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Indoor localization in multi-floor buildings is an important research problem. Finding the correct floor, in a fast and efficient manner, in a shopping mall or an unknown university building can save the users' search time and can enable a…

Information Theory · Computer Science 2016-03-03 Alireza Razavi , Mikko Valkama , Elena-Simona Lohan

In this work, we propose Many-MobileNet, an efficient model fusion strategy for retinal disease classification using lightweight CNN architecture. Our method addresses key challenges such as overfitting and limited dataset variability by…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Hao Wang , Wenhui Zhu , Xuanzhao Dong , Yanxi Chen , Xin Li , Peijie Qiu , Xiwen Chen , Vamsi Krishna Vasa , Yujian Xiong , Oana M. Dumitrascu , Abolfazl Razi , Yalin Wang

The increasing deployment of large antenna arrays at base stations has significantly improved the spatial resolution and localization accuracy of radio-localization methods. However, traditional signal processing techniques struggle in…

Signal Processing · Electrical Eng. & Systems 2026-03-17 Baptiste Chatelier , Vincent Corlay , Musa Furkan Keskin , Matthieu Crussière , Henk Wymeersch , Luc Le Magoarou

This paper addresses a data detection problem for multiple-input multiple-output (MIMO) communication systems with hardware impairments. To facilitate maximum likelihood (ML) data detection without knowledge of nonlinear and unknown…

Signal Processing · Electrical Eng. & Systems 2024-12-10 Yujin Kang , Seunghyun Jeon , Junyong Shin , Yo-Seb Jeon , H. Vincent Poor

This paper proposes a soft range limited K nearest neighbours (SRL-KNN) localization fingerprinting algorithm. The conventional KNN determines the neighbours of a user by calculating and ranking the fingerprint distance measured at the…

Signal Processing · Electrical Eng. & Systems 2022-11-09 Minh Tu Hoang , Yizhou Zhu , Brosnan Yuen , Tyler Reese , Xiaodai Dong , Tao Lu , Robert Westendorp , Michael Xie

Deep learning has recently been applied to automatically classify the modulation categories of received radio signals without manual experience. However, training deep learning models requires massive volume of data. An insufficient…

Signal Processing · Electrical Eng. & Systems 2019-12-11 Liang Huang , Weijian Pan , You Zhang , LiPing Qian , Nan Gao , Yuan Wu

Movable antenna (MA) technology offers a flexible approach to enhancing wireless channel conditions by adjusting antenna positions within a designated region. While most existing works focus on narrowband MA systems, this paper investigates…

Signal Processing · Electrical Eng. & Systems 2025-10-03 Ruixi Feng , Weidong Mei , Lele Lu , Xin Wei , Zhi Chen , Zhen Gao , Boyu Ning

This work establishes a framework of near-field communication under different array geometries of extremely large-scale multiple-input multiple-output (XL-MIMO). We first formulate the near-field spatial non-stationary channel model which…

Signal Processing · Electrical Eng. & Systems 2026-05-19 Kangda Zhi , Yi Song , Tianyu Yang , Tuo Wu , Tengjiao Wang , Songyan Xue , Fangzhou Wu , Giuseppe Caire

Maritime object detection faces essential challenges due to the small target size and limitations of labeled real RGB data. This paper will present a real-time object detection system based on RT-DETR, enhanced by employing augmented…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Nader Nemati

The proliferation of smartphones and other mobile devices provides a unique opportunity to make Advanced Driver Assistance Systems (ADAS) accessible to everyone in the form of an application empowered by low-cost Machine/Deep Learning…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Muhammad Zaeem Shahzad , Muhammad Abdullah Hanif , Muhammad Shafique

We propose a data-driven approach for large-scale cellular network optimization, using a production cellular network in London as a case study and employing Sionna ray tracing for site-specific channel propagation modeling. We optimize base…

Information Theory · Computer Science 2025-04-10 Mohamed Benzaghta , Giovanni Geraci , David López-Pérez , Alvaro Valcarce

While convolutional neural networks (CNNs) have been successfully applied to many challenging classification applications, they typically require large datasets for training. When the availability of labeled data is limited, data…

Computer Vision and Pattern Recognition · Computer Science 2017-11-10 Terry Taewoong Um , Franz Michael Josef Pfister , Daniel Pichler , Satoshi Endo , Muriel Lang , Sandra Hirche , Urban Fietzek , Dana Kulić

Object Detection has been a significant topic in computer vision. As the continuous development of Deep Learning, many advanced academic and industrial outcomes are established on localising and classifying the target objects, such as…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Yingwei Zhou

Massive MIMO is bringing significant performance improvements in the context of outdoor macrocells, such as favourable propagation conditions, spatially confined communication, high antenna gains to overcome pathloss, and good angular…

Signal Processing · Electrical Eng. & Systems 2020-03-26 Andrea P. Guevara , Sibren De Bast , Sofie Pollin

Beyond the immediate biophysical benefits, urban trees play a foundational role in environmental sustainability and disaster mitigation. Precise mapping of urban trees is essential for environmental monitoring, post-disaster assessment, and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 In Seon Kim , Ali Moghimi

This paper explores potential improvements to the Spatial-Temporal Matching algorithm for aligning the GPS trajectories to road networks. While this algorithm is effective, it presents some limitations in computational efficiency and the…

Machine Learning · Computer Science 2026-03-12 Ali Yousefian , Arianna Burzacchi , Simone Vantini

To reduce channel acquisition overhead, spatial, time, and frequency-domain channel extrapolation techniques have been widely studied. In this paper, we propose a novel deep learning-based Position-domain Channel Extrapolation framework…

Information Theory · Computer Science 2025-07-25 Jiajia Guo , Chao-Kai Wen , Xiao Li , Shi Jin

Deep learning-based fingerprinting is one of the current promising technologies for outdoor localization in cellular networks. However, deploying such localization systems for heterogeneous phones affects their accuracy as the cellular…

Computers and Society · Computer Science 2024-07-25 Ahmed Shokry , Moustafa Youssef

Dynamic data selection aims to accelerate training with lossless performance. However, reducing training data inherently limits data diversity, potentially hindering generalization. While data augmentation is widely used to enhance…

Machine Learning · Computer Science 2025-05-13 Suorong Yang , Peng Ye , Furao Shen , Dongzhan Zhou

Indoor localization is a supporting technology for a broadening range of pervasive wireless applications. One promis- ing approach is to locate users with radio frequency fingerprints. However, its wide adoption in real-world systems is…

Information Theory · Computer Science 2017-08-04 Xiao-Yang Liu , Shuchin Aeron , Vaneet Aggarwal , Xiaodong Wang , Min-You Wu
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