无线紫外光通信中继与组网技术研究

Research on Wireless Ultraviolet Relay Communication and Networking Technology

无线紫外光散射通信能实现非直视（Non-Line-of-Sight,NLOS）全天候隐秘通信,＂日盲＂波段的紫外光具有背景噪声低的优点,但是大气强烈的散射特性导致无线紫外光传输距离有限,中继与组网技术是解决功率受限情况下扩大无线紫外光通信覆盖范围的有效手段。综述了国内外无线紫外通信中散射信道、中继通信、组网技术的研究现状,重点介绍了散射信道特性和中继组网的相关技术,并展望了未来无线紫外光通信中继与组网技术的应用场景。

Wireless ultraviolet communication can work in the mode of Non-Line-of-Sight（ NLOS） secretly in any time,the ＂ blind＂ band of ultraviolet light has the advantage of low background noise,but the strong atmospheric scattering feature causes the wireless ultraviolet transmission distance to be limited. Relaying and networking technologies are effective means to solve the problem of expanding the coverage of wireless UV communications under powerconstrained conditions. But the strong scattering of atmosphere results in limited transmission distance and range of ultraviolet light. Relay-assisted networking communication technology can solve this problem effectively. The domestic and foreign research status of scattering channels,network relays and application scenarios in UV communication were summarized,the related technologies of scattering channels and networking relays were introduced emphatically and the future application scenarios of UV relay and networking communication were expected.