Search Results for author: Chuanhong Liu

Found 8 papers, 0 papers with code

OFDM-Based Digital Semantic Communication with Importance Awareness

no code implementations4 Jan 2024 Chuanhong Liu, Caili Guo, Yang Yang, Wanli Ni, Tony Q. S. Quek

Based on semantic importance, we formulate a sub-carrier and bit allocation problem to maximize communication performance.

Task-Oriented Explainable Semantic Communication Based on Semantic Triplets

no code implementations22 Mar 2023 Chuanhong Liu

A novel semantic extraction method is proposed to convert transmitted text into semantic triplets, where syntactic dependency analysis is introduced to improve semantic completeness.

Question Answering Sentiment Analysis

Deep Joint Source-Channel Coding for Wireless Image Transmission with Semantic Importance

no code implementations5 Feb 2023 Qizheng Sun, Caili Guo, Yang Yang, Jiujiu Chen, Rui Tang, Chuanhong Liu

Specifically, we first propose semantic importance weight calculation method, which is based on the gradient of intelligent task's perception results with respect to the features.

Deep Joint Source-Channel Coding Based on Semantics of Pixels

no code implementations24 Aug 2022 Qizheng Sun, Caili Guo, Yang Yang, Jiujiu Chen, Rui Tang, Chuanhong Liu

The semantic information of the image for intelligent tasks is hidden behind the pixels, and slight changes in the pixels will affect the performance of intelligent tasks.

Adaptable Semantic Compression and Resource Allocation for Task-Oriented Communications

no code implementations19 Apr 2022 Chuanhong Liu, Caili Guo, Yang Yang, Nan Jiang

To solve the problem, both compression ratio and resource allocation are optimized for the task-oriented communication system to maximize the success probability of tasks.

Bandwidth and Power Allocation for Task-Oriented SemanticCommunication

no code implementations26 Jan 2022 Chuanhong Liu, Caili Guo, Yang Yang, Jiujiu Chen

The first subproblem is a compression ratio optimization problem with a given resource allocation scheme, which is solved by a enumeration algorithm.

Semantic Communications With AI Tasks

no code implementations29 Sep 2021 Yang Yang, Caili Guo, Fangfang Liu, Chuanhong Liu, Lunan Sun, Qizheng Sun, Jiujiu Chen

A radical paradigm shift of wireless networks from ``connected things'' to ``connected intelligence'' undergoes, which coincides with the Shanno and Weaver's envisions: Communications will transform from the technical level to the semantic level.

Defect Detection

Optimization of User Selection and Bandwidth Allocation for Federated Learning in VLC/RF Systems

no code implementations5 Mar 2021 Chuanhong Liu, Caili Guo, Yang Yang, Mingzhe Chen, H. Vincent Poor, Shuguang Cui

Then, the problem of user selection and bandwidth allocation is studied for FL implemented over a hybrid VLC/RF system aiming to optimize the FL performance.

Federated Learning

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