基于广义空间调制的车联网无线通信关键技术研究

With the continuous improvement of the people's living standards, the amount of car ownership is increasing rapidly, and the demand for vehicle to everything (V2X) is also increasing. As a result, high speed and secure V2X under limited spectrum and energy resources have become a hot research topic. Because of its good spectrum efficiency and energy efficiency, spatial modulation is in line with the trend of green communication, which has attracted wide attention of researchers. Therefore, the research on V2X based on spatial modulation is of great scientific significance. However, it is shown that the system still has such deficiencies as the need to strengthen the transmission reliability, the security and the efficiency need to be improved. In order to solve these three problems, it is necessary to further study this system. The main contents of this project include: reveal the geometric mathematical model of V2X under fast varying channel, establish antenna selection scheme based on Euclidean geometrics to improve reliability; By using the characteristic of the fast fading in V2X channel, realize the secure communication based on physical layer security; research on spatial modulation scheme based on residue number system to improve the spectral efficiency of V2X. The expected research results have important theoretical significance and practical reference value for improving the spectrum efficiency, energy efficiency of V2X, and solving the safety transmission problem.

随着我国人民汽车保有量的飞速增长，对于车联网通信的需求也在不断提高。于是，在有限的频谱和能量资源下实现高速且安全的车联网通信成为当下研究的一个热门课题。空间调制因其具有良好的频谱效率和能量效率，符合绿色通信的趋势，受到了研究者的广泛关注。因此，基于空间调制的车联网通信方面的研究具有重要的科学意义。然而研究表明，该系统尚存在可靠性、有效性、安全性等方面的不足。针对这三方面问题，有必要对该通信系统进一步展开研究。本项目主要研究内容包括：建立基于欧氏空间的天线选择与时空编码方案，提高车联网信息传输可靠性；研究车联网通信中基于余数系统的空间调制方案，以提高车联网通信的频谱效率；利用车联网通信中信道状态快变的特性，基于物理层信息安全机制提高车联网通信的安全性。本项目的预期研究结果对于提高车联网通信的可靠传输、频谱效率以及解决车联网通信的安全性问题，具有重要的理论指导意义及实用参考价值。

随着我国人民汽车保有量的飞速增长，对于车联网通信的需求也在不断提高。于是，在有限的频谱和能量资源下实现高速且安全的车联网通信成为当下研究的一个热门课题。空间调制因其具有良好的频谱效率和能量效率，符合绿色通信的趋势，受到了研究者的广泛关注。因此，基于空间调制的车联网通信方面的研究具有重要的科学意义。然而研究表明，该系统尚存在可靠性、有效性、安全性等方面的不足。针对这三方面问题，我们对该通信系统进一步展开研究。本项目主要研究内容包括：建立基于欧氏空间的天线选择与时空编码方案，提高车联网信息传输可靠性；研究广义空间调制中联合数据映射方案空间调制方案，以提高无线通信的频谱效率；利用广义空间调制中时域和码域融合的空间调制方案，进一步无线通信的频谱效率。本项目的预期研究结果对于提高网络通信的可靠传输、能量效率以及解决无线通信的频谱效率问题，具有重要的理论指导意义及实用参考价值。