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Ambient backscatter has been introduced with a wide range of applications for low power wireless communications. In this article, we propose an optimal and low-complexity dynamic spectrum access framework for RF-powered ambient backscatter…

网络与互联网体系结构 · 计算机科学 2018-09-11 Nguyen Van Huynh , Dinh Thai Hoang , Diep N. Nguyen , Eryk Dutkiewicz , Dusit Niyato , Ping Wang

Recent advances in both machine learning and Internet-of-Things have attracted attention to automatic Activity Recognition, where users wear a device with sensors and their outputs are mapped to a predefined set of activities. However, few…

机器学习 · 计算机科学 2019-08-20 Taku Yamagata , Raúl Santos-Rodríguez , Ryan McConville , Atis Elsts

This paper studies a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system, in which a multi-antenna base station (BS) sends unified wireless signals to estimate one sensing target and communicate with a…

信息论 · 计算机科学 2022-09-27 Haocheng Hua , Tony Xiao Han , Jie Xu

Sparse Mobile CrowdSensing (MCS) is a novel MCS paradigm where data inference is incorporated into the MCS process for reducing sensing costs while its quality is guaranteed. Since the sensed data from different cells (sub-areas) of the…

人工智能 · 计算机科学 2018-05-25 Leye Wang , Wenbin Liu , Daqing Zhang , Yasha Wang , En Wang , Yongjian Yang

This paper proposes an adaptive near-field beam training method to enhance performance in multi-user and multipath environments. The approach identifies multiple strongest beams through beam sweeping and linearly combines their received…

信号处理 · 电气工程与系统科学 2025-05-14 Zijun Wang , Rama Kiran , Jinesh Nair , Chien-Hua Chen , Tzu-Han Chou , Shawn Tsai , Rui Zhang

Stacked intelligent metasurfaces (SIM) represents an advanced signal processing paradigm that enables over-the-air processing of electromagnetic waves at the speed of light. Its multi-layer structure exhibits customizable increased…

信号处理 · 电气工程与系统科学 2024-02-15 Hao Liu , Jiancheng An , Derrick Wing Kwan Ng , George C. Alexandropoulos , Lu Gan

The received signal strength (RSS) based technique is extensively utilized for localization in the indoor environments. Since the RSS values of neighboring locations may be similar, the localization accuracy of the RSS based technique is…

信号处理 · 电气工程与系统科学 2023-03-27 Haobo Zhang , Hongliang Zhang , Boya Di , Kaigui Bian , Zhu Han , Lingyang Song

Due to the distinct objectives and multipath utilization mechanisms between the communication module and radar module, the system design of integrated sensing and communication (ISAC) necessitates two types of channel state information…

信号处理 · 电气工程与系统科学 2024-09-26 Jie Chen , Xianbin Wang

This paper studies the active intelligent reflecting surface (IRS)-enabled integrated sensing and communications (ISAC), in which an active IRS is deployed to assist the base station (BS) in serving multiple communication users (CUs) and…

信息论 · 计算机科学 2025-08-04 Yuan Fang , Xianxin Song , Huazhou Hou , Ziguo Zhong , Xianghao Yu , Jie Xu , Yongming Huang

This paper considers reconfigurable intelligent surface (RIS)-aided integrated sensing and communication (ISAC) systems under dual-polarized (DP) channels. Unlike the existing ISAC systems, which ignored polarization of electromagnetic…

信息论 · 计算机科学 2025-01-03 Dongnan Xia , Cunhua Pan , Hong Ren , Zhiyuan Yu , Yasheng Jin , Jiangzhou Wang

Reinforcement learning (RL) has proven to be well-performed and general-purpose in the inventory control (IC). However, further improvement of RL algorithms in the IC domain is impeded due to two limitations of online experience. First,…

机器学习 · 计算机科学 2025-02-18 Zifan Liu , Xinran Li , Shibo Chen , Gen Li , Jiashuo Jiang , Jun Zhang

Utilization of inter-base station cooperation for information processing has shown great potential in enhancing the overall quality of communication services (QoS) in wireless communication networks. Nevertheless, such cooperations require…

信息论 · 计算机科学 2024-01-23 Xingdi Chen , Yu Xiong , Kai Yang

We propose a novel coded integrated passive sensing and communication (CIPSAC) system with orthogonal frequency division multiplexing (OFDM), where a multi-antenna base station (BS) passively senses the parameters of the targets and decodes…

信号处理 · 电气工程与系统科学 2025-02-19 Chenghong Bian , Kaitao Meng , Huihui Wu , Yumeng Zhang , Deniz Gunduz

In this paper, we consider transmit beamforming and reflection patterns design in reconfigurable intelligent surface (RIS)-assisted integrated sensing and communication (ISAC) systems, where the dual-function base station (DFBS) lacks…

信号处理 · 电气工程与系统科学 2025-04-11 Yunxiang Shi , Lixin Li , Wensheng Lin , Wei Liang , Zhu Han

Robust adaptive beamforming (RAB) based on interference-plus-noise covariance (IPNC) matrix reconstruction can experience serious performance degradation in the presence of look direction and array geometry mismatches, particularly when the…

信息论 · 计算机科学 2025-03-11 S. Mohammedzadeh , R. de Lamare

Spectrum sensing is a key technology for cognitive radios. We present spectrum sensing as a classification problem and propose a sensing method based on deep learning classification. We normalize the received signal power to overcome the…

信号处理 · 电气工程与系统科学 2019-09-16 Shilian Zheng , Shichuan Chen , Peihan Qi , Huaji Zhou , Xiaoniu Yang

Wireless sensor networks consist of randomly distributed sensor nodes for monitoring targets or areas of interest. Maintaining the network for continuous surveillance is a challenge due to the limited battery capacity in each sensor.…

机器学习 · 计算机科学 2023-10-03 Ngoc Bui , Phi Le Nguyen , Viet Anh Nguyen , Phan Thuan Do

Radiologists highly desire fully automated AI for radiology report generation (R2G), yet existing approaches fall short in clinical utility. Reinforcement learning (RL) holds potential to address these shortcomings, but its adoption in this…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Zilin Lu , Ruifeng Yuan , Weiwei Cao , Wanxing Chang , Zhongyu Wei , Sinuo Wang , Yong Xia , Ling Zhang , Jianpeng Zhang

Reducing operation and maintenance costs is a key objective for advanced reactors in general and microreactors in particular. To achieve this reduction, developing robust autonomous control algorithms is essential to ensure safe and…

系统与控制 · 电气工程与系统科学 2024-06-25 Majdi I. Radaideh , Leo Tunkle , Dean Price , Kamal Abdulraheem , Linyu Lin , Moutaz Elias

Most of the research on Federated Learning (FL) has focused on analyzing global optimization, privacy, and communication, with limited attention focusing on analyzing the critical matter of performing efficient local training and inference…

机器学习 · 计算机科学 2020-09-09 Basheer Qolomany , Kashif Ahmad , Ala Al-Fuqaha , Junaid Qadir