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Harmonic retrieval techniques are the foundation of radio channel sounding, estimation, and modeling. This paper introduces a Deep Learning approach for joint delay- and Doppler estimation from frequency and time samples of a radio channel…

Signal Processing · Electrical Eng. & Systems 2023-12-20 Steffen Schieler , Sebastian Semper , Reza Faramarzahangari , Michael Döbereiner , Christian Schneider , R. Thomä

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

We study a delay-constrained grant-free random access system with a multi-antenna base station. The users randomly generate data packets with expiration deadlines, which are then transmitted from data queues on a first-in first-out basis.…

Information Theory · Computer Science 2024-10-23 Jianan Bai , Zheng Chen , Erik. G. Larsson

Orthogonal frequency division multiplexing (OFDM), usually with sufficient cyclic prefix (CP), has been widely applied in various communication systems. The CP in OFDM consumes additional resource and reduces spectrum and energy efficiency.…

Information Theory · Computer Science 2019-05-07 Jing Zhang , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

In this paper, we propose a novel splitting receiver, which involves joint processing of coherently and non-coherently received signals. Using a passive RF power splitter, the received signal at each receiver antenna is split into two…

Information Theory · Computer Science 2017-10-13 Wanchun Liu , Xiangyun Zhou , Salman Durrani , Petar Popovski

In wireless communications systems, the user equipment (UE) transmits a random access preamble sequence to the base station (BS) to be detected and synchronized. In standardized cellular communications systems Zadoff-Chu sequences has been…

Information Theory · Computer Science 2021-10-07 Jafar Mohammadi , Gerhard Schreiber , Thorsten Wild , Yejian Chen

In this article, we use deep neural networks (DNNs) to develop a wireless end-to-end communication system, in which DNNs are employed for all signal-related functionalities, such as encoding, decoding, modulation, and equalization. However,…

Information Theory · Computer Science 2018-07-03 Hao Ye , Geoffrey Ye Li , Biing-Hwang Fred Juang , Kathiravetpillai Sivanesan

The use of unlicensed spectrum for cellular systems to mitigate spectrum scarcity has led to the development of intelligent adaptive approaches to spectrum access that improve upon traditional carrier sensing and listen-before-talk methods.…

Signal Processing · Electrical Eng. & Systems 2023-03-13 Akash Doshi , Jeffrey G. Andrews

Coverage control is the problem of navigating a robot swarm to collaboratively monitor features or a phenomenon of interest not known a priori. The problem is challenging in decentralized settings with robots that have limited communication…

Robotics · Computer Science 2025-11-04 Saurav Agarwal , Ramya Muthukrishnan , Walker Gosrich , Vijay Kumar , Alejandro Ribeiro

PUBLISHED ON IEEE/ASME TRANSACTIONS ON MECHATRONICS, DOI: 10.1109/TMECH.2021.3100150. Ideally, accurate sensor measurements are needed to achieve a good performance in the closed-loop control of mechatronic systems. As a consequence, sensor…

Systems and Control · Electrical Eng. & Systems 2021-12-02 Daulet Baimukashev , Bexultan Rakhim , Matteo Rubagotti , Huseyin Atakan Varol

We consider a basic communication and sensing setup comprising a transmitter, a receiver and a sensor. The transmitter sends an encoded sequence to the receiver through a discrete memoryless channel, and the receiver is interested in…

Information Theory · Computer Science 2022-05-11 Han Wu , Hamdi Joudeh

We propose an efficient protocol for decentralized training of deep neural networks from distributed data sources. The proposed protocol allows to handle different phases of model training equally well and to quickly adapt to concept…

Machine Learning · Computer Science 2018-11-14 Michael Kamp , Linara Adilova , Joachim Sicking , Fabian Hüger , Peter Schlicht , Tim Wirtz , Stefan Wrobel

Non-orthogonal communications are expected to play a key role in future wireless systems. In downlink transmissions, the data symbols are broadcast from a base station to different users, which are superimposed with different power to…

Information Theory · Computer Science 2022-08-01 Thien Van Luong , Nir Shlezinger , Chao Xu , Tiep M. Hoang , Yonina C. Eldar , Lajos Hanzo

We propose a deep-learning approach for the joint MIMO detection and channel decoding problem. Conventional MIMO receivers adopt a model-based approach for MIMO detection and channel decoding in linear or iterative manners. However, due to…

Information Theory · Computer Science 2019-01-18 Taotao Wang , Lihao Zhang , Soung Chang Liew

Effective and adaptive interference management is required in next generation wireless communication systems. To address this challenge, Rate-Splitting Multiple Access (RSMA), relying on multi-antenna rate-splitting (RS) at the transmitter…

Signal Processing · Electrical Eng. & Systems 2022-12-21 Rafael Cerna Loli , Onur Dizdar , Bruno Clerckx , Cong Ling

Radio access management plays a vital role in delay and energy consumption of connected devices. The radio access in existing cellular networks is unable to efficiently support massive connectivity, due to its signaling overhead. In this…

Information Theory · Computer Science 2017-09-08 Amin Azari , Petar Popovski , Guowang Miao , Cedomir Stefanovic

This paper proposes a channel access control scheme fit to dense acoustic sensor nodes in a sensor network. In the considered scenario, multiple acoustic sensor nodes within communication range of a cluster head are grouped into clusters.…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-11-06 Hyun-Gyu Ryu , Sang-Keum Lee , Dongsoo Har

We propose and practically demonstrate a joint detection and decoding scheme for short-packet wireless communications in scenarios that require to first detect the presence of a message before actually decoding it. For this, we extend the…

Information Theory · Computer Science 2022-07-13 Sebastian Dörner , Jannis Clausius , Sebastian Cammerer , Stephan ten Brink

In this article, we propose a model-driven deep learning (DL) approach that combines DL with the expert knowledge to replace the existing orthogonal frequency-division multiplexing (OFDM) receiver in wireless communications. Different from…

Signal Processing · Electrical Eng. & Systems 2018-10-23 Xuanxuan Gao , Shi Jin , Chao-Kai Wen , Geoffrey Ye Li

We study the problem of end-to-end learning from complex multigraphs with potentially very large numbers of edges between two vertices, each edge labeled with rich information. Examples range from communication networks to flights between…

Machine Learning · Statistics 2021-01-26 Floris Hermsen , Peter Bloem , Fabian Jansen , Wolf Vos