随着移动通信技术的发展演进,6G(6th-Generation)网络作为新一代智能化数字信息基础设施,将不再仅聚焦信号的传输和复现,更需要基于电磁传播过程实现对周围环境的高效感知和理解,从而获取信道语义知识,协助智能通信体的预测、决策、波...随着移动通信技术的发展演进,6G(6th-Generation)网络作为新一代智能化数字信息基础设施,将不再仅聚焦信号的传输和复现,更需要基于电磁传播过程实现对周围环境的高效感知和理解,从而获取信道语义知识,协助智能通信体的预测、决策、波束成形等.因此,相较于传统信道而言,赋予无线信道模型对物理环境的语义理解、重构、表达能力,已成为智能无线信道模型的重要特征.本文提出了一种无线信道语义的分析和建模方法,将信道语义定义为状态语义、行为语义和事件语义3种层级,分别对应信道瞬态多径、信道时变轨迹和信道拓扑结构.此外,基于车载通感一体化(Integrated Sensing And Communication,ISAC)信道测量系统,开展了28 GHz下面向信道语义表征的无线信道测量,基于实测数据对信道语义进行解构、标识、建模,重点分析了3种不同语义下的信道多径分布特性,完成了语义导向的信道生成,结果表明信道语义模型能够在生成较准确信道的同时,表达更丰富的语义信息.本文工作是在语义层面上探索智能信道建模的新方法,通过深入挖掘无线信道的内在语义特征,促进通信系统在理解和认知环境方面的能力,从而提高通信效率和质量.展开更多
There are two new trends in today's computer technology that are attracting more and more attention. Oneis multimedia service,especially the video service. The other is mobile wireless computing. The former can be...There are two new trends in today's computer technology that are attracting more and more attention. Oneis multimedia service,especially the video service. The other is mobile wireless computing. The former can be implemented efficiently on the traditional wired network,such as the accession of multimedia information,real-time broad-cast. But due to the limitation of the wireless environment,the latter hasn't been able to support the video transport efficiently. Obviously,the combination of these two technologies,video service over wireless network,may be a killer application and in turn advances both of them. This paper summarizes the challenges of this field and introduces some possible solutions.展开更多
文摘随着移动通信技术的发展演进,6G(6th-Generation)网络作为新一代智能化数字信息基础设施,将不再仅聚焦信号的传输和复现,更需要基于电磁传播过程实现对周围环境的高效感知和理解,从而获取信道语义知识,协助智能通信体的预测、决策、波束成形等.因此,相较于传统信道而言,赋予无线信道模型对物理环境的语义理解、重构、表达能力,已成为智能无线信道模型的重要特征.本文提出了一种无线信道语义的分析和建模方法,将信道语义定义为状态语义、行为语义和事件语义3种层级,分别对应信道瞬态多径、信道时变轨迹和信道拓扑结构.此外,基于车载通感一体化(Integrated Sensing And Communication,ISAC)信道测量系统,开展了28 GHz下面向信道语义表征的无线信道测量,基于实测数据对信道语义进行解构、标识、建模,重点分析了3种不同语义下的信道多径分布特性,完成了语义导向的信道生成,结果表明信道语义模型能够在生成较准确信道的同时,表达更丰富的语义信息.本文工作是在语义层面上探索智能信道建模的新方法,通过深入挖掘无线信道的内在语义特征,促进通信系统在理解和认知环境方面的能力,从而提高通信效率和质量.
文摘There are two new trends in today's computer technology that are attracting more and more attention. Oneis multimedia service,especially the video service. The other is mobile wireless computing. The former can be implemented efficiently on the traditional wired network,such as the accession of multimedia information,real-time broad-cast. But due to the limitation of the wireless environment,the latter hasn't been able to support the video transport efficiently. Obviously,the combination of these two technologies,video service over wireless network,may be a killer application and in turn advances both of them. This paper summarizes the challenges of this field and introduces some possible solutions.
