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Self-organizing networks (SONs) can help manage the severe interference in dense heterogeneous networks (HetNets). Given their need to automatically configure power and other settings, machine learning is a promising tool for data-driven…

Information Theory · Computer Science 2019-03-19 Roohollah Amiri , Mojtaba Ahmadi Almasi , Jeffrey G. Andrews , Hani Mehrpouyan

In massive MIMO base stations, power consumption and cost of the low-noise amplifiers (LNAs) can be substantial because of the many antennas. We investigate the feasibility of inexpensive, power efficient LNAs, which inherently are less…

Information Theory · Computer Science 2018-06-21 Christopher Mollén , Ulf Gustavsson , Thomas Eriksson , Erik G. Larsson

Multicasting in wireless systems is a natural way to exploit the redundancy in user requests in a Content Centric Network. Power control and optimal scheduling can significantly improve the wireless multicast network's performance under…

Networking and Internet Architecture · Computer Science 2021-12-08 Ramkumar Raghu , Mahadesh Panju , Vaneet Aggarwal , Vinod Sharma

The paradigm of layered networks is used to describe many real-world systems -- from biological networks, to social organizations and transportation systems. Recently there has been much progress in understanding the general properties of…

Physics and Society · Physics 2016-10-05 Márton Pósfai , Jianxi Gao , Sean P. Cornelius , Albert-László Barabási , Raissa M. D'Souza

This paper introduces an incremental training framework for compressing popular Deep Neural Network (DNN) based unfolded multiple-input-multiple-output (MIMO) detection algorithms like DetNet. The idea of incremental training is explored to…

Information Theory · Computer Science 2021-04-19 Nancy Nayak , Thulasi Tholeti , Muralikrishnan Srinivasan , Sheetal Kalyani

One main challenge for implementing intelligent reflecting surface (IRS) aided communications lies in the difficulty to obtain the channel knowledge for the base station (BS)-IRS-user cascaded links, which is needed to design…

Information Theory · Computer Science 2023-09-18 He Sun , Weidong Mei , Lipeng Zhu , Rui Zhang

In future B5G/6G broadband communication systems, non-linear signal distortion caused by the impairment of transmit power amplifier (PA) can severely degrade the communication performance, especially when uplink users share the wireless…

Networking and Internet Architecture · Computer Science 2023-08-25 Xiaojia Wang , Suzhi Bi , Xian Li , Xiaohui Lin , Zhi Quan , Ying-Jun Angela Zhang

This paper compares centralized and distributed methods to solve the power minimization problem with quality-of-service (QoS) constraints in the downlink (DL) of multi-cell Massive multiple-input multiple-output (MIMO) systems. In…

Information Theory · Computer Science 2018-02-21 Trinh Van Chien , Emil Björnson , Erik G. Larsson , Tuan Anh Le

It is known that demand and supply power balancing is an essential method to operate power delivery system and prevent blackouts caused by power shortage. In this paper, we focus on the implementation of demand response strategy to save…

Systems and Control · Computer Science 2015-06-16 Kei Sakaguchi , Van Ky Nguyen , Yu Tao , Gia Khanh Tran , Kiyomichi Araki

Optimal physical layer multicasting (PLM) is an NP-hard problem that for simplicity has been studied under idealistic assumptions, e.g., availability of perfect channel state information (CSI), both at the base station (BS) and at the user…

Information Theory · Computer Science 2017-09-25 Meysam Sadeghi , Emil Björnson , Erik G. Larsson , Chau Yuen , Thomas L. Marzetta

Intelligent reflecting surface (IRS) is a new and revolutionary technology capable of reconfiguring the wireless propagation environment by controlling its massive low-cost passive reflecting elements. Different from prior works that focus…

Information Theory · Computer Science 2021-11-05 Bifeng Ling , Jiangbin Lyu , Liqun Fu

This paper considers a cell-free massive multiple-input multiple-output (MIMO) system that consists of a large number of geographically distributed access points (APs) serving multiple users via coherent joint transmission. The downlink…

Signal Processing · Electrical Eng. & Systems 2022-09-15 Mahmoud Zaher , Özlem Tuğfe Demir , Emil Björnson , Marina Petrova

This paper considers multiple-input multiple-output (MIMO) relay communication in multi-cellular (interference) systems in which MIMO source-destination pairs communicate simultaneously. It is assumed that due to severe attenuation and/or…

Information Theory · Computer Science 2017-03-28 Muhammad R A Khandaker , Kai-Kit Wong

Discrete-time Rayleigh fading single-input single-output (SISO) and multiple-input multiple-output (MIMO) channels are considered, with no channel state information at the transmitter or the receiver. The fading is assumed to be stationary…

Information Theory · Computer Science 2016-11-17 Vignesh Sethuraman , Ligong Wang , Bruce Hajek , Amos Lapidoth

This paper studies learning-based decentralized power control methods for cell-free massive multiple-input multiple-output (MIMO) systems where a central processor (CP) controls access points (APs) through fronthaul coordination. To…

Signal Processing · Electrical Eng. & Systems 2023-03-07 Daesung Yu , Hoon Lee , Seung-Eun Hong , Seok-Hwan Park

We consider the problem of spectrum sharing in a cognitive radio system consisting of a primary user and a secondary user. The primary user and the secondary user work in a non-cooperative manner. Specifically, the primary user is assumed…

Information Theory · Computer Science 2018-05-08 Xingjian Li , Jun Fang , Wen Cheng , Huiping Duan , Zhi Chen , Hongbin Li

This paper discusses the systematic design of an adaptive feedback linearizing neurocontroller for a high-order model of the synchronous machine/infinite bus power system. The power system is first modelled as an input-output nonlinear…

Optimization and Control · Mathematics 2007-05-23 Kingsley Fregene , Diane Kennedy

Neural networks have proven practical for a synergistic combination of advanced control techniques. This work analyzes the implementation of rectified linear unit neural networks to achieve constrained control in differentially flat…

Systems and Control · Electrical Eng. & Systems 2026-04-06 Huu-Thinh Do , Ionela Prodan , Florin Stoican

Multi-Layer Perceptrons (MLP) are powerful tools for representing complex, non-linear relationships, making them essential for diverse machine learning and AI applications. Efficient hardware implementation of MLPs can be achieved through…

Hardware Architecture · Computer Science 2024-10-15 Maedeh Ghaderi , Arvin Delavari , Faraz Ghoreishy , Sattar Mirzakuchaki

This paper considers a demand response agent that must find a near-optimal sequence of decisions based on sparse observations of its environment. Extracting a relevant set of features from these observations is a challenging task and may…

Machine Learning · Computer Science 2020-01-28 Frederik Ruelens , Bert J. Claessens , Peter Vrancx , Fred Spiessens , Geert Deconinck
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