slim Alouini

The sparsity of millimeter wave (mmWave) channels in the angular and temporal domains is beneficial to channel estimation, while the associated channel parameters can be utilized for localization. However, line-of-sight (LoS) blockage poses…

信号处理 · 电气工程与系统科学 2024-02-27 Kunlun Li , Jiguang He , Mohammed El-Hajjar , Lie-Liang Yang

High-precision localization and environmental sensing are essential for a new wave of applications, ranging from industrial automation and autonomous systems to augmented reality and remote healthcare. Conventional wireless methods,…

The latest assessments of the emerging technologies for reconfigurable intelligent surfaces (RISs) have indicated the concept's significant potential for localization and sensing, either as individual or simultaneously realized tasks.…

Indoor wireless simultaneous localization and mapping (SLAM) is considered as a promising technique to provide positioning services in future 6G systems. However, the accuracy of traditional wireless SLAM system heavily relies on the…

信号处理 · 电气工程与系统科学 2021-07-06 Ziang Yang , Haobo Zhang , Boya Di , Hongliang Zhang , Kaigui Bian , Lingyang Song

Reconfigurable Intelligent Surfaces (RISs) are announced as a truly transformative technology, capable of smartly shaping wireless environments to optimize next-generation communication networks. Among their numerous foreseen applications,…

信号处理 · 电气工程与系统科学 2023-06-21 Moustafa Rahal , Benoit Denis , Taghrid Mazloum , Frederic Munoz , Raffaele D Errico

Reconfigurable intelligent surface (RIS) is considered to be an energy-efficient approach to reshape the wireless environment for improved throughput. Its passive feature greatly reduces the energy consumption, which makes RIS a promising…

信息论 · 计算机科学 2020-01-20 Keke Ying , Zhen Gao , Shanxiang Lyu , Yongpeng Wu , Hua Wang , Mohamed-Slim Alouini

Reconfigurable intelligent surfaces (RISs) are one of the foremost technological enablers of future wireless systems. They improve communication and localization by providing a strong non-line-of-sight path to the receiver. In this paper,…

信号处理 · 电气工程与系统科学 2022-04-26 Kamran Keykhosravi , Henk Wymeersch

In next-generation wireless networks, reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) systems are foreseeable to support a large number of antennas at the transceiver as well as a large number of…

信息论 · 计算机科学 2023-01-24 Chang Cai , Xiaojun Yuan , Ying-Jun Angela Zhang
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