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We consider the problem of accurately localizing $N$ unmanned aerial vehicles (UAV) in 3D space where the UAVs are part of a swarm and communicate with each other through orthogonal time-frequency space (OTFS) modulated signals. The OTFS…

信息论 · 计算机科学 2025-02-18 Alessandro Nordio , Carla Fabiana Chiasserini , Emanuele Viterbo

In this paper, the displacement of the phase centers of multi-mode antennas is investigated. A mathematical approach is applied in order to calculate the positions of the phase center for each mode. Using electric far field samples obtained…

信号处理 · 电气工程与系统科学 2020-01-29 Sami Alkubti Almasri , Peter Adam Hoeher

Leveraging channel state information from multiple Wi-Fi bands can improve delay resolution for ranging and sensing when a wide contiguous spectrum is unavailable. However, frequency gaps shape the delay response, introducing sidelobes and…

信号处理 · 电气工程与系统科学 2026-02-23 Ana Jeknić , Aleš Švigelj , Tomaž Javornik , Andrej Hrovat

In this paper, considering multiple interference regions simultaneously, an optimal antenna deployment problem for distributed Multi-Input Multi-Output (MIMO) radar is investigated. The optimal antenna deployment problem is solved by…

信息论 · 计算机科学 2017-01-23 Tianxian Zhang , Jiadong Liang , Yichuan Yang , Guolong Cui , Lingjiang Kong , Xiaobo Yang

In this letter, we investigate the direction-of-arrival (DOA) estimation problem for wireless sensing with movable antenna (MA) systems in the presence of unknown antenna position errors (APE). To achieve robust wireless sensing, we…

信号处理 · 电气工程与系统科学 2026-05-25 Chengzhi Ye , Ruoyu Zhang , Wen Wu , Byonghyo Shim

In this paper, localization using narrowband communication signals are considered in the presence of fading channels with time of arrival measurements. When narrowband signals are used for localization, due to existing hardware constraints,…

信息论 · 计算机科学 2018-11-06 Xue Zhang , Cihan Tepedelenlioglu , Mahesh K. Banavar , Andreas Spanias , Gowtham Muniraju

Aiming for the sixth generation (6G) wireless communications, distributed massive multiple-input multiple-output (MIMO) systems hold significant potential for spatial multiplexing. In order to evaluate the ability of a distributed massive…

信号处理 · 电气工程与系统科学 2024-11-28 Yingjie Xu , Michiel Sandra , Xuesong Cai , Sara Willhammar , Fredrik Tufvesson

With the emergence of new application areas such as cyber-physical systems and human-in-the-loop applications ensuring a specific level of end-to-end network latency with high reliability (e.g., 99.9%) is becoming increasingly critical. To…

网络与互联网体系结构 · 计算机科学 2025-03-20 Samie Mostafavi , Gourav Prateek Sharma , Ahmad Traboulsi , James Gross

The combination of ultrawideband (UWB) radios and inertial measurement units (IMU) can provide accurate positioning in environments where the Global Positioning System (GPS) service is either unavailable or has unsatisfactory performance.…

机器人学 · 计算机科学 2021-08-03 Abhishek Goudar , Angela P. Schoellig

In time-division duplexing (TDD) systems, massive multiple-input multiple-output (MIMO) relies on the channel reciprocity to obtain the downlink (DL) channel state information (CSI) with the uplink (UL) CSI. In practice, the mismatches in…

信号处理 · 电气工程与系统科学 2018-11-15 Hanyu Zhu , Fuqian Yang , Zhaowei Zhu , Xiliang Luo

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

A promising waveform candidate for future joint sensing and communication systems is orthogonal frequencydivision multiplexing (OFDM). For such systems, supporting multiple transmit antennas requires multiplexing methods for the generation…

信息论 · 计算机科学 2023-03-23 Oliver Lang , Christian Hofbauer , Reinhard Feger , Mario Huemer

In Extensive Air Shower (EAS) experiments, the primary direction is reconstructed by the space-time pattern of secondary particles. Thus the equalization of the transit time of signals coming from different parts of the detector is crucial…

仪器与探测器 · 物理学 2009-09-29 H. H. He , P. Bernardini , A. K. Calabrese Melcarne , S. Z. Chen

The enormous success of advanced wireless devices is pushing the demand for higher wireless data rates. Denser spectrum reuse through the deployment of more access points per square mile has the potential to successfully meet the increasing…

网络与互联网体系结构 · 计算机科学 2012-08-15 Horia Vlad Balan , Ryan Rogalin , Antonios Michaloliakos , Konstantinos Psounis , Giuseppe Caire

Multi-tier networks with large-array base stations (BSs) that are able to operate in the "massive MIMO" regime are envisioned to play a key role in meeting the exploding wireless traffic demands. Operated over small cells with…

信息论 · 计算机科学 2015-05-05 Qiaoyang Ye , Ozgun Y. Bursalioglu , Haralabos C. Papadopoulos

This paper presents the formulation and analysis of a two time-scale optimization algorithm for multi-agent coordination for the purpose of distributed beamforming. Each agent is assumed to be randomly positioned with respect to each other…

信号处理 · 电气工程与系统科学 2019-09-25 Jemin George , Anjaly Parayil , He Bai

This paper introduces a system model called pilot-aided simultaneous communication and localisation (PASCAL) and illustrates its performance in the presence of practical gain and phase imperfections. Specifically, we consider the scenario…

信息论 · 计算机科学 2024-12-06 Shuaishuai Han , Mohammad Ahmad Al-Jarrah , Emad Alsusa

Hybrid beamforming via large antenna arrays has shown a great potential for increasing data rate in cellular networks by delivering multiple data streams simultaneously. In this paper, several beamforming design algorithms are proposed…

信息论 · 计算机科学 2018-02-06 Shahram Shahsavari , S. Amir Hosseini , Chris Ng , Elza Erkip

Accurate location information is essential for many wireless sensor network (WSN) applications. A location-aware WSN generally includes two types of nodes: sensors whose locations to be determined and anchors whose locations are known a…

网络与互联网体系结构 · 计算机科学 2014-03-17 Liang Heng , Grace Xingxin Gao

Movable antenna (MA) introduces a new degree of freedom for future wireless communication systems by enabling the adaptive adjustment of antenna positions. Its large-range movement renders wireless channels transmission into the near-field…

信息论 · 计算机科学 2026-01-14 Chongjia Sun , Ziwei Wan , Lipeng Zhu , Zhenyu Xiao , Zhen Gao , Rui Zhang