涡旋电波复用通信的信号传输特性  

Signal Transmission Characteristics of Vortex-Wave Multiplexing Communication

作　　者：杨紫婷 赵恒凯[1] YANG Ziting;ZHAO Hengkai(School of Communication and Information Engineering,Shanghai University,Shanghai 200444,China;Zhejiang Branch,China Telecom Corporation,Hangzhou 310001,China)

机构地区：[1]上海大学通信与信息工程学院,上海200444 [2]中国电信股份有限公司浙江分公司,浙江杭州310001

出　　处：《移动通信》2019年第4期63-69,共7页Mobile Communications

基　　金：国家自然科学基金项目(61271061);国家自然科学基金项目(61132003)

摘　　要：涡旋电波复用技术作为一种新兴技术,有望提高信道容量,解决资源短缺的问题。首先在理想信道下建立均匀圆形阵列(UCA)系统模型,推导得出收发UCA平行和非平行放置下的自由空间信道矩阵。然后分析涡旋电波复用通信系统的信道容量,模拟了收发阵列距离、阵列半径、阵元数目、倾斜角度等要素和信道容量之间的关系。最后,分析和仿真结果表明,涡旋电波复用通信系统容量随着收发阵列距离的增大而减小;增大收发UCA天线数量和阵列半径,有利于增大信道容量;涡旋电波复用通信系统要求收发端更精确的链路对齐。As an emerging technology,vortex-wave multiplexing is expected to improve channel capacity and deal with resource shortage.First,a unified circular array(UCA)system model is built in the ideal channel in the paper,and the free space channel matrix under parallel and non-parallel placement of UCA is deduced.Then,the channel capacity of vortex-wave multiplexing communication system is analyzed,and the relationship between UCA array spacing,array radius,number of array elements,relative rotation angle and channel capacity is numerically simulated.Finally,the analysis and simulation results show that in the vortex-wave multiplexing communication system,the system capacity decreases with the increase of the distance between receive and transmit arrays,the channel capacity increases with increase of number of UCA antennas and array radius,and the vortex-wave multiplexing communication system requires a more precise link alignment at the transceiver.

关 键 词：涡旋电波 复用 UCA 信道容量 

分 类 号：TN929.5[电子电信—通信与信息系统]