多天线系统的容量比较  

Capacity Comparison of Multi-element Antenna Systems

作　　者：李敏[1] 林敏[2] 龚铮权[2] 

机构地区：[1]解放军理工大学通信工程学院研究生3队,江苏南京210007 [2]总参谋部第63研究所,江苏南京210007

出　　处：《军事通信技术》2007年第1期35-38,共4页Journal of Military Communications Technology

摘　　要：使用了3种方法比较多天线系统的容量:空间分集、空间复用、波束形成。分别基于两种信道模型:散射模型和多径模型,计算了3种技术在平坦衰落信道条件下的容量。仿真结果表明,在电波辐射的角度范围或信道矩阵的秩不同的情况下,要获得最佳性能需要在3种技术之间切换。The capacity of multi-element antenna systems was investigated by employing three practical techniques of space diversity, spatial multiplexing and beamforming. Based on two types of the channel model： scattering model and multipath model, the capacity of these techniques over flat fading channels was computed. Simulation results show that, depending on the angular spread of electromagnetic wave or the rank of the channel, better performance can be obtained by switching the system between different techniques.

关 键 词：空间分集 空间复用 波束形成 

分 类 号：TN911.2[电子电信—通信与信息系统]