摘要
现有无线通信网络未考虑空分复用问题，存在频谱利用率低的问题。基于对UCA方向图特性的分析，文章提出了基于UCA的无线通信热点地区空分复用方法。文中提出给出了UCA形成扇形波束的方法：利用UCA形成扇形波束组对认知网络的小俯角区域进行空分复用，而对小区的大俯角区域采用UCA全向方向图进行覆盖，从而将热点地区划分为一个采用单独信道的全向区域和多个空分复用的扇形区域。文中最后给出了一个8阵元UCA的热点地区空分复用实例。
The existing wireless communication network has not considered the problem of spatial multiplexing （SM）, there is the problem of lower spectrum efficiency. Based on the analysis of the UCA pattern properties, the SM method based on UCA for wireless communication hot spot is proposed. In this paper, the method of forming SM beams is proposed： the area of small depression angle is sectored by the SM beam group formed by UCA, and the area of big depression angle is covered by the UCA omni-directional pattern. According to the design, the wireless network can be divided into one omni-directional area which uses individual channels and several sectors of SDMA. Finally a design SM case of cognitive network is proposed based on 8 elements UCA.
出处
《科技成果管理与研究》
2011年第6期72-76,共5页
Management And Research On Scientific & Technological Achievements
基金
北京市自然科学基金项目（No.4102050）.
