摘要
多输入多输出(MIMO)技术可以有效减弱无线传输多径衰落现象。建立矿井巷道环境下MIMO信道的三维GBDB模型,推导了该模型的空时相关函数,并对矿井下MIMO信道容量进行了数值仿真。结果表明,矿井巷道中的空间相关性对MIMO系统容量的影响很大,增加接收端天线数量、增大天线间距可以大幅度提高系统的信道容量。
Multiple-input multiple-output（MIMO）can effectively weaken the phenomenon of multipath fading in wireless transmission technology.3D-GBDB model of MIMO channel in mine tunnel was established.A space-time correlation function is derived from this model.MIMO channel capacity in mine is simulated.The results indicate that capacity of mine MIMO system is primarily depended on spatial correlation of mine roadway and increasing the number of receiver antennas or the antenna spacing can effectively improve channel capacity of MIMO system in mine tunnel.
出处
《电信科学》
北大核心
2011年第5期93-97,共5页
Telecommunications Science
基金
吉林省教育厅"十一五"科学技术研究项目(No.2008051)
关键词
信道
模型
MIMO
相关函数
容量
channel
model
MIMO
correlation function
capacity
