一种基于脆性熵函数的通信系统脆性研究

Analysis of communication system brittleness based on brittleness entropy function

针对开放的通信系统进行研究,提出了脆性是通信系统的基本属性,且给出了通信系统的脆性描述.根据信息论的信息率失真和信息传输理论可知信息率失真函数以及热力学中熵增大定理有着巧妙联系,由此可以把信息率失真函数写成熵差的形式.在此基础上,在通信系统中建立了脆性熵函数的概念,它反映了信息在通信前后脆性变化情况,同时对导致通信系统崩溃起着重要作用.最后,以离散信源为例对通信系统脆性进行定量分析,分析结果表明该方法不仅为通信系统脆性分析提供有效的、可行性的分析方法,而且为进一步研究通信系统的脆性评价奠定了理论基础.

This paper focuses on communication systems, defining brittleness, a basic property of open communications. From the information distortion ratio and information transmission theory, it is known that there is a definite relationship between the information distortion ratio function and the entropy production theorem of thermodynamics. Thus the information distortion ratio function can be written as a form of entropy change. Based on this, the concept of a brittleness entropy function in a communication system is defined. It not only reflects changes in information brittleness before and after communications, but also explains important aspects in the collapse of a communication system. Finally, quantitative analysis is performed on brittleness using an example of a discrete information source. The results indicate that this function is a feasible and effective tool for brittleness analysis and lays a theoretical basis for future research on evaluating the brittleness of communication systems.