Jie Wang

Carrier Synchronization in SC-FDMA System for Satellite Uplink

Ke Zhou, Jie Wang, Ming Chen, H.K. Song

Single carrier frequency division multiple access (SC-FDMA) is a multicarrier modulation technique known for its low peak-to-average ratio (PAPR) and high spectral efficiency. However, SC-FDMA is more sensitive to carrier frequency offset than single carrier systems. In this paper, a method is …

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A Lightweight and Efficient Detection Transformer for Highway Abandoned Objects

Biao Zhang, Chishe Wang, Jie Wang

Abandoned objects on highways seriously threaten traffic safety, and their prompt identification and removal are crucial. Existing methods struggle to balance computational cost and detection accuracy due to the significant scale differences of abandoned objects on highways. To address these problems, we …

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Two-Dimensional Information Preamble Multiplicity Detection in Cell-Free Massive MIMO Systems

Jiamin Li, Jie Wang, Pengcheng Zhu, Dongming Wang

In the grant-free random access (GFRA) scenario, orthogonal preamble collisions of massive active user equipments (UEs) may lead to communication access failure. However, cell-free massive multiple-input multiple-output (mMIMO) system has good signal spatial sparsity, which can largely mitigate the interference from colliding …

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Two Measure is Two Know: Calibration-free Full Duplex Monitoring for Software Radio Platforms

Jie Wang, Jonathan Gornet, Alex Orange, Leigh B. Stoller et autres

Software-defined radio (SDR) platforms, despite being an enabler of spectrum and infrastructure sharing, must ensure that their transmitted signals comply with spectrum rules. Violations may occur because of malware, misconfiguration, bugs in software, or RF frontend nonlinearities. We present FDMonitor, a full-duplex …

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Analysis and prospect of power transformer fault diagnosis technology

Yong Xin Gao, Jie Wang

The transformer stands as a vital component within the power system, serving a crucial role in voltage regulation and energy transmission throughout the entire process of electricity generation, transmission, distribution, and consumption. Furthermore, it holds a pivotal position in facilitating Alternate Current …

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Improvement of the Fatigue Life of an Electron-Beam Welded Ti2alnb Joint Subjected to an Electromagnetic Coupling Treatment

Qiang Li, Xiaotong Wang, Kunlan Huang, Yi Qin et autres

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Achieving Strength-Ductility Synergy in Lpbf Ti-6al-8v Alloy Through in Situ Alloying

Zhe Song, Yinghang Liu, Gaoming Zhu, Jie Wang et autres

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Augmenting Channel Estimation Via Loss Field: Site-Trained Bayesian Modeling and Comparative Analysis

Jie Wang, Meles G. Weldegebriel, Neal Patwari

Channel Estimation via Loss Field: Accurate Site-Trained Modeling for Shadowing Prediction

Jie Wang, Meles G. Weldegebriel, Neal Patwari

Future mobile ad hoc networks will share spectrum between many users. Channels will be assigned on the fly to guarantee signal and interference power requirements for requested links. Channel losses must be re-estimated between many pairs of users as they move and …

Event-triggered sequential fusion filters for multi-sensor systems with multiplicative noises

Ke Xu, Jie Wang, Ke Wu, Yuan Gao et autres

This paper combines an event-triggered mechanism with a multiplicative noise system to reduce the communication congestion and the calculation workload of the networked fusion center, and proposes an event-triggered Sequence Covariance Intersection and Sequence Inverse Covariance Intersection fusion algorithm based on the …

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Intelligent Reflective Surface-Assisted MEC Securely Calculates Offloading Policy

Lei Wang, Jie Wang, Xue Jiang, Jingwu Cui et autres

To enhance the security in the computational offloading process of Mobile Edge Computing (MEC) systems, this paper proposes a physical layer secure transmission scheme based on Intelligent Reflecting Surface (IRS) assistance. In this scheme, IRS is added to facilitate the task transfer …

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Cooperative vehicle localization method based on coprime polarized MIMO systems for internet-of-vehicles

Xinyun Yan, xia zhu, Hongjun Zhai, Chishe Wang et autres

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