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Recently, deep reinforcement learning (DRL)-based approach has shown promisein solving complex decision and control problems in power engineering domain.In this paper, we present an in-depth analysis of DRL-based voltage control fromaspects…

人工智能 · 计算机科学 2020-12-25 Xiren Zhou , Siqi Wang , Ruisheng Diao , Desong Bian , Jiahui Duan , Di Shi

In this letter, we analyze the performance of the intelligent reflecting surface (IRS) assisted downlink non-orthogonal multiple access (NOMA) systems in the presence of imperfect phase compensation. We derive an upper bound on the…

信息论 · 计算机科学 2021-06-16 Pavan Reddy M. , Abhinav Kumar

Hybrid reconfigurable intelligent surfaces (HRIS) enhance wireless systems by combining passive reflection with active signal amplification. However, jointly optimizing the transmit beamforming with the HRIS reflection and amplification…

信号处理 · 电气工程与系统科学 2026-04-13 Phuong Nam Tran , Nhan Thanh Nguyen , Markku Juntti

This work investigates the performance of intelligent reflective surfaces (IRSs) assisted uplink non-orthogonal multiple access (NOMA) in energy-constrained networks. Specifically, we formulate and solve two optimization problems; the first…

This work explores the deployment of active reconfigurable intelligent surfaces (A-RIS) in integrated terrestrial and non-terrestrial networks (TN-NTN) while utilizing coordinated multipoint non-orthogonal multiple access (CoMP-NOMA). Our…

In this work, two problems associated with a downlink multi-user system are considered with the aid of intelligent reflecting surface (IRS): weighted sum-rate maximization and weighted minimal-rate maximization. For the first problem, a…

信息论 · 计算机科学 2022-01-25 Liyue Zhang , Qing Wang , Haozhi Wang , Peng Chen , Hua Chen , Wei Liu , Zhiqiang Wu

Combining intelligent reflecting surface (IRS) and non-orthogonal multiple access (NOMA) is an effective solution to enhance communication coverage and energy efficiency. In this paper, we focus on an IRS-assisted NOMA network and propose…

信号处理 · 电气工程与系统科学 2020-09-14 Fang Fang , Yanqing Xu , Quoc-Viet Pham , Zhiguo Ding

The model-based power allocation algorithm has been investigated for decades, but it requires the mathematical models to be analytically tractable and it usually has high computational complexity. Recently, the data-driven model-free…

信息论 · 计算机科学 2019-01-23 Fan Meng , Peng Chen , Lenan Wu , Julian Cheng

Wireless support of virtual reality (VR) has challenges when a network has multiple users, particularly for 3D VR gaming, digital AI avatars, and remote team collaboration. This work addresses these challenges through investigation of the…

网络与互联网体系结构 · 计算机科学 2025-07-28 Muhammad Ahmed Mohsin , Sagnik Bhattacharya , Abhiram Gorle , Muhammad Ali Jamshed , John M. Cioffi

Federal Energy Regulatory Commission (FERC) Orders 841 and 2222 have recommended that distributed energy resources (DERs) should participate in energy and reserve markets; therefore, a mechanism needs to be developed to facilitate DERs'…

系统与控制 · 电气工程与系统科学 2023-05-09 Mukesh Gautam , Rakib Hossain , Mohammad MansourLakouraj , Narayan Bhusal , Mohammed Benidris , Hanif Livani

In this letter, we investigate a joint power and beamforming design problem for rate-splitting multiple access (RSMA)-based aerial communications with energy harvesting, where a self-sustainable aerial base station serves multiple users by…

信息论 · 计算机科学 2023-06-23 Jaehyup Seong , Mesut Toka , Wonjae Shin

The escalating interests on underwater exploration/reconnaissance applications have motivated high-rate data transmission from underwater to airborne relaying platforms, especially under high-sea scenarios. Thanks to its broad bandwidth and…

信号处理 · 电气工程与系统科学 2024-09-06 Jiayue Liu , Tianqi Mao , Dongxuan He , Yang Yang , Zhen Gao , Dezhi Zheng , Jun Zhang

Renewable energy resources (RERs) have been increasingly integrated into large-scale distributed power systems. Considering uncertainties and voltage fluctuation issues introduced by RERs, in this paper, we propose a deep reinforcement…

机器学习 · 计算机科学 2022-08-08 Jinhao Li , Ruichang Zhang , Hao Wang , Zhi Liu , Hongyang Lai , Yanru Zhang

The integration of distributed energy resources (DER) has escalated the challenge of voltage magnitude regulation in distribution networks. Traditional model-based approaches, which rely on complex sequential mathematical formulations,…

系统与控制 · 电气工程与系统科学 2024-11-05 Shengren Hou , Peter Palensky , Pedro P. Vergara

Non-orthogonal multiple access (NOMA) scheme enables serving users with the same resource block i.e. frequency or time by multiplexing the signal of the users. Intelligent reflecting surfaces (IRS) or reconfigurable intelligent surfaces…

信号处理 · 电气工程与系统科学 2022-11-24 Mobasshir Mahbub , Raed M. Shubair

This paper defines the problem of optimizing the downlink multi-user multiple input, single output (MU-MISO) sum-rate for ground users served by an aerial reconfigurable intelligent surface (ARIS) that acts as a relay to the terrestrial…

信号处理 · 电气工程与系统科学 2022-07-14 Aly Sabri Abdalla , Vuk Marojevic

This paper considers a two-user downlink transmission in intelligent reflecting surface (IRS) aided network over fading channels. Particularly, non-orthogonal multiple access (NOMA) and two orthogonal multiple access (OMA) schemes, namely,…

信息论 · 计算机科学 2020-09-28 Yiyu Guo , Zhijin Qin , Yuanwei Liu , Naofal Al-Dhahir

The problem of resource constrained scheduling in a dynamic and heterogeneous wireless setting is considered here. In our setup, the available limited bandwidth resources are allocated in order to serve randomly arriving service demands,…

机器学习 · 计算机科学 2022-04-01 Apostolos Avranas , Marios Kountouris , Philippe Ciblat

Intelligent reflecting surface (IRS) enhanced multi-unmanned aerial vehicle (UAV) non-orthogonal multiple access (NOMA) networks are investigated. A new transmission framework is proposed, where multiple UAV-mounted base stations employ…

信息论 · 计算机科学 2021-10-07 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , H. Vincent Poor

We investigate THz communication uplink multiple access using cascaded intelligent reflecting surfaces (IRSs) assuming correlated channels. Two independent objectives to be achieved via adjusting the phases of the cascaded IRSs: 1)…