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The future of industrial applications is shaped by intelligent moving IoT devices, such as flying drones, advanced factory robots, and connected vehicles, which may operate (semi-)autonomously. In these challenging scenarios, dynamic radio…

Signal Processing · Electrical Eng. & Systems 2018-09-12 Mike Koivisto , Olga Galinina , Sergey Andreev , Antti Tölli , Giuseppe Destino , Mário Costa , Kari Leppänen , Yevgeni Koucheryavy , Mikko Valkama

One of the main challenges in IoT is providing communication support to an increasing number of connected devices. In recent years, narrowband radio technology has emerged to address this situation: Narrowband Internet of Things (NB-IoT),…

Networking and Internet Architecture · Computer Science 2019-12-25 Emmanuel Luján , Juan A. Zuloaga Mellino , Alejandro D. Otero , Leonardo Rey Vega , Cecilia G. Galarza , Esteban E. Mocskos

Massive device connectivity is a crucial communication challenge for Internet of Things (IoT) networks, which consist of a large number of devices with sporadic traffic. In each coherence block, the serving base station needs to identify…

Information Theory · Computer Science 2018-10-02 Tao Jiang , Yuanming Shi , Jun Zhang , Khaled B. Letaief

The detection of the environment where user is located, is of extreme use for the identification of Activities of Daily Living (ADL). ADL can be identified by use of the sensors available in many off-the-shelf mobile devices, including…

Sound · Computer Science 2017-11-02 Ivan Miguel Pires , Nuno M. Garcia , Nuno Pombo , Francisco Flórez-Revuelta

Positioning is becoming a key component in many Internet of Things (IoT) applications. The main challenges and limitations are the narrow bandwidth, low power and low cost which reduces the accuracy of the time of arrival (TOA) estimation.…

Signal Processing · Electrical Eng. & Systems 2020-07-21 Guangjin Pan , Tao Wang , Xiufeng Jiang , Shunqing Zhang

Hybrid reflective intelligent surfaces (HRISs) can support localization in sixth-generation (6G) networks thanks to their ability to generate narrow beams and at the same time receive and process locally the impinging signals. In this…

Signal Processing · Electrical Eng. & Systems 2024-10-16 Mattia Piana , Stefano Tomasin

Reliable and robust positioning of radio devices remains a challenging task due to multipath propagation, hardware impairments, and interference from other radio transmitters. A frequently overlooked but critical factor is the agent itself,…

Signal Processing · Electrical Eng. & Systems 2026-04-08 Hong Zhu , Alexander Venus , Erik Leitinger , Klaus Witrisal

Many location-based services use Received Signal Strength (RSS) measurements due to their universal availability. In this paper, we study the association of a large number of low-cost Internet-of-Things (IoT) sensors and their possible…

Information Retrieval · Computer Science 2021-11-04 Yulong Wang , Shenghong Li , Wei Ni , David Abbott , Mark Johnson , Guangyu Pei , Mark Hedley

In this letter, we propose a deep learning-aided multi-user detection (DeepMuD) in uplink non-orthogonal multiple access (NOMA) to empower the massive machine-type communication where an offline-trained Long Short-Term Memory (LSTM)-based…

Information Theory · Computer Science 2021-02-19 Ahmet Emir , Ferdi Kara , Hakan Kaya , Halim Yanikomeroglu

The rise of Artificial Intelligence (AI)-driven services, machine-type communications, and massive Internet of Things (IoT) deployments is reshaping wireless traffic toward dense, uplink-oriented, bursty, and latency-critical patterns. In…

Signal Processing · Electrical Eng. & Systems 2026-04-16 João Paulo S. H. Lima , Marcin L. Filo , Chathura Jayawardena , Konstantinos Nikitopoulos

With the emergence of simultaneous localization and communication (SLAC), it becomes more and more attractive to perform angle of departure (AoD) estimation at the receiving Internet of Thing (IoT) user end for improved positioning…

Signal Processing · Electrical Eng. & Systems 2025-04-22 Jiaying Li , Yuanwei Liu , Hong Xing

The rapid deployment of Internet of Things (IoT) devices has led to large-scale sensor networks that monitor environmental and urban phenomena in real time. Communities of Interest (CoIs) provide a promising paradigm for organising…

This research presents a novel framework that combines traditional Optical Time-Domain Reflectometer (OTDR) signal analysis with machine learning to localize and classify fiber optic faults in rural broadband infrastructures. The proposed…

Networking and Internet Architecture · Computer Science 2025-06-04 Sabab Al Farabi

Fifth generation~(5G) networks providing much higher bandwidth and faster data rates will allow connecting vast number of static and mobile devices, sensors, agents, users, machines, and vehicles, supporting Internet-of-Things (IoT),…

Systems and Control · Computer Science 2018-02-14 Sam Safavi , Usman A. Khan , Soummya Kar , José M. F. Moura

A novel framework of the unmanned aerial vehicle (UAV)-mounted active simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) communications with the non-orthogonal multiple access (NOMA) is proposed for…

Signal Processing · Electrical Eng. & Systems 2025-01-07 Jingjing Zhao , Qian Xu , Xidong Mu , Yuanwei Liu , Yanbo Zhu

We investigate reconfigurable intelligent surface (RIS)-assisted simultaneous wireless information and power transfer (SWIPT) Internet of Things (IoT) networks, where energy-limited IoT devices are overlaid with cellular information users…

Information Theory · Computer Science 2024-07-18 Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou

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…

Signal Processing · Electrical Eng. & Systems 2022-11-15 Ziyue Wang , Zhilin Chen , Ya-Feng Liu , Foad Sohrabi , Wei Yu

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…

Information Theory · Computer Science 2019-06-26 Jue Wang , Zhaoyang Zhang , Lajos Hanzo

We propose a novel location-aware pilot assignment scheme to mitigate pilot contamination in massive multiple-input multiple-output (MIMO) networks, where the channels are subjected to Rician fading. Our proposed scheme utilizes the…

Information Theory · Computer Science 2020-01-14 Noman Akbar , Shihao Yan , Nan Yang , Jinhong Yuan

Extremely large-scale multiple-input multiple-output (XL-MIMO) is gaining attention as a prominent technology for enabling the sixth-generation (6G) wireless networks. However, the vast antenna array and the huge bandwidth introduce a…

Signal Processing · Electrical Eng. & Systems 2024-12-03 Hao Lei , Jiayi Zhang , Huahua Xiao , Derrick Wing Kwan Ng , Bo Ai
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