摘要
引入散射体的随机分布模型,讨论了室内微微蜂窝4×4MIMO系统中接收端阵元间距对各子信道间衰落相关性及信道容量的影响。数值模拟结果说明在室内环境有丰富散射体存在且接收端放置天线的空间受限的情况下,阵元间距可做得很小(0.5λ),便可以得到较大的信道容量,此时相关系数仅为0.1左右,对信道容量的影响很小。
The effect of antenna spacing in receiver side on spatial correlation and channel capacity of a 4×4 MIMO system in indoor picocell is analyzed based on a random distribution of scatterers model.Simulation results show that in rich scattering indoor environment where the space to place antenna is limited,very small inter-element spacing (0.5λ) can get high channel capacity with correlation coefficient about 0.1.
出处
《电子设计工程》
2014年第6期103-105,共3页
Electronic Design Engineering
基金
中央高校基本科研业务费专项资金资助(13CX02028A)
关键词
MIMO
阵元间距
衰落相关
信道容量
MIMO
element spacing
spatial correlation
channel capacity