毫米波相阵多径信道中的迭代波束成形方法  

Iterative beamforming method in the multi-path channel for the millimeter-wave phased array

作　　者：唐俊林 曾媛[3] 岳光荣 李少谦[2] TANG Junlin;ZENG Yuan;YUE Guangrong;LI Shaoqian(Southwest China Institute of Electronic Technology,Chengdu 610036,China;National Key Lab.of Science and Technology on Communications,Univ.of Electronic Science and Technology of China,Chengdu 611731,China;Shanghai Institute of Aerospace System Engineering,Shanghai 201108,China)

机构地区：[1]中国西南电子技术研究所,四川成都610036 [2]电子科技大学通信抗干扰技术国家级重点实验室,四川成都611731 [3]上海宇航系统工程研究所,上海201108

出　　处：《西安电子科技大学学报》2018年第4期143-148,共6页Journal of Xidian University

基　　金：国家自然科学基金资助项目(61401447);通信网信息传输与分发技术重点实验室开放课题资助项目(KX152600016/ITDU15007)

摘　　要：因毫米波阵列阵元数量较多,在多径信道下波束成形向量算法一般具有较高的复杂度.提出了一种多径信道下基于毫米波相阵的低复杂度迭代波束成形方法.该方法首先在通信中的一端通过级数方法获得适用于毫米波相阵的波束成形向量;然后通过收发双方的相互迭代从而获取另一端的波束成形向量,在相互迭代过程中算法得到收敛.仿真结果表明,该方法能够获得较高的信道容量,从而实现高速率传输,在迭代3次左右后算法得到收敛,减小了链路建立过程中的开销.The millimeter-wave array has many antenna elements and the beamforming algorithm in the frequency selective channel generally has a high complexity.In this paper,a low complexity iterative beamforming method in the frequency selective channel for the millimeter wave phased array is proposed.The method first obtains the beamforming vector which is adapted to the millimeter-wave phase array at one end of the communication,and then obtains the beamforming vector at the other end in the same way,and iterates in the communication transceiver side until the algorithm converges.Simulation results show that the beamforming vector obtained by this method can be of high channel capacity and achieves a higher transmission rate,and that it can converge after about three iterations,greatly reducing the overhead of link establishment.

关 键 词：毫米波 相阵 波束成形 多径 

分 类 号：TN92[电子电信—通信与信息系统]