Search Results for author: Chengcheng Xu

Found 6 papers, 1 papers with code

UniTSA: A Universal Reinforcement Learning Framework for V2X Traffic Signal Control

1 code implementation8 Dec 2023 Maonan Wang, Xi Xiong, Yuheng Kan, Chengcheng Xu, Man-on Pun

Traffic congestion is a persistent problem in urban areas, which calls for the development of effective traffic signal control (TSC) systems.

reinforcement-learning Reinforcement Learning (RL)

ADLight: A Universal Approach of Traffic Signal Control with Augmented Data Using Reinforcement Learning

no code implementations24 Oct 2022 Maonan Wang, Yutong Xu, Xi Xiong, Yuheng Kan, Chengcheng Xu, Man-on Pun

In this paper, we propose a novel reinforcement learning approach with augmented data (ADLight) to train a universal model for intersections with different structures.

Data Augmentation reinforcement-learning +1

Rate-Splitting Multiple Access for Multi-Antenna Joint Radar and Communications

no code implementations14 Mar 2021 Chengcheng Xu, Bruno Clerckx, Shiwa Chen, Yijie Mao, Jianyun Zhang

In this work, we propose a powerful and unified multi-antenna DFRC transmission framework, where an additional radar sequence is transmitted apart from communication streams to enhance radar beampattern matching capability, and Rate-Splitting Multiple Access (RSMA) is adopted to better manage the interference.

Multi-Antenna Joint Radar and Communications: Precoder Optimization and Weighted Sum-Rate vs Probing Power Tradeoff

no code implementations28 Jan 2021 Chengcheng Xu, Bruno Clerckx, Jianyun Zhang

The tradeoffs between WSR and probing power at target are compared among both proposed transmissions and two practically simpler dual-function implementations i. e., time division and frequency division.

Signal Shaping for Non-Uniform Beamspace Modulated mmWave Hybrid MIMO Communications

no code implementations23 Jun 2020 Shuaishuai Guo, Haixia Zhang, Peng Zhang, Shuping Zhang, Chengcheng Xu, Mohamed-Slim Alouini

Specifically, we firstly propose a joint optimization based signal shaping (JOSS) approach, in which the symbol vector sets used for all analog precoder activation states are jointly optimized by solving a series of quadratically constrained quadratic programming (QCQP) problems.

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