Search Results for author: Geng Sun

Found 15 papers, 2 papers with code

UAV-enabled Collaborative Beamforming via Multi-Agent Deep Reinforcement Learning

no code implementations11 Apr 2024 Saichao Liu, Geng Sun, Jiahui Li, Shuang Liang, Qingqing Wu, Pengfei Wang, Dusit Niyato

To improve the work efficiency of the UVAA, we formulate a UAV-enabled collaborative beamforming multi-objective optimization problem (UCBMOP) to simultaneously maximize the transmission rate of the UVAA and minimize the energy consumption of all UAVs by optimizing the positions and excitation current weights of all UAVs.

reinforcement-learning

Collaborative Ground-Space Communications via Evolutionary Multi-objective Deep Reinforcement Learning

no code implementations11 Apr 2024 Jiahui Li, Geng Sun, Qingqing Wu, Dusit Niyato, Jiawen Kang, Abbas Jamalipour, Victor C. M. Leung

Specifically, it is found that DCB enables terminals that cannot reach the uplink achievable threshold to achieve efficient direct uplink transmission, which thus reveals that DCB is an effective solution for enabling direct ground-space communications.

A Two Time-Scale Joint Optimization Approach for UAV-assisted MEC

no code implementations6 Apr 2024 Zemin Sun, Geng Sun, Long He, Fang Mei, Shuang Liang, Yanheng Liu

In the short time scale, we propose a price-incentive method for on-demand computing resource allocation and a matching mechanism-based method for computation offloading.

Edge-computing

TJCCT: A Two-timescale Approach for UAV-assisted Mobile Edge Computing

no code implementations23 Mar 2024 Zemin Sun, Geng Sun, Qingqing Wu, Long He, Shuang Liang, Hongyang Pan, Dusit Niyato, Chau Yuen, Victor C. M. Leung

Since the problem is a non-convex and NP-hard mixed integer nonlinear programming (MINLP), we propose a two-timescale joint computing resource allocation, computation offloading, and trajectory control (TJCCT) approach for solving the problem.

Edge-computing

UAV Swarm-enabled Collaborative Secure Relay Communications with Time-domain Colluding Eavesdropper

no code implementations3 Oct 2023 Chuang Zhang, Geng Sun, Qingqing Wu, Jiahui Li, Shuang Liang, Dusit Niyato, Victor C. M. Leung

Unmanned aerial vehicles (UAVs) as aerial relays are practically appealing for assisting Internet of Things (IoT) network.

Joint Scheduling and Trajectory Optimization of Charging UAV in Wireless Rechargeable Sensor Networks

no code implementations30 Sep 2023 Yanheng Liu, Hongyang Pan, Geng Sun, Aimin Wang, Jiahui Li, Shuang Liang

Wireless rechargeable sensor networks with a charging unmanned aerial vehicle (CUAV) have the broad application prospects in the power supply of the rechargeable sensor nodes (SNs).

Scheduling

Joint Power and 3D Trajectory Optimization for UAV-enabled Wireless Powered Communication Networks with Obstacles

no code implementations30 Sep 2023 Hongyang Pan, Yanheng Liu, Geng Sun, Junsong Fan, Shuang Liang, Chau Yuen

For UTTOP, we first introduce a pretreatment method, and then use an improved particle swarm optimization with Normal distribution initialization, Genetic mechanism, Differential mechanism and Pursuit operator (PSO-NGDP) to deal with this sub optimization problem.

Scheduling

Joint Task Offloading and Resource Allocation in Aerial-Terrestrial UAV Networks with Edge and Fog Computing for Post-Disaster Rescue

no code implementations17 Aug 2023 Geng Sun, Long He, Zemin Sun, Qingqing Wu, Shuang Liang, Jiahui Li, Dusit Niyato, Victor C. M. Leung

Unmanned aerial vehicles (UAVs) play an increasingly important role in assisting fast-response post-disaster rescue due to their fast deployment, flexible mobility, and low cost.

Edge-computing

Multi-Objective Optimization for UAV Swarm-Assisted IoT with Virtual Antenna Arrays

no code implementations3 Aug 2023 Jiahui Li, Geng Sun, Lingjie Duan, Qingqing Wu

The existing UAV-assisted data harvesting and dissemination schemes largely require UAVs to frequently fly between the IoTs and access points, resulting in extra energy and time costs.

Total Energy

Unsupervised domain adaptation semantic segmentation of high-resolution remote sensing imagery with invariant domain-level prototype memory

1 code implementation16 Aug 2022 Jingru Zhu, Ya Guo, Geng Sun, Libo Yang, Min Deng, Jie Chen

This study proposes a novel unsupervised domain adaptation semantic segmentation network (MemoryAdaptNet) for the semantic segmentation of HRS imagery.

Pseudo Label Pseudo Label Filtering +3

UDH: Universal Deep Hiding for Steganography, Watermarking, and Light Field Messaging

1 code implementation NeurIPS 2020 Chaoning Zhang, Philipp Benz, Adil Karjauv, Geng Sun, In Kweon

This is the first work demonstrating the success of (DNN-based) hiding a full image for watermarking and LFM.

A Visual-inertial Navigation Method for High-Speed Unmanned Aerial Vehicles

no code implementations12 Feb 2020 Xin-long Luo, Jia-hui Lv, Geng Sun

This paper investigates the localization problem of high-speed high-altitude unmanned aerial vehicle (UAV) with a monocular camera and inertial navigation system.

Vocal Bursts Intensity Prediction

Symplectic Geometric Methods for Matrix Differential Equations Arising from Inertial Navigation Problems

no code implementations11 Feb 2020 Xin-long Luo, Geng Sun

This article explores some geometric and algebraic properties of the dynamical system which is represented by matrix differential equations arising from inertial navigation problems, such as the symplecticity and the orthogonality.

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