可扩展分层次编译码的语义通信系统  

Extensible hierarchical codec semantic communication system

作　　者：张聿远 赵海涛[1] 魏急波[1] 曹阔 张亦弛 罗鹏 刘月玲 梅锴 ZHANG Yuyuan;ZHAO Haitao;WEI Jibo;CAO Kuo;ZHANG Yichi;LUO Peng;LIU Yueling;MEI Kai(College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学电子科学学院,湖南长沙410073

出　　处：《通信学报》2023年第8期49-60,共12页Journal on Communications

基　　金：国家自然科学基金资助项目(No.62201584,No.61931020,No.U19B2024)。

摘　　要：针对目前文本语义通信大部分研究主要依靠仿真系统进行理论验证的问题,利用分层次编译码架构在语义层次和语法层次上的分离性,提出了一种可扩展分层次的语义通信系统。该系统通过语义和语法层次相分离的模式有效兼容香农信息框架下的可靠通信技术,实现语义通信与传统通信的嵌套结合。进一步,基于软件无线电平台搭建了一个通用可扩展的验证系统,对所提语义通信系统架构进行实用化验证。该验证系统以语义通信软件平台作为硬件驱动和算法调用的驱动核心,集成了信号产生、信息发送、接收端数据采集、译码和评估的全过程,并且能够面向语义和语法层次进一步扩展。最后,基于该验证系统进行了文本语义通信的测试,验证了其相较于传统通信方式具有更高的有效性和可靠性。Aiming at the problem that most current researches on text semantic communication mainly rely on simulation system for theoretical verification,an extensible hierarchical semantic communication system was proposed by taking advantage of the separation of hierarchical encoding and decoding architecture in semantic level and grammatical level.The system was compatible with the reliable communication technology under the framework of Shannon information through the mode of semantic and syntactic separation,and realized the nested combination of semantic communication and traditional communication.Furthermore,a universal and extensible verification system was built based on the software radio platform to verify the proposed semantic communication system architecture.The verification system took semantic communication software platform as the driving core of hardware drive and algorithm call,integrated the whole process of signal generation,information transmission,data acquisition,decoding and evaluation at the receiving end,and could be further extended for semantic and syntactic level.Finally,the text semantic communication was tested based on this verification system,which verified that it had higher validity and reliability than the traditional communication mode.

关 键 词：语义通信 分层次编译码 语义层次 语法层次 验证系统 

分 类 号：TN914[电子电信—通信与信息系统]