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An intelligent reflecting surface (IRS)-aided wireless powered mobile edge computing (WP-MEC) system is conceived, where each device's computational task can be divided into two parts for local computing and offloading to mobile edge…

Information Theory · Computer Science 2021-08-24 Guangji Chen , Qingqing Wu , Wen Chen , Derrick Wing Kwan Ng , Lajos Hanzo

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…

Information Theory · Computer Science 2024-05-31 Mahmoud AlaaEldin , Emad Alsusa , Karim G. Seddik , Constantinos B. Papadias , Mohammad Al-Jarrah

Upside Down Reinforcement Learning (UDRL) is a promising framework for solving reinforcement learning problems which focuses on learning command-conditioned policies. In this work, we extend UDRL to the task of learning a…

Machine Learning · Computer Science 2025-01-29 Jacopo Di Ventura , Dylan R. Ashley , Vincent Herrmann , Francesco Faccio , Jürgen Schmidhuber

A novel framework of intelligent reflecting surface (IRS)-aided multiple-input single-output (MISO) non-orthogonal multiple access (NOMA) network is proposed, where a base station (BS) serves multiple clusters with unfixed number of users…

Information Theory · Computer Science 2020-12-02 Xinyu Gao , Yuanwei Liu , Xiao Liu , Zhijin Qin

In this paper, the design of an optimal trajectory for an energy-constrained drone operating in dynamic network environments is studied. In the considered model, a drone base station (DBS) is dispatched to provide uplink connectivity to…

Machine Learning · Computer Science 2020-05-27 Ye Hu , Mingzhe Chen , Walid Saad , H. Vincent Poor , Shuguang Cui

Routing is one of the key functions for stable operation of network infrastructure. Nowadays, the rapid growth of network traffic volume and changing of service requirements call for more intelligent routing methods than before. Towards…

Networking and Internet Architecture · Computer Science 2020-03-30 Jiawei Wu , Jianxue Li , Yang Xiao , Jun Liu

Autonomous visual navigation is an essential element in robot autonomy. Reinforcement learning (RL) offers a promising policy training paradigm. However existing RL methods suffer from high sample complexity, poor sim-to-real transfer, and…

Robotics · Computer Science 2025-07-31 Qianzhong Chen , Jiankai Sun , Naixiang Gao , JunEn Low , Timothy Chen , Mac Schwager

In this paper, we develop a knowledge-assisted deep reinforcement learning (DRL) algorithm to design wireless schedulers in the fifth-generation (5G) cellular networks with time-sensitive traffic. Since the scheduling policy is a…

Signal Processing · Electrical Eng. & Systems 2021-02-04 Zhouyou Gu , Changyang She , Wibowo Hardjawana , Simon Lumb , David McKechnie , Todd Essery , Branka Vucetic

This letter investigates the reconfigurable intelligent surface (RIS)-assisted multiple-input single-output (MISO) wireless system, where both half-duplex (HD) and full-duplex (FD) operating modes are considered together, for the first time…

Signal Processing · Electrical Eng. & Systems 2021-10-12 Alice Faisal , Ibrahim Al-Nahhal , Octavia A. Dobre , Telex M. N. Ngatched

Intelligent reflecting surfaces (IRSs) with the ability to reconfigure inherent electromagnetic reflection and absorption characteristics in real-time provide unparalleled prospects to improve wireless connectivity in adverse circumstances.…

Signal Processing · Electrical Eng. & Systems 2022-05-18 Mobasshir Mahbub , Raed M. Shubair

We develop an efficient data-driven and model-free unsupervised learning algorithm for achieving fully passive intelligent reflective surface (IRS)-assisted optimal short/long-term beamforming in wireless communication networks. The…

Signal Processing · Electrical Eng. & Systems 2024-11-01 Spyridon Pougkakiotis , Hassaan Hashmi , Dionysis Kalogerias

Recent advances in Reinforcement Learning (RL) have surpassed human-level performance in many simulated environments. However, existing reinforcement learning techniques are incapable of explicitly incorporating already known…

Artificial Intelligence · Computer Science 2021-02-17 Rukshan Wijesinghe , Kasun Vithanage , Dumindu Tissera , Alex Xavier , Subha Fernando , Jayathu Samarawickrama

The increasing complexity of Intelligent Transportation Systems (ITS) has led to significant interest in computational offloading to external infrastructures such as edge servers, vehicular nodes, and UAVs. These dynamic and heterogeneous…

Machine Learning · Computer Science 2026-05-27 Ashab Uddin , Ahmed Hamdi Sakr , Ning Zhang

Due to the flexibility and low operational cost, dispatching unmanned aerial vehicles (UAVs) to collect information from distributed sensors is expected to be a promising solution in Internet of Things (IoT), especially for time-critical…

Information Theory · Computer Science 2020-03-03 Mengjie Yi , Xijun Wang , Juan Liu , Yan Zhang , Bo Bai

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…

Information Theory · Computer Science 2021-06-16 Pavan Reddy M. , Abhinav Kumar

Deep reinforcement learning (DRL) has achieved remarkable progress in online path planning tasks for multi-UAV systems. However, existing DRL-based methods often suffer from performance degradation when tackling unseen scenarios, since the…

Robotics · Computer Science 2024-07-16 Jiafan Zhuang , Zihao Xia , Gaofei Han , Boxi Wang , Wenji Li , Dongliang Wang , Zhifeng Hao , Ruichu Cai , Zhun Fan

With increasing interest in mmWave and THz communication systems, an unmanned aerial vehicle (UAV)-mounted intelligent reflecting surface (IRS) has been suggested as a key enabling technology to establish robust line-of-sight (LoS)…

Signal Processing · Electrical Eng. & Systems 2023-10-02 Doyoung Kim , Seongah Jeong , Jinkyu Kang

Autonomous navigation in unknown complex environment is still a hard problem, especially for small Unmanned Aerial Vehicles (UAVs) with limited computation resources. In this paper, a neural network-based reactive controller is proposed for…

Robotics · Computer Science 2021-02-03 Lei He , Aouf Nabil , Bifeng Song

Path planning methods for the unmanned aerial vehicle (UAV) in goods delivery have drawn great attention from industry and academics because of its flexibility which is suitable for many situations in the "Last Kilometer" between customer…

Machine Learning · Computer Science 2020-04-22 Linfei Feng

In this letter, we study the secure communication problem in the unmanned aerial vehicle (UAV) enabled networks aided by an intelligent reflecting surface (IRS) from the physical-layer security perspective. Specifically, the IRS is deployed…

Information Theory · Computer Science 2020-11-10 Wen Wang , Hui Tian , Wanli Ni , Meihui Hua