基于N相位的60GHz无线通信波束赋形码本设计方案  

N Phases Based Beamforming Codebook Design Scheme for 60 GHz Wireless Communication

作　　者：邹卫霞[1] 崔志芳[1] 李斌[1] 赵心言[2] 

机构地区：[1]泛网无线通信教育部重点实验室(北京邮电大学),北京100876 [2]物联网工程学院(江南大学),无锡214122

出　　处：《北京邮电大学学报》2012年第3期42-46,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(61171104);中央高校基本科研业务费专项资金项目(G470270;G470415);北京邮电大学优秀博士创新研究基金项目(CX201122)

摘　　要：提出了一种支持60 GHz毫米波通信波束赋形机制的码本设计方法.为满足低功耗需求,码本设计仅进行相位移动而未作幅度调整,其中码本矩阵采用相位间隔相同、幅度为1的N个复数权值构建.仿真结果证实,与IEEE802.15.3c码本设计相比,高阶相位码本可获得相似的波束主瓣形状,同时波束将具有更低的旁瓣电平和更高的主瓣增益.该码本方案可在多用户环境下显著抑制空间干扰,提高网络累计信道容量,且对相位误差产生的波束偏移同样具有稳健性.A method for codebook design is proposed to support beamforming mechanism in a 60 GHz millimeter-wave wireless communication environment. The codebook is designed with only phase shifting but not any amplitude adjustment to meet the low power consumption requirement. N complex numbers of the same phase interval and amplitude of 1 are designed to generate a codebook matrix. Simulation shows that, compared with the codebook in IEEE802. 15.3c, a similar mainlobe patterns can be obtained in the proposed high-order codebook, while the sidelobe level appears lower, and the antenna gain at the direc- tion of main response axis is higher. Meanwhile the interference decreases obviously with an improved to- tal channel capacity in the practice environment, and the codebook is also robust to the beam shifting de- riving from phase errors.

关 键 词：60GHz无线通信 波束赋形 码本设计 

分 类 号：TN911.7[电子电信—通信与信息系统]