基于物理熵和信息熵的通信研究

项目名称： 基于物理熵和信息熵的通信研究

项目编号： No.61271203

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 焦秉立

作者单位： 北京大学

项目金额： 80万元

中文摘要： 科学研究中, 熵概念由热力学引入,它完美地解释了微观状态数与宏观现象的联系。随后的研究得到了热力学第二定律。至1929年，Szilard最终将热力学扩展到物理信息熵。此后发展的信息熵（Shannon,1942），成为描述信息量的方法,并转变为纯数学概念。 热力学熵和信息熵理论分别成为推导一个系统能量效率和信息传输效率的基础，这也就联系了热现象与通信现象的本质。本研究将无线通信系统存在的大量随机因素，归结于系统随机状态数，如：信息随机性、信道状态随机性、各种资源使用随机性，多天线辐射随机性等。在这些物理随机事件中，提取信息熵，以探索通信系统中物理熵与信息熵的联系，以熵理论为基础，研究频谱效率和能量效率的系统模型，据此，探索绿色通信的基本问题。

中文关键词： 熵；频谱效率；绿色通信；全双工；空域调制

英文摘要： The concept of entropy was introduced in science research for its perfect descriptions of state numbers and connected micro-worlds with thermodynamic phenomenon. This study led to the birth of the second law of thermodynamics. In 1929, Szilard extended the entropy into the fields of information theory. However, when Shannon created information theory, the entropy became pure mathematical number and optimum receiver is just in pure mathematic model. From above analysis, one can find that entropy of thermodynamic and that of information are the bases, from which the efficiency of energy and that of spectrum are derived, respectively, and the essential of the entropies lies in the facts that they describe the random phenomenon precisely. Thus, in this research proposal, we will study entropy characterization in both areas and explore the relationship between communication and thermodynamics for analyzing the random behaviors jointly. The goal of this research is to establish a joint model and find some results for the use of green communication.

英文关键词： Entropy；Spectrum Efficiency；Green Communication；Full Duplex；Spatial Modulation