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Accurately estimating the position of a wireless emitter in a multipath environment based on samples received at various base stations (in known locations) has been extensively explored in the literature. Existing approaches often assume…

信号处理 · 电气工程与系统科学 2024-10-15 Asaf Afriat , Dan Raphaeli , Oded Bialer

In this letter, we consider the multiple-input multiple-output (MIMO) radar waveform design in the presence of signal-dependent clutters and additive white Gaussian noise. By imposing the constant modulus constraint (CMC) and waveform…

信号处理 · 电气工程与系统科学 2018-05-11 Chenglin Ren , Fan liu , Longfei Zhou , Jianming Zhou , Wu Luo , Shengzhi Yang

Integrated passive radar (IPR) can be regarded as next generation passive radar technology, which aims to integrate communication and radar systems. Unlike conventional passive radar, which does not prioritize communication-centric radar…

信号处理 · 电气工程与系统科学 2024-02-27 Amir Zaimbashi , Maria Sabrina Greco , Fulvio Gini

In this paper, we propose a novel channel estimation algorithm based on the Least Square Estimation (LSE) and Sparse Message Passing algorithm (SMP), which is of special interest for Millimeter Wave (mmWave) systems, since this algorithm…

信息论 · 计算机科学 2016-09-13 Chongwen Huang , Lei Liu , Chau Yuen , Sumei Sun

This paper proposes a multistatic radar (MSR) system utilizing a distributed wireless synchronization protocol. The wireless synchronization protocol uses a two-tone waveform exchange for frequency synchronization and a bi-directional…

信号处理 · 电气工程与系统科学 2026-03-30 Kumar Sai Bondada , Daniel J. Jakubisin , R. Michael Buehrer

We consider the potential for positioning with a system where antenna arrays are deployed as a large intelligent surface (LIS), which is a newly proposed concept beyond massive-MIMO where future man-made structures are electronically active…

信息论 · 计算机科学 2018-03-14 Sha Hu , Fredrik Rusek , Ove Edfors

Integrated Sensing and Communications (ISAC) is regarded as a key element of the beyond-fifth-generation (5G) and sixth-generation (6G) systems, raising the question of whether current 5G New Radio (NR) signal structures can meet the…

信号处理 · 电气工程与系统科学 2026-05-28 Santiago Fernández , Javier Giménez , Mari Carmen Aguayo-Torres , José A. Cortés

The recent trend for extremely massive antenna arrays and high frequencies facilitates localization and sensing, offering increased angular and range resolution. In this letter, we focus on the emerging technology of Dynamic Metasurface…

信号处理 · 电气工程与系统科学 2025-02-25 Ioannis Gavras , George C. Alexandropoulos

Distributed massive multiple-input multiple-output networks utilize a large number of distributed access points (APs) to serve multiple user equipments (UEs), offering significant potential for both communication and localization. However,…

信号处理 · 电气工程与系统科学 2025-01-22 Yibo Wu , Musa Furkan Keskin , Ulf Gustavsson , Gonzalo Seco-Granados , Erik G. Larsson , Henk Wymeersch

In this paper, we propose a novel waveform design for multi-input multi-output (MIMO) dual-functional radar-communication systems by taking the range sidelobe control into consideration. In particular, we focus on optimizing the weighted…

信号处理 · 电气工程与系统科学 2019-08-14 Fan Liu , Christos Masouros , Tharmalingam Ratnarajah , Athina Petropulu

Slant-polarized Multi Input Multi Output (MIMO) antennas are able to improve the performance of mobile communication systems in terms of channel capacity. Especially, the implementation of MIMO configurations for automotive applications…

系统与控制 · 电气工程与系统科学 2024-08-20 Rasool Keshavarz , Dan Winson , Justin Lipman , Mehran Abolhasan , Negin Shariati

Channel and frequency offset estimation is a classic topic with a large body of prior work using mainly maximum likelihood (ML) approach together with Cram\'er-Rao Lower bounds (CRLB) analysis. We provide the maximum a posteriori (MAP)…

信号处理 · 电气工程与系统科学 2019-05-13 Mingda Zhou , Zhe Feng , Xinming Huang , Youjian , Liu

This paper explores an overlapped-multiple-input multiple-output (MIMO) antenna architecture and a spectrum sharing algorithm via null space projection (NSP) for radar-communications coexistence. In the overlapped-MIMO architecture, the…

信息论 · 计算机科学 2016-11-18 Chowdhury Shahriar , Ahmed Abdelhadi , T. Charles Clancy

We track moving targets with a distributed multiple-input multiple-output (MIMO) radar, for which the transmitters and receivers are appropriately paired and selected with a limited number of radar stations. We aim to maximize the sum of…

系统与控制 · 电气工程与系统科学 2023-06-19 Yuhang Hao , Zengfu Wang , Jing Fu , Xianglong Bai , Can Li , Quan Pan

This paper investigates the asymptotic behavior of the deterministic and stochastic Cram\'er-Rao Bounds (CRB) for semi-blind channel estimation in massive multiple-input multiple-output (MIMO) systems. We derive and analyze mathematically…

信号处理 · 电气工程与系统科学 2025-07-15 Xue Zhang , Abla Kammoun , Mohamed-Slim Alouini

In the practical radar with multiple antennas, the antenna imperfections degrade the system performance. In this paper, the problem of estimating the direction of arrival (DOA) in multiple-input and multiple-output (MIMO) radar system with…

信号处理 · 电气工程与系统科学 2022-03-22 Peng Chen , Zhenxin Cao , Zhimin Chen , Xianbin Wang

This paper investigates intelligent reflecting surface (IRS) enabled non-line-of-sight (NLoS) wireless sensing, in which an IRS is deployed to assist an access point (AP) to sense a target in its NLoS region. It is assumed that the AP is…

信号处理 · 电气工程与系统科学 2022-10-14 Xianxin Song , Jie Xu , Fan Liu , Tony Xiao Han , Yonina C. Eldar

In this paper, we study a multi-input multi-output (MIMO) beamforming design in an integrated sensing and communication (ISAC) system, in which an ISAC base station (BS) is used to communicate with multiple downlink users and simultaneously…

信息论 · 计算机科学 2024-07-08 Chao Hu , Yuan Fang , Ling Qiu

Multiple-input multiple-output (MIMO) has become a key technology for contemporary wireless communication systems. For typical MIMO systems, antenna arrays are separated by half of the signal wavelength, which are termed collocated arrays.…

信息论 · 计算机科学 2023-07-18 Huizhi Wang , Yong Zeng

Due to the large power consumption in RF-circuitry of massive MIMO systems, practically relevant performance measures such as energy efficiency or bandwidth efficiency are neither necessarily monotonous functions of the total transmit power…

信息论 · 计算机科学 2018-02-20 Ali Bereyhi , Saba Asaad , Ralf R. Müller