CAJ | 학술논문

深入研究了存在天线互耦和空间相关时,天线匹配网络对莱斯信道下多输入多输出MIMO系统性能的影响,建立了包含相关莱斯信道、天线互耦和匹配网络的(MIMO)系统模型.通过仿真分析了匹配阻抗、天线互耦、空间相关性以及信道衰落环境对包络相关性和信道容量的影响.实验结果表明:莱斯信道下匹配阻抗对MIMO系统的影响与瑞利信道情况下有所不同,适当地选择天线匹配阻抗可以改善MIMO系统的性能.
심입연구료존재천선호우화공간상관시,천선필배망락대래사신도하다수입다수출MIMO계통성능적영향,건립료포함상관래사신도、천선호우화필배망락적(MIMO)계통모형.통과방진분석료필배조항、천선호우、공간상관성이급신도쇠락배경대포락상관성화신도용량적영향.실험결과표명:래사신도하필배조항대MIMO계통적영향여서리신도정황하유소불동,괄당지선택천선필배조항가이개선MIMO계통적성능.
The effect of antenna matching network on MIMO system performance in Rician fading channels in the presence of antenna mutual coupling and spatial correlation is investigated.A MIMO system model which includes correlated Rician fading channels,antenna mutual coupling and matching network is built.Effect of matching impedance,mutual coupling,spatial correlation and channel fading environment on envelope correlation and channel capacity is studied by simulation.The results show that the effect of matching impedance on MIMO system in Rician fading channels is different from that in Rayleigh fading channels.MIMO system performance can be improved by properly selecting antenna matching impedance.