摘要
将MIMO(多输入多输出 )信道建立为Nakagami衰落信道 ,进一步推导单元天线接收多径衰落信号的空域相关系数的通用解析式 ,并在均匀分布、余弦分布、高斯分布和拉式分布的来波功率角谱下分别进一步评估接收信号的空域相关性 ,分析各参数对相关系数的影响 ,比较各种来波功率角谱下相关性的数值结果 。
The analytical and general expressions for the spatial correlation of fading signals at the receiver antenna elements in MIMO channels with Nakagami fading and the correlation with uniform, cosine, Gaussian and Laplacian power azimuth spectrum (PAS) distributions are derived respectively in this paper. The effect of various parameters on the spatial correlation is explored in detail, which is shown by numerical results. This is the basis of precisely analyzing the performance of MIMO system and designing the corresponding antenna arrays.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2004年第12期1949-1953,共5页
Acta Electronica Sinica
基金
国家 8 63计划 (No .2 0 0 2AA1 2 30 32 )
关键词
MIMO信道
空域相关性
多径衰落
功率角谱
Antenna arrays
Evaluation
Fading (radio)
Numerical analysis
Receiving antennas
Spectrum analysis
