日期: 3月14日(週五)

時間: 11:00-12:00

地點: 劉炯朗館 206室

Speaker: 周泓甫博士後  (Dr. Hong-fu Chou, Interdisciplinary Centre for Security, Reliability and Trust (SnT), University of Luxembourg)

Title: Cognitive Semantic Augmentation LEO Satellite Networks for Earth Observation

Abstract: Earth observation (EO) systems are essential for mapping, catastrophe monitoring, and resource management, but they have trouble processing and sending large amounts of EO data efficiently, especially for specialized applications like agriculture and real-time disaster response. This paper presents a novel framework for semantic communication in EO satellite networks, aimed at enhancing data transmission efficiency and system performance through cognitive processing techniques. The proposed system leverages Discrete Task-Oriented Joint Source-Channel Coding (DT-JSCC) and Semantic Data Augmentation (SA) integrate cognitive semantic processing with inter-satellite links, enabling efficient analysis and transmission of multispectral imagery for improved object detection, pattern recognition, and real-time decision-making. Cognitive Semantic Augmentation (CSA) is introduced to enhance a system's capability to process and transmit semantic information, improving feature prioritization, consistency, and adaptation to changing communication and application needs. The end-to-end architecture is designed for next-generation satellite networks, such as those supporting 6G, demonstrating significant improvements in fewer communication rounds and better accuracy over federated learning.

Biography: Hong-Fu Chou received the M.S. and Ph.D. degree in communication engineering from National Taiwan University, Taipei, Taiwan in 2006 and 2013, respectively. He is a Postdoctoral Fellow with the School of Computer Science, The University of Auckland from 2016 to 2020 and currently with Interdisciplinary Centre for Security, Reliability and Trust (SnT), University of Luxembourg.