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相关论文: Interfering Channel Estimation in Radar-Cellular C…

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This paper studies a two-layer decoding method that mitigates inter-cell interference in multi-cell Massive MIMO systems. In layer one, each base station (BS) estimates the channels to intra-cell users and uses the estimates for local…

信息论 · 计算机科学 2019-03-19 Trinh Van Chien , Christopher Mollén , Emil Björnson

Due to their ability to create favorable line-of-sight (LoS) propagation environments, intelligent reflecting surfaces (IRSs) are regarded as promising enablers for future millimeter-wave (mm-wave) wireless communication. In this paper, we…

信息论 · 计算机科学 2021-07-27 Tian Lin , Xianghao Yu , Yu Zhu , Robert Schober

In intelligent reflecting surface (IRS) assisted communication systems, the acquisition of channel state information (CSI) is a crucial impediment for achieving the beamforming gain of IRS because of the considerable overhead required for…

信息论 · 计算机科学 2020-06-25 Zhaorui Wang , Liang Liu , Shuguang Cui

We present distributed methods for jointly optimizing Intelligent Reflecting Surface (IRS) phase-shifts and beamformers in a cellular network. The proposed schemes require knowledge of only the intra-cell training sequences and…

信息论 · 计算机科学 2021-10-29 Reinhard Wiesmayr , Michael Honig , Michael Joham , Wolfgang Utschick

Detection of radar signals without assistance from the radar transmitter is a crucial requirement for emerging and future shared-spectrum wireless networks like Citizens Broadband Radio Service (CBRS). In this paper, we propose a supervised…

信号处理 · 电气工程与系统科学 2023-09-22 Shamik Sarkar , Dongning Guo , Danijela Cabric

We consider a multiple-input multiple-output (MIMO) relaying boardcast channel in downlink cellular networks, where the base station and the relay stations are both equipped with multiple antennas, and each user terminal has only a single…

信号处理 · 电气工程与系统科学 2020-03-24 Zijian Wang , Wen Chen , Jun Li

Intelligent reflecting surfaces (IRSs)-assisted wireless communication promises improved system performance, while posing new challenges in channel estimation (CE) due to the passive nature of the reflecting elements. Although a few CE…

信号处理 · 电气工程与系统科学 2020-09-25 Hibatallah Alwazani , Qurrat-Ul-Ain Nadeem , Anas Chaaban

Intelligent reflecting surfaces (IRSs) are regarded as promising enablers for future millimeter wave (mmWave) wireless communication, due to their ability to create favorable line-of-sight (LoS) propagation environments. In this paper, we…

信息论 · 计算机科学 2020-05-12 Tian Lin , Xianghao Yu , Yu Zhu , Robert Schober

With new applications for radar networks such as automotive control or indoor localization, the need for spectrum sharing and general interoperability is expected to rise. This paper describes the application of multi-player bandit…

信息论 · 计算机科学 2021-02-02 William W. Howard , Charles E. Thornton , Anthony F. Martone , R. Michael Buehrer

In this paper, we consider a distributed multiple-input multiple-output (MIMO) radar which radiates waveforms with non-ideal cross- and auto-correlation functions and derive a novel subspace-based procedure to detect and localize multiple…

信号处理 · 电气工程与系统科学 2022-12-09 Yangming Lai , Luca Venturino , Emanuele Grossi , Wei Yi

A MIMO radar system is proposed for obtaining angle and Doppler information on potential targets. Transmitters and receivers are nodes of a small scale wireless network and are assumed to be randomly scattered on a disk. The transmit nodes…

信息论 · 计算机科学 2015-05-14 Yao Yu , Athina P. Petropulu , H. Vincent Poor

A reconfigurable intelligent surface (RIS) can shape the radio propagation by passively changing the directions of impinging electromagnetic waves. The optimal control of the RIS requires perfect channel state information (CSI) of all the…

信号处理 · 电气工程与系统科学 2020-02-18 Jiguang He , Markus Leinonen , Henk Wymeersch , Markku Juntti

The mutual interference between similar radar systems can result in reduced radar sensitivity and increased false alarm rates. To address the synchronous and asynchronous interference mitigation problems in similar radar systems, we first…

信号处理 · 电气工程与系统科学 2022-08-10 Arindam Bose , Bo Tang , Wenjie Huang , Mojtaba Soltanalian , Jian Li

This work focuses on wideband intelligent reflecting surface (IRS)-aided multiuser MIMO systems. One of the major challenges of this scenario is the joint design of the frequency-dependent base station (BS) precoder and user filters, and…

In this work, we analyze a multi-functional reconfigurable intelligent surface (MF-RIS)-enabled radar and communication coexistence (RCC) system, detailing the key aspects of its phase synthesis codebook generation and the implemented…

Optimally extracting the advantages available from reconfigurable intelligent surfaces (RISs) in wireless communications systems requires estimation of the channels to and from the RIS. The process of determining these channels is…

信息论 · 计算机科学 2021-10-04 A. Lee Swindlehurst , Gui Zhou , Rang Liu , Cunhua Pan , Ming Li

In this paper, we propose a series of novel coordination schemes for multi-cell downlink communication. Starting from full base station (BS) coordination, we first propose a fully-coordinated scheme to exploit beneficial effects of both…

信号处理 · 电气工程与系统科学 2019-01-15 Zhongxiang Wei , Christos Masouros , Kai-Kit Wong , Xin Kang

In this work, the uplink channel estimation problem is considered for a millimeter wave (mmWave) multi-input multi-output (MIMO) system. It is well known that pilot overhead and computation complexity in estimating the channel increases…

Algorithms for mutual interference mitigation and object parameter estimation are a key enabler for automotive applications of frequency-modulated continuous wave (FMCW) radar. In this paper, we introduce a signal separation method to…

信号处理 · 电气工程与系统科学 2024-10-03 Mate Toth , Erik Leitinger , Klaus Witrisal

We investigate cooperative radar and communications signaling. Each system typically considers the other system a source of interference. Consequently, the traditional solution is to isolate the two systems spectrally or spatially. By…

信息论 · 计算机科学 2014-09-25 Alex R. Chiriyath , Bryan Paul , Daniel W. Bliss