Integrated Sensing and Communication in Future Cell-Free Networks
未来无蜂窝网络中的通感一体化技术研究
Jiangwei Liao, Dr. Huilin Zhu
School of Engineering, University of Kent
Abstract: In this talk, we will first introduce the principles of Integrated Sensing and Communication (ISAC) systems and their potential applications in future sixth-generation (6G) wireless networks, particularly within a cell-free architecture. We will then present our recent research focused on developing a more accurate, cost-effective, and high-frame-efficiency cell-free ISAC system that utilizes pre-designed orthogonal downlink (DL) pilot sequences.
The improvements in both channel estimation and localization are demonstrate comparing to with the traditional solutions . Additionally, this research explores the impact of the some important parameters, such as DL/UL pilot ratio and pilot proportion relative to the overall signal frame length, are discussed, which leads to a potential signal design for the future cell-free ISAC systems.
摘要：报告将首先介绍集成传感与通信（ISAC）系统的基本原理及其在未来第六代（6G）无线网络中的潜在应用，特别是在无蜂窝网络架构中的前景。随后，将重点介绍团队最新研究成果--通过预设计正交下行导频序列，开发具有更高精度、更低成本及更高帧效的无蜂窝ISAC系统。
相较于传统方案，新系统在信道估计与目标定位性能上均展现出显著提升。研究还探讨了若干关键参数的影响（如下行/上行导频比例、导频占信号帧总长度的比重等），这些发现为未来无蜂窝ISAC系统的信号设计提供了重要参考。
Speaker: Jiangwei Liao is a Ph.D. candidate in Electronic Engineering at the University of Kent, working on the Integrated Sensing and Communication (ISAC) implementation in system design and resource allocation under various complex channel environment.
His initial work focused on enhancing the dual-functionalities of ISAC in mmWave cell-free networks through the insertion of additional downlink pilot sequences. He is currently serving as a research assistant in University of Hertfordshire for the EU-funded project TERRAMETA (WP5), where he is investing the ISAC-RIS system performance in terahertz band.
个人简介：Jiangwei Liao是肯特大学电子工程专业的博士研究生，致力于复杂信道环境下的通感一体化（ISAC）系统设计与资源分配研究。
其早期工作通过插入额外下行导频序列，提升了毫米波无蜂窝网络中ISAC的双功能性能。现作为赫特福德大学欧盟资助项目TERRAMETA（工作组5）的研究助理，专注于太赫兹频段ISAC-RIS系统的性能优化研究。
