Search Results for author: Shengheng Liu

Found 11 papers, 1 papers with code

Random Aggregate Beamforming for Over-the-Air Federated Learning in Large-Scale Networks

no code implementations20 Feb 2024 Chunmei Xu, Shengheng Liu, Yongming Huang, Bjorn Ottersten, Dusit Niyato

Extensive simulation results are presented to demonstrate the effectiveness of the proposed random aggregate beamforming-based scheme as well as the refined method.

Federated Learning

In-Situ Calibration of Antenna Arrays for Positioning With 5G Networks

no code implementations8 Mar 2023 Mengguan Pan, Shengheng Liu, Peng Liu, Wangdong Qi, Yongming Huang, Wang Zheng, Qihui Wu, Markus Gardill

Owing to the ubiquity of cellular communication signals, positioning with the fifth generation (5G) signal has emerged as a promising solution in global navigation satellite system-denied areas.

Super-Resolution

Fast Direct Localization for Millimeter Wave MIMO Systems via Deep ADMM Unfolding

no code implementations6 Feb 2023 Wenzhe Fan, Shengheng Liu, ChunGuo Li, Yongming Huang

Next, we develop a deep ADMM unfolding network (DAUN) to learn the ADMM parameter settings from the training data and a position refinement algorithm is proposed for DAUN.

Link-level simulator for 5G localization

1 code implementation26 Dec 2022 Xinghua Jia, Peng Liu, Wangdong Qi, Shengheng Liu, Yongming Huang, Wang Zheng, Mengguan Pan, Xiaohu You

Channel-state-information-based localization in 5G networks has been a promising way to obtain highly accurate positions compared to previous communication networks.

Efficient Joint DOA and TOA Estimation for Indoor Positioning with 5G Picocell Base Stations

no code implementations20 Jun 2022 Mengguan Pan, Peng Liu, Shengheng Liu, Wangdong Qi, Yongming Huang, Xiaohu You, Xinghua Jia, XiaoDong Li

Secondly, based on the deployment reality that 5G picocell gNBs only have a small-scale antenna array but have a large signal bandwidth, the proposed scheme decouples the estimation of time-of-arrival (TOA) and direction-of-arrival (DOA) to reduce the huge complexity induced by two-dimensional joint processing.

Joint DoA-Range Estimation Using Space-Frequency Virtual Difference Coarray

no code implementations15 Apr 2022 Zihuan Mao, Shengheng Liu, Yimin D. Zhang, Leixin Han, Yongming Huang

In this paper, we address the problem of joint direction-of-arrival (DoA) and range estimation using frequency diverse coprime array (FDCA).

Distributed Reinforcement Learning for Privacy-Preserving Dynamic Edge Caching

no code implementations20 Oct 2021 Shengheng Liu, Chong Zheng, Yongming Huang, Tony Q. S. Quek

In this paper, a privacy-preserving distributed deep deterministic policy gradient (P2D3PG) algorithm is proposed to maximize the cache hit rates of devices in the MEC networks.

Edge-computing Federated Learning +3

Hybrid Policy Learning for Energy-Latency Tradeoff in MEC-Assisted VR Video Service

no code implementations2 Apr 2021 Chong Zheng, Shengheng Liu, Yongming Huang, Luxi Yang

Virtual reality (VR) is promising to fundamentally transform a broad spectrum of industry sectors and the way humans interact with virtual content.

Edge-computing

Rank Minimization-based Toeplitz Reconstruction for DoA Estimation Using Coprime Array

no code implementations29 Mar 2021 Shengheng Liu, Zihuan Mao, Yimin D. Zhang, Yongming Huang

The atomic-norm representation of the measurements from the interpolated virtual array is considered, and the equivalent dual-variable rank minimization problem is formulated and solved using a cyclic optimization approach.

True-data Testbed for 5G/B5G Intelligent Network

no code implementations26 Nov 2020 Yongming Huang, Shengheng Liu, Cheng Zhang, Xiaohu You, Hequan Wu

Future beyond fifth-generation (B5G) and sixth-generation (6G) mobile communications will shift from facilitating interpersonal communications to supporting Internet of Everything (IoE), where intelligent communications with full integration of big data and artificial intelligence (AI) will play an important role in improving network efficiency and providing high-quality service.

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