摘要
研究了MIMO通信中极化分集在移动终端的应用,通过在传统极化分集模型中加入来波的角谱分布,求解了正交极化接收的空间衰落相关性,最后用Monte Carlo法仿真了信道遍历容量随平均到达角、角度扩展以及天线偏离角的变化,并在体积受限条件下比较了空间分集和极化分集的信道容量,理论上验证了在体积受限条件下应用极化分集能较大的提高MIMO信道的传输容量。
The behavior of polarization diversity in mobile terminal in MIMO communication is investigated. Formula of spatial correlation is derived for different shape of Power Azimuth Spectrum（PAS）. Monte Carlo method is applied to investigate the variation of capacity for MIMO systems with average AOA, Angular Spread and polarization angle. The simulation results between using spacing diversity and polarization diversity under spatially constrained conditions are compared and show that polarization diversity is a promising approach.
出处
《电波科学学报》
EI
CSCD
北大核心
2005年第4期491-494,共4页
Chinese Journal of Radio Science
基金
国家高科技发展计划基金资助项目(2002AA123032)
关键词
极化分集
MIMO信道
信道容量
空域相关性
双极化天线
功率角谱
polarization diversity, MIMO radio channel, channel capacity, spatial correlation, dual-polarized antennas, PAS
