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相关论文: Data-aided Active User Detection with a User Activ…

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Human activity recognition (HAR) through wearable devices has received much interest due to its numerous applications in fitness tracking, wellness screening, and supported living. As a result, we have seen a great deal of work in this…

机器学习 · 计算机科学 2022-06-13 Nafees Ahmad , Savio Ho-Chit Chow , Ho-fung Leung

This paper considers a challenging scenario of machine type communications, where we assume internet of things (IoT) devices send short packets sporadically to an access point (AP) and the devices are not synchronized in the packet level.…

信息论 · 计算机科学 2024-06-12 Yuanyuan Zhang , Zhengdao Yuan , Qinghua Guo , Zhongyong Wang , Jiangtao Xi , Yanguang Yu , Yonghui Li

Grant-free non-orthogonal multiple access (NOMA) scheme is considered as a promising candidate for the enabling of massive connectivity and reduced signalling overhead for Internet of Things (IoT) applications in massive machine-type…

信息论 · 计算机科学 2022-05-25 Pengyu Gao , Zilong Liu , Pei Xiao , Chuan Heng Foh , Jing Zhang

Recent research demonstrates that GNNs are vulnerable to the model stealing attack, a nefarious endeavor geared towards duplicating the target model via query permissions. However, they mainly focus on node classification tasks, neglecting…

机器学习 · 计算机科学 2024-08-21 Zhihao Zhu , Chenwang Wu , Rui Fan , Yi Yang , Zhen Wang , Defu Lian , Enhong Chen

Unmanned aerial vehicle (UAV)-assisted mobile edge computing (MEC) and data collection (DC) have been popular research issues. Different from existing works that consider MEC and DC scenarios separately, this paper investigates a…

神经与进化计算 · 计算机科学 2025-02-12 Boxiong Wang , Hui Kang , Jiahui Li , Geng Sun , Zemin Sun , Jiacheng Wang , Dusit Niyato

Wireless networks support multi-user (MU) communication with multiple-input multiple-output (MIMO) and orthogonal frequency-division multiple access (OFDMA) technologies. In the joint MU-MIMO-OFDMA-enabled transmission mode, network…

信号处理 · 电气工程与系统科学 2026-05-18 Adnan Quadri , Hongxiang Li

This paper considers the downlink of a cache-enabled fog radio access network (F-RAN) with limited fronthaul capacity, where user association (UA), data delivery rate (DDR) and signal precoding are jointly optimized. We formulate a…

信息论 · 计算机科学 2017-07-03 Tung T. Vu , Duy T. Ngo , Lawrence Ong , Salman Durrani , Richard H. Middleton

Despite plenty of efforts focusing on improving the domain adaptation ability (DA) under unsupervised or few-shot semi-supervised settings, recently the solution of active learning started to attract more attention due to its suitability in…

机器学习 · 计算机科学 2022-04-05 Ming Xie , Yuxi Li , Yabiao Wang , Zekun Luo , Zhenye Gan , Zhongyi Sun , Mingmin Chi , Chengjie Wang , Pei Wang

Group activity detection (GAD) is the task of identifying members of each group and classifying the activity of the group at the same time in a video. While GAD has been studied recently, there is still much room for improvement in both…

计算机视觉与模式识别 · 计算机科学 2024-07-26 Dongkeun Kim , Youngkil Song , Minsu Cho , Suha Kwak

Online action detection (OAD) is a task that receives video segments within a streaming video as inputs and identifies ongoing actions within them. It is important to retain past information associated with a current action. However, long…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Sunah Min , Jinyoung Moon

Energy preservation is one of the most important challenges in wireless sensor networks. In most applications, sensor networks consist of hundreds or thousands nodes that are dispersed in a wide field. Hierarchical architectures and data…

网络与互联网体系结构 · 计算机科学 2014-07-22 M. Mehdi Afsar

With the rapid proliferation of smart devices in wireless networks, more powerful technologies are expected to fulfill the network requirements of high throughput, massive connectivity, and diversify quality of service. To this end, rate…

信息论 · 计算机科学 2023-04-12 Huabing Lu , Xianzhong Xie , Zhaoyuan Shi , Hongjian Lei , Nan Zhao , Jun Cai

Computer use agents (CUAs) have shown strong potential for automating complex digital workflows, yet their training remains constrained by costly live environment interaction and limited high-quality supervision. Existing filtered behavior…

人工智能 · 计算机科学 2026-05-29 Yifei He , Rui Yang , Hao Bai , Tong Zhang , Han Zhao

Detecting action units (AUs) on human faces is challenging because various AUs make subtle facial appearance change over various regions at different scales. Current works have attempted to recognize AUs by emphasizing important regions.…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Chen Ma , Li Chen , Junhai Yong

Annotating data for supervised learning can be costly. When the annotation budget is limited, active learning can be used to select and annotate those observations that are likely to give the most gain in model performance. We propose an…

机器学习 · 统计学 2024-08-19 Amanda Olmin , Jakob Lindqvist , Lennart Svensson , Fredrik Lindsten

This paper studies massive access in cell-free massive multi-input multi-output (MIMO) based Internet of Things and solves the challenging active user detection (AUD) and channel estimation (CE) problems. For the uplink transmission, we…

信息论 · 计算机科学 2020-07-23 Malong Ke , Zhen Gao , Yongpeng Wu , Xiqi Gao , Kat-Kit Wong

Narrowing the performance gap between optimal and feasible detection in inter-symbol interference (ISI) channels, this paper proposes to use graph neural networks (GNNs) for detection that can also be used to perform joint detection and…

信息论 · 计算机科学 2025-07-16 Jannis Clausius , Marvin Rübenacke , Daniel Tandler , Stephan ten Brink

In this paper, a new detection algorithm is proposed for turbo coded Code Division Multiple Access (CDMA) signals in detect and forward cooperative channels. Use of user cooperation makes much improvement in the performance of CDMA systems.…

信号处理 · 电气工程与系统科学 2018-03-13 Ebrahim Karami

In this paper, a rate-splitting multiple access (RSMA) based joint optimization framework for the space-air-ground integrated network (SAGIN) is proposed, where the satellite and base stations employ uniform planar array (UPA) antennas for…

信号处理 · 电气工程与系统科学 2026-03-31 Jian He , Cong Zhou , Shuo Shi

Future wireless networks need to support massive machine type communication (mMTC) where a massive number of devices accesses the network and massive MIMO is a promising enabling technology. Massive access schemes have been studied for…

信息论 · 计算机科学 2021-12-01 Unnikrishnan Kunnath Ganesan , Emil Björnson , Erik G. Larsson
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