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相关论文: Deep Learning-based Data-aided Activity Detection …

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This paper proposes a computationally efficient algorithm to solve the joint data and activity detection problem for massive random access with massive multiple-input multiple-output (MIMO). The BS acquires the active devices and their data…

信号处理 · 电气工程与系统科学 2022-11-15 Ziyue Wang , Zhilin Chen , Ya-Feng Liu , Foad Sohrabi , Wei Yu

This paper investigates the issue of cooperative activity detection for grant-free random access in the sixth-generation (6G) cell-free wireless networks with sourced and unsourced paradigms. First, we propose a cooperative framework for…

信息论 · 计算机科学 2020-11-23 Xiaodan Shao , Xiaoming Chen , Derrick Wing Kwan Ng , Caijun Zhong , Zhaoyang Zhang

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

Deep learning models are widely employed in safety-critical applications yet remain susceptible to adversarial attacks -- imperceptible perturbations that can significantly degrade model performance. Conventional defense mechanisms…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Eylon Mizrahi , Raz Lapid , Moshe Sipper

Sparse code multiple access (SCMA) is a new multiple access technique which supports massive connectivity. Compared with the current Long Term Evolution (LTE) system, it enables the overloading of active users on limited orthogonal…

信息论 · 计算机科学 2016-11-29 Chenchen Zhang , Yuan Luo , Yan Chen

Learning portable neural networks is very essential for computer vision for the purpose that pre-trained heavy deep models can be well applied on edge devices such as mobile phones and micro sensors. Most existing deep neural network…

机器学习 · 计算机科学 2020-01-01 Hanting Chen , Yunhe Wang , Chang Xu , Zhaohui Yang , Chuanjian Liu , Boxin Shi , Chunjing Xu , Chao Xu , Qi Tian

The primary objective of human activity recognition (HAR) is to infer ongoing human actions from sensor data, a task that finds broad applications in health monitoring, safety protection, and sports analysis. Despite proliferating research,…

计算机视觉与模式识别 · 计算机科学 2025-07-14 Hang Xiao , Ying Yu , Jiarui Li , Zhifan Yang , Haotian Tang , Hanyu Liu , Chao Li

Preamble collision is a bottleneck that impairs the performance of random access (RA) user equipment (UE) in grant-free RA (GFRA). In this paper, by leveraging distributed massive multiple input multiple output (mMIMO) together with machine…

信号处理 · 电气工程与系统科学 2020-12-29 Jie Ding , Daiming Qu , Pei Liu , Jinho Choi

Contemporary Deep Neural Network (DNN) contains millions of synaptic connections with tens to hundreds of layers. The large computation and memory requirements pose a challenge to the hardware design. In this work, we leverage the intrinsic…

机器学习 · 计算机科学 2017-11-07 Jingyang Zhu , Jingbo Jiang , Xizi Chen , Chi-Ying Tsui

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by complex physiological processes. Previous research has predominantly focused on static cerebral interactions, often neglecting the brain's dynamic nature and…

机器学习 · 计算机科学 2024-09-11 Peng Wang , Xin Wen , Ruochen Cao , Chengxin Gao , Yanrong Hao , Rui Cao

Distributed radar sensors enable robust human activity recognition. However, scaling the number of coordinated nodes introduces challenges in feature extraction from large datasets, and transparent data fusion. We propose an end-to-end…

信号处理 · 电气工程与系统科学 2026-01-07 Mina Shahbazifar , Zolfa Zeinalpour-Yazdi , Matthias Hollick , Arash Asadi , Vahid Jamali

The requirements to support massive connectivity and low latency in massive Machine Type Communications (mMTC) bring a huge challenge in the design of its random access (RA) procedure, which usually calls for efficient joint active user…

信息论 · 计算机科学 2019-06-26 Jue Wang , Zhaoyang Zhang , Lajos Hanzo

Machine learning systems are being used to automate many types of laborious labeling tasks. Facial actioncoding is an example of such a labeling task that requires copious amounts of time and a beyond average level of human domain…

计算机视觉与模式识别 · 计算机科学 2019-11-15 Alberto Fung , Daniel McDuff

The p-persistent CSMA protocol is central to random-access MAC analysis, but predicting saturation throughput in heterogeneous multi-hop wireless networks remains a hard problem. Simplified models that assume a single, shared interference…

机器学习 · 计算机科学 2025-10-29 Faezeh Dehghan Tarzjani , Bhaskar Krishnamachari

In this work, we investigate the feasibility and effectiveness of employing deep learning algorithms for automatic recognition of the modulation type of received wireless communication signals from subsampled data. Recent work considered a…

信号处理 · 电气工程与系统科学 2019-01-18 Sharan Ramjee , Shengtai Ju , Diyu Yang , Xiaoyu Liu , Aly El Gamal , Yonina C. Eldar

We propose a method for channel training and precoding in FDD massive MIMO based on deep neural networks (DNNs), exploiting Downlink (DL) channel covariance knowledge. The DNN is optimized to maximize the DL multi-user sum-rate, by…

信息论 · 计算机科学 2023-03-21 Yi Song , Tianyu Yang , Mahdi Barzegar Khalilsarai , Giuseppe Caire

This paper designs a cooperative activity detection framework for massive grant-free random access in the sixth-generation (6G) cell-free wireless networks based on the covariance of the received signals at the access points (APs). In…

信息论 · 计算机科学 2020-09-10 Xiaodan Shao , Xiaoming Chen , Derrick Wing Kwan Ng , Caijun Zhong , Zhaoyang Zhang

Massive MTC support is an important future market segment, but not yet efficiently supported in cellular systems. In this paper we follow-up on recent concepts combining advanced MAC protocols with Compressed Sensing (CS) based multiuser…

信息论 · 计算机科学 2017-07-04 Gerhard Wunder , Cedomir Stefanovic , Petar Popovski , Lars Thiele

Deep Convolutional Neural Networks (DCNNs) are currently popular in human activity recognition applications. However, in the face of modern artificial intelligence sensor-based games, many research achievements cannot be practically applied…

机器学习 · 计算机科学 2018-12-05 Zhan Yang , Osolo Ian Raymond , ChengYuan Zhang , Ying Wan , Jun Long

Massive machine-type communication (MTC) with sporadically transmitted small packets and low data rate requires new designs on the PHY and MAC layer with light transmission overhead. Compressive sensing based multiuser detection (CS-MUD) is…

信号处理 · 电气工程与系统科学 2018-07-04 Yanna Bai , Bo Ai , Wei Chen