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Wireless sensor networks (WSN), i.e. networks of autonomous, wireless sensing nodes spatially deployed over a geographical area, are often faced with acquisition of spatially sparse fields. In this paper, we present a novel bandwidth/energy…

信息论 · 计算机科学 2014-05-27 Stefania Colonnese , Roberto Cusani , Stefano Rinauro , Giorgia Ruggiero , Gaetano Scarano

Omni-directional pathloss, which refers to the pathloss when omni-directional antennas are used at the link ends, are essential for system design and evaluation. In the millimeter-wave (mm-Wave) and beyond bands, high gain directional…

信号处理 · 电气工程与系统科学 2022-08-09 Mengting Li , Fengchun Zhang , Xiang Zhang , Yejian Lyu , Wei Fan

Optical fibers have long been employed as sensors in a wide range of commercial systems. Distributed Acoustic Sensing (DAS) extends this concept by enabling the detection and localization of acoustic sources along the fiber, using…

信号处理 · 电气工程与系统科学 2025-09-25 Knut H. Grythe , Jan Erik Håkegård

Locating sources of diffusion and spreading from minimum data is a significant problem in network science with great applied values to the society. However, a general theoretical framework dealing with optimal source localization is…

社会与信息网络 · 计算机科学 2017-03-16 Zhao-Long Hu , Xiao Han , Ying-Cheng Lai , Wen-Xu Wang

This paper introduces an efficient reactive routing protocol considering the mobility and the reliability of a node in Cognitive Radio Sensor Networks (CRSNs). The proposed protocol accommodates the dynamic behavior of the spectrum…

网络与互联网体系结构 · 计算机科学 2020-09-01 Sharmin Akter , Mohammad Shahriar Rahman , Nafees Mansoor

In this paper, to fully exploit the performance gains from moveable antennas (MAs) and reconfigurable intelligent surface (RIS), a RIS-aided directional modulation \textcolor{blue}{(DM)} network with movable antenna at base station (BS) is…

信号处理 · 电气工程与系统科学 2025-04-11 Maolin Li , Jingdie Xin , Feng Shu , Xuehui Wang , Yongpeng Wu , Cunhua Pan

Compressive Sensing (CS) has been applied successfully in a wide variety of applications in recent years, including photography, shortwave infrared cameras, optical system research, facial recognition, MRI, etc. In wireless sensor networks…

网络与互联网体系结构 · 计算机科学 2013-11-20 Xi Xu , Rashid Ansari , Ashfaq Khokhar

This paper studies a multi-antenna networked integrated sensing and communications (ISAC) system, in which a set of multi-antenna base stations (BSs) employ the coordinated transmit beamforming to serve multiple single-antenna communication…

信息论 · 计算机科学 2023-07-12 Gaoyuan Cheng , Yuan Fang , Jie Xu , Derrick Wing Kwan Ng

Due to the directive property of each antenna element, the received signal power can be severely attenuated when the emitter deviates from the array boresight, which will lead to a severe degradation in sensing performance along the…

信号处理 · 电气工程与系统科学 2026-05-20 Jinbing Jiang , Feng Shu , Minghao Chen , Jiatong Bai , Maolin Li , Yan Wang , Jiangzhou Wang , Wan Choi

In this paper, a energy-efficient data collection method is proposed in which an integration between Discrete Cosine Transform (DCT) matrix and clustering in wireless sensor networks (WSNs) is exploited.Based on the fact that sensory data…

网络与互联网体系结构 · 计算机科学 2017-01-11 Minh Nguyen , Keith Teague

This paper presents a novel antenna configuration to measure directions of multiple signal sources at the receiver in a THz mobile network via a single channel measurement. Directional communication is an intrinsic attribute of THz wireless…

信号处理 · 电气工程与系统科学 2021-08-12 Farzam Hejazi , Katarina Vuckovic , Nazanin Rahnavard

Spectrum sensing is a fundamental component of cognitive radio. How to promptly sense the presence of primary users is a key issue to a cognitive radio network. The time requirement is critical in that violating it will cause harmful…

网络与互联网体系结构 · 计算机科学 2014-04-28 Feng Lin , Robert C. Qiu , James P. Browning

In colocated multiple-input multiple-output (MIMO) radar using compressive sensing (CS), a receive node compresses its received signal via a linear transformation, referred to as measurement matrix. The samples are subsequently forwarded to…

信息论 · 计算机科学 2015-05-27 Y. Yu , A. P. Petropulu , H. V. Poor

Various compositions of sparsely polarized antenna arrays are proposed in this paper to estimate the direction-of-arrivals (DOAs) and polarizations of multiple coherent sources. These polarized antenna arrays are composed of one of the…

仪器与探测器 · 物理学 2014-05-21 Xin Yuan

Recently, Wi-Fi signals have emerged as a powerful tool for contactless sensing. During the sensing process, obtaining target direction information can provide valuable contextual insights for various applications. Existing direction…

信号处理 · 电气工程与系统科学 2025-11-27 Zhaoxin Chang , Shuguang Xiao , Fusang Zhang , Xujun Ma , Badii Jouaber , Qingfeng Zhang , Daqing Zhang

This paper studies a multi-antenna network integrated sensing and communication (ISAC) system, in which a set of multi-antenna base stations (BSs) employ the coordinated transmit beamforming to serve their respectively associated…

信息论 · 计算机科学 2022-11-03 Gaoyuan Cheng , Jie Xu

Direction-of-arrival (DOA) estimation refers to the process of retrieving the direction information of several electromagnetic waves/sources from the outputs of a number of receiving antennas that form a sensor array. DOA estimation is a…

信息论 · 计算机科学 2017-01-10 Zai Yang , Jian Li , Petre Stoica , Lihua Xie

Radio tomographic imaging (RTI) enables device free localisation of people and objects in many challenging environments and situations. Its basic principle is to detect the changes in the statistics of some radio quality measurements in…

其他计算机科学 · 计算机科学 2014-02-13 Bo Wei , Ambuj Varshney , Wen Hu , Neal Patwari , Thiemo Voigt , Chun Tung Chou

To support millimeter wave (mmWave) frequency bands in cellular communications, both the base station and the mobile platform utilize large antenna arrays to steer narrow beams towards each other to compensate the path loss and improve…

信号处理 · 电气工程与系统科学 2020-05-05 Junmo Sung , Brian L. Evans

We propose a unified dynamic tracking algorithmic framework (PLAY-CS) to reconstruct signal sequences with their intrinsic structured dynamic sparsity. By capitalizing on specific statistical assumptions concerning the dynamic filter of the…

信息论 · 计算机科学 2025-02-19 Xiaozhi Liu , Yong Xia