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Backscatter communication (BC) becomes a promising energy-efficient solution for future wireless sensor networks (WSNs). Unmanned aerial vehicles (UAVs) enable flexible data collection from remote backscatter devices (BDs), yet conventional…

Signal Processing · Electrical Eng. & Systems 2024-11-22 Yu Bai , Boxuan Xie , Ruifan Zhu , Zheng Chang , Riku Jantti

Relay-enabled backscatter communication (BC) is an intriguing paradigm to alleviate energy shortage and improve throughput of Internet-of-Things (IoT) devices. Most of the existing works focus on the resource allocation that considered the…

Information Theory · Computer Science 2023-07-27 Rui Xu , Liqin Shi , Yinghui Ye , Haijian Sun , Gan Zheng

Although LoRa is predominantly employed with the single-hop LoRaWAN protocol, recent advancements have extended its application to multi-hop mesh topologies. Designing efficient routing for LoRa mesh networks remains challenging due to…

Networking and Internet Architecture · Computer Science 2025-10-07 Nalith Udugampola , Xiaoyu Ai , Binghao Li , Henry Gong , Aruna Seneviratne

Intelligent reflecting surfaces (IRSs) are promising enablers for next-generation wireless communications due to their reconfigurability and high energy efficiency in improving poor propagation condition of channels, e.g., limited…

Information Theory · Computer Science 2022-01-03 Xin Zhang , Xianghao Yu , S. H. Song , Khaled B. Letaief

Movable antenna (MA) has been deemed as a promising technology to flexibly reconfigure wireless channels by adjusting the antenna positions in a given local region. In this paper, we investigate the application of the MA technology in both…

Signal Processing · Electrical Eng. & Systems 2025-07-31 Nianzu Li , Weidong Mei , Peiran Wu , Boyu Ning , Lipeng Zhu

Fluid antenna system (FAS)/movable antenna (MA) has emerged as a promising technology to fully exploit the spatial degrees of freedom (DoFs). In this paper, we propose a new rotatable antenna (RA) model, as a simplified implementation of…

Information Theory · Computer Science 2025-02-28 Qingjie Wu , Beixiong Zheng , Tiantian Ma , Rui Zhang

Low-power wide-area network (LPWAN) technologies featuring long-range communication capability and low power consumption will be important for forming the Internet of Things (IoT) consisting of many geographically distributed objects. Among…

Networking and Internet Architecture · Computer Science 2019-01-03 Chaojie Gu , Linshan Jiang , Rui Tan

Wireless networks that are decentralized and communicate without using existing infrastructure are known as mobile ad-hoc networks. The most common sorts of threats and attacks can affect MANETs. Therefore, it is advised to utilize…

Networking and Internet Architecture · Computer Science 2023-04-24 S. M. Udhaya Sankar , D. Dhinakaran , C. Cathrin Deboral , M. Ramakrishnan

This paper investigates the capabilities and effectiveness of backward localization centered on reconfigurable intelligent surfaces (RISs). In the backward sensing paradigm, the region of interest (RoI) is illuminated using a set of diverse…

Signal Processing · Electrical Eng. & Systems 2025-12-15 Fuhai Wang , Tiebin Mi , Chun Wang , Rujing Xiong , Zhengyu Wang , Robert Caiming Qiu

Owing to the ubiquity of cellular communication signals, positioning with the fifth generation (5G) signal has emerged as a promising solution in global navigation satellite system-denied areas. Unfortunately, although the widely employed…

Signal Processing · Electrical Eng. & Systems 2023-03-09 Mengguan Pan , Shengheng Liu , Peng Liu , Wangdong Qi , Yongming Huang , Wang Zheng , Qihui Wu , Markus Gardill

Movable antenna (MA) systems have recently attracted significant attention in the field of wireless communications owing to their exceptional capability to proactively reconfigure wireless channels via flexible antenna movements. In this…

Signal Processing · Electrical Eng. & Systems 2025-07-22 Nianzu Li , Peiran Wu , Lipeng Zhu , Weidong Mei , Boyu Ning , Derrick Wing Kwan Ng

The paper addresses the problem of determining the unknown position of a mobile station for a mmWave MISO system. This setup is motivated by the fact that massive arrays will be initially implemented only on 5G base stations, likely leaving…

Signal Processing · Electrical Eng. & Systems 2018-11-29 Alessio Fascista , Angelo Coluccia , Henk Wymeersch , Gonzalo Seco-Granados

Multipath-based simultaneous localization and mapping (MP-SLAM) is a promising approach in wireless networks for obtaining position information of transmitters and receivers as well as information on the propagation environment. MP-SLAM…

Signal Processing · Electrical Eng. & Systems 2024-05-15 Erik Leitinger , Lukas Wielandner , Alexander Venus , Klaus Witrisal

The extra degrees of freedom resulting from the consideration of Reconfigurable Intelligent Surfaces (RISs) for smart signal propagation can be exploited for high accuracy localization and tracking. In this paper, capitalizing on a recent…

Information Theory · Computer Science 2022-03-01 George C. Alexandropoulos , Ioanna Vinieratou , Henk Wymeersch

Accurate 3D localization is essential for realizing advanced sensing functionalities in next-generation Wi-Fi communication systems. This study investigates the potential of multistatic localization in Wi-Fi networks through the deployment…

Systems and Control · Electrical Eng. & Systems 2025-05-28 Fuhai Wang , Zhe Li , Rujing Xiong , Tiebin Mi , Robert Caiming Qiu

Fluid antennas (FAs) and movable antennas (MAs) have emerged as promising technologies in wireless communications, which offer the flexibility to improve channel conditions by adjusting transmit/receive antenna positions within a spatial…

Information Theory · Computer Science 2024-03-26 Weidong Mei , Xin Wei , Boyu Ning , Zhi Chen , Rui Zhang

Large-aperture coprime arrays (CAs) are expected to achieve higher sensing resolution than conventional dense arrays (DAs), yet with lower hardware and energy cost. However, existing CA far-field localization methods cannot be directly…

Signal Processing · Electrical Eng. & Systems 2024-11-05 Hongqiang Cheng , Changsheng You , Cong Zhou

Near-field beamfocusing enabled by extremely large-aperture arrays (ELAA) is a promising 6G technique for massive connectivity and high spectrum efficiency. While beamfocusing concentrates energy at an intended user, the radiated field…

Information Theory · Computer Science 2026-05-26 Shima Mashhadi , Tiep M. Hoang , Alireza Vahid

Movable-antenna (MA) arrays are envisioned as a promising technique for enhancing secrecy performance in wireless communications by leveraging additional spatial degrees of freedom. However, when the eavesdropper is located in the same…

Signal Processing · Electrical Eng. & Systems 2025-07-01 Chu Li , Marjan Boloori , Eduard Jorswieck , Aydin Sezgin

Millimeter wave signals and large antenna arrays are considered enabling technologies for future 5G networks. While their benefits for achieving high-data rate communications are well-known, their potential advantages for accurate…

Information Theory · Computer Science 2018-10-12 Arash Shahmansoori , Gabriel E. Garcia , Giuseppe Destino , Gonzalo Seco-Granados , Henk Wymeersch
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