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Tensor Robust Principal Component Analysis (TRPCA) holds a crucial position in machine learning and computer vision. It aims to recover underlying low-rank structures and to characterize the sparse structures of noise. Current approaches…

Numerical Analysis · Mathematics 2026-01-15 Chao Wang , Huiwen Zheng , Raymond Chan , Youwei Wen

In massive machine-type communications (mMTC), grant-free access is a key enabler for a massive number of users to be connected to a base station with low signaling overhead and low latency. In this paper, a two-stage genetic algorithm (GA)…

Information Theory · Computer Science 2021-08-03 Nam Yul Yu

The industrial Internet of things (IIoT) is revolutionizing industrial processes by facilitating massive machine-type communications among countless interconnected devices. To efficiently handle the resulting large-scale and sporadic…

Signal Processing · Electrical Eng. & Systems 2025-08-22 Enrico Testi , Giulia Torcolacci , Nicolò Decarli , Davide Dardari , Enrico Paolini

We investigate a correspondence between two formalisms for discrete probabilistic modeling: probabilistic graphical models (PGMs) and tensor networks (TNs), a powerful modeling framework for simulating complex quantum systems. The graphical…

Machine Learning · Statistics 2021-07-01 Jacob Miller , Geoffrey Roeder , Tai-Danae Bradley

We examine unsourced random access in a fully asynchronous setup, where active users transmit their data without restriction on the start time over a fading channel. In the proposed scheme, the transmitted signal consists of a pilot…

Information Theory · Computer Science 2025-12-23 Mert Ozates , Mohammad Kazemi , Gianluigi Liva , Deniz Gündüz

Distribution shift between train (source) and test (target) datasets is a common problem encountered in machine learning applications. One approach to resolve this issue is to use the Unsupervised Domain Adaptation (UDA) technique that…

We propose a novel random access (RA) protocol that accounts for the network traffic in mixed URLLC-mMTC scenarios. By considering an IoT environment under high mMTC traffic demand, we model the traffic of each service using realistic…

Signal Processing · Electrical Eng. & Systems 2024-02-14 Herman L. dos Santos , João H. I. Souza , José Carlos Marinello , Taufik Abrão

In this paper, we propose a cognitive radio-inspired rate-splitting multiple access (CR-RSMA) scheme to assist semi-grant-free (SGF) transmissions in which a grant-based user (GBU) and multiple grant-free users (GFUs) access the…

Information Theory · Computer Science 2022-08-16 Hongwu Liu , Kyeong Jin Kim , Theodoros A. Tsiftsis , Bruno Clerckx , Kyung Sup Kwak , H. Vincent Poor

Tensor decomposition is a powerful computational tool for multiway data analysis. Many popular tensor decomposition approaches---such as the Tucker decomposition and CANDECOMP/PARAFAC (CP)---amount to multi-linear factorization. They are…

Machine Learning · Computer Science 2012-01-17 Zenglin Xu , Feng Yan , Yuan , Qi

Grant-free random access (GF-RA) is a promising access technique for massive machine-type communications (mMTC) in future wireless networks, particularly in the context of 5G and beyond (6G) systems. Within the context of GF-RA, this study…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Ali Elkeshawy , Haifa Fares , Amor Nafkha

The massive machine-type communication has been one of the most representative services for future wireless networks. It aims to support massive connectivity of user equipments (UEs) which sporadically transmit packets with small size. In…

Information Theory · Computer Science 2020-08-21 Junyuan Gao , Yongpeng Wu , Wenjun Zhang

We present a random access method inspired on Bloom filters that is suited for Machine-Type Communications (MTC). Each accessing device sends a \emph{signature} during the contention process. A signature is constructed using the Bloom…

Information Theory · Computer Science 2016-08-31 Nuno K. Pratas , Cedomir Stefanovic , German Corrales Madueno , Petar Popovski

Grant-free random access and uplink non-orthogonal multiple access (NOMA) have been introduced to reduce transmission latency and signaling overhead in massive machine-type communication (mMTC). In this paper, we propose two novel…

Information Theory · Computer Science 2023-03-01 Thushan Sivalingam , Samad Ali , Nurul Huda Mahmood , Nandana Rajatheva , Matti Latva-Aho

Grant-free massive random access (RA) is a promising protocol to support the massive machine-type communications (mMTC) scenario in 5G and beyond networks. In this paper, we focus on the error rate analysis in grant-free massive RA, which…

Information Theory · Computer Science 2022-05-12 Xinyu Bian , Yuyi Mao , Jun Zhang

Time-Series (TS) data has grown in importance with the rise of Internet of Things devices like sensors, but its labeling remains costly and complex. While Unsupervised Domain Adaptation (UDAs) offers an effective solution, growing data…

Machine Learning · Computer Science 2025-10-07 Yucheng Wang , Peiliang Gong , Min Wu , Felix Ott , Xiaoli Li , Lihua Xie , Zhenghua Chen

The fifth generation wireless networks focus on the design of low latency, high data rate, high reliability, and massive connectivity communications. Non-orthogonal multiple access (NOMA) is an essential enabling technology to accommodate…

Signal Processing · Electrical Eng. & Systems 2020-02-28 Fan Wei , Wen Chen , Yong peng Wu , Jun Li , Yuan Luo

As an enhanced version of massive machine-type communication in 5G, massive communication has emerged as one of the six usage scenarios anticipated for 6G, owing to its potential in industrial internet-of-things and smart metering. Driven…

Information Theory · Computer Science 2025-04-17 Yutao Chen , Wei Chen

Products codes (PCs) are conventionally decoded with efficient iterative bounded-distance decoding (iBDD) based on hard-decision channel outputs which entails a performance loss compared to a soft-decision decoder. Recently, several hybrid…

Information Theory · Computer Science 2022-11-22 Sisi Miao , Lukas Rapp , Laurent Schmalen

The dense and distributed deployment of sub-THz radio units (RUs) alongside sub-10 GHz access point (AP) is a promising approach to provide high data rate and reliable coverage for future 6G applications. However, beam search or RU…

Signal Processing · Electrical Eng. & Systems 2025-07-15 Nishant Gupta , Muris Sarajlic , Erik G. Larsson

Massive machine-type communications (mMTC) is one of the main three focus areas in the 5th generation (5G) of mobile standards to enable connectivity of a massive number of internet of things (IoT) devices with little or no human…

Signal Processing · Electrical Eng. & Systems 2019-10-16 Muhammad Basit Shahab , Rana Abbas , Mahyar Shirvanimoghaddam , Sarah J. Johnson