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20212025
most citedTowards Goal-Oriented Semantic Communications: New Metrics, Framework, and Open Challenges

38 citations · 87 across the 11 of their papers we have counts for

collaborators

11 papers

cs.IT2025

Joint Transmission and Control in a Goal-oriented NOMA Network

Kunpeng Liu, Shaohua Wu, Aimin Li +1

Goal-oriented communication shifts the focus from merely delivering timely information to maximizing decision-making effectiveness by prioritizing the transmission of high-value in…

cs.IT2025

Error Floor of ML-Decoded Spinal Codes in the Finite Blocklength Regime

Aimin Li, Shaohua Wu, Xiaomeng Chen +1

Spinal codes is a new family of capacity-achieving rateless codes that has been shown to achieve better rate performance compared to Raptor codes, Strider codes, and rateless Low-D…

cs.IT2024

Optimal Sampling for Uncertainty-of-Information Minimization in a Remote Monitoring System

Xiaomeng Chen, Aimin Li, Shaohua Wu

In this paper, we study a remote monitoring system where a receiver observes a remote binary Markov source and decides whether to sample and transmit the state through a randomly d…

cs.IT2024

Sampling to Achieve the Goal: An Age-aware Remote Markov Decision Process

Aimin Li, Shaohua Wu, Gary C. F. Lee +2

Age of Information (AoI) has been recognized as an important metric to measure the freshness of information. Central to this consensus is that minimizing AoI can enhance the freshn…

cs.IT2023★ 12 cited

Goal-oriented Tensor: Beyond Age of Information Towards Semantics-Empowered Goal-Oriented Communications

Aimin Li, Shaohua Wu, Sumei Sun +1

Optimizations premised on open-loop metrics such as Age of Information (AoI) indirectly enhance the system's decision-making utility. We therefore propose a novel closed-loop metri…

cs.IT2023

Goal-oriented Tensor: Beyond AoI Towards Semantics-Empowered Goal-oriented Communications

Aimin Li, Shaohua Wu, Sumei Sun

The intricate interplay of source dynamics, unreliable channels, and staleness of information has long been recognized as a significant impediment for the receiver to achieve accur…

cs.IT2023

Tight Upper Bounds on the Error Probability of Spinal Codes over Fading Channels

Xiaomeng Chen, Aimin Li, Shaohua Wu

Spinal codes, a family of rateless codes introduced in 2011, have been proved to achieve Shannon capacity over both the additive white Gaussian noise (AWGN) channel and the binary…

cs.IT2023

Deep Reinforcement Learning-Assisted Age-optimal Transmission Policy for HARQ-aided NOMA Networks

Kunpeng Liu, Aimin Li, Shaohua Wu

The recent interweaving of AI-6G technologies has sparked extensive research interest in further enhancing reliable and timely communications. \emph{Age of Information} (AoI), as a…

cs.IT2023★ 38 cited

Towards Goal-Oriented Semantic Communications: New Metrics, Framework, and Open Challenges

Aimin Li, Shaohua Wu, Siqi Meng +3

Since Shannon's pioneering masterpiece which established the prototype of modern information theory, the goal of communications has long been promising accurate message reconstruct…

cs.IT2022★ 36 cited

Age of Information with Hybrid-ARQ: A Unified Explicit Result

Aimin Li, Shaohua Wu, Jian Jiao +2

Delivering timely status updates in a timeliness-critical communication system is of paramount importance to assist accurate and efficient decision making. Therefore, the topic of…

cs.IT2021★ 1 cited

New Upper Bounds on the Error Probability under ML Decoding for Spinal Codes and the Joint Transmission-Decoding System Design

Aimin Li, Shaohua Wu, Jian Jiao +2

Spinal codes are a type of capacity-achieving rateless codes that have been proved to approach the Shannon capacity over the additive white Gaussian noise (AWGN) channel and the bi…