基于反相对称法的分集技术的理论研究

Classical communication theory is based on single user system and Additive White Gaussian Noise (AWGN). Shannon's formula is also derived on the base of these. However, nowadays, there is a great quantity of Non-AWGN exists in the wireless channel except AWGN. The test results show that the noise of adjacent channels has certain relativity and its entropy power is less or far less than its actual power, which makes the channel has potential information transmission rate..Phase-Inversion Symmetric Method (PISM) is an effective method to improve the utilization rate of channel by taking advantage of the noise's correlation in adjacent channels.Funded by NSFC (2009-2011), we studied on the theory of the noise's correlation and the principle of PISM, achieved some theory and application results, and invented the "Diversity receiving method based on Phase-Inversion Symmetric Method" (which achieved one China's patent)..This project aims to explore the application range and the practical value of PISM, conducts a study on the diversity technology based on PISM (PIS-DT), and improves the utilization rate of channel by using the correlation of noise in adjacent channels. Further, we will explore the potential channel information transmission rate and derive the calculation method of channel capacity under the condition of the Non-AWGN and put the research result in the existing wireless communication system and the 4G core technology as soon as possible.

经典通信理论是建立在单用户系统和加性高斯白噪声(AWGN)基础上的，香农公式也是在这一假设下导出的。然而目前无线信道中除了AWGN之外还存在大量非AWGN。测试结果表明，相邻信道噪声具有一定的相关性，其熵功率小于或远小于它的实际功率，从而使信道具有潜在的传信率。.反相对称法(PISM)是利用相邻信道噪声的相关性来提高信道利用率的有效方法。在2009年国家基金资助下，我们研究了噪声的相关性理论和PISM原理，取得了一些理论成果和应用成果，发明了"基于反相对称法的分集接收方法"，获得了一项中国专利。.本项目旨在进一步探索PISM的应用范围和实用价值，并对基于反相对称法的分集技术（PIS-DT）进行理论研究，利用相邻信道噪声的相关性，提高信道利用率，探索信道潜在的传信率，导出非AWGN条件下信道容量的计算方法，并将研究成果尽快应用于现有的无线通信系统及4G核心技术中。

经典通信理论是建立在单用户系统和加性高斯白噪声(AWGN)基础上的，香农公式也是在这一假设下导出的。然而目前无线信道中除了AWGN之外还存在大量非AWGN。测试结果表明，相邻信道噪声具有一定的相关性，其熵功率小于或远小于它的实际功率，从而使信道具有潜在的传信率。.反相对称法(PISM)是利用相邻信道噪声的相关性来提高信道利用率的有效方法。国家基金资助下，我们研究了噪声的相关性理论和PISM原理，取得了一些理论成果和应用成果，发明了“基于反相对称法的分集接收方法”，获得了一项中国专利。.本项目进一步探索了PISM的应用范围和实用价值，并对基于反相对称法的分集技术（PIS-DT）进行了理论研究，利用相邻信道噪声的相关性，提高了信道利用率，探索了信道潜在的传信率，导出了非AWGN条件下信道容量的计算方法，目前正在将研究成果应用于现有的无线通信系统及4G/5G技术中。