无线通信物理层安全技术研究与展望

Research and Prospect for Physical Layer Secure Technologyin Wireless Communication

无线通信在快速发展的同时,其安全性也日益受到人们的重视。物理层安全技术的出现,为无线通信系统信息安全开辟了新的途径,且在卫星通信系统中具有广阔的应用前景。对几种常见的物理层安全技术进行介绍,指出进一步的研究方向,并着重对其在卫星通信系统中的应用进行阐述与展望。最后,利用信道的衰落特性,结合安全编码,提出在移动卫星通信系统中实现通信信息安全的一种新思路。

With the rapid development of wireless communication, its security problems gradually attracts more and more attention meanwhile. Physical layer security technology, which has provided a new way for the security of information in wireless communication, has broad prospects for applications in satellite communication system. Several physical layer security methods are introduced, and the directions for further study have been pointed out. Moreover, the application as well as prospects of physical layer security technology in satellite communication are emphatically described. Finally, a new idea to achieve security using the fading characteristic of channel and secure coding in a mobile Satellite communication system has been put forward.