室内6.05GHz和2.45GHz多输入多输出无线信道特性对比分析  

Characterization and comparison of indoor MIMO channel at 6.05GHz and 2.45GHz

作　　者：张继良 汪洋[1] 黄晓敏[1] 苗广冬[1] 张乃通[1,2] 

机构地区：[1]哈尔滨工业大学深圳研究生院,广东深圳518055 [2]哈尔滨工业大学电子与信息工程学院,黑龙江哈尔滨150001

出　　处：《电波科学学报》2013年第2期205-211,共7页Chinese Journal of Radio Science

基　　金：深圳市生物;互联网;新能源;新材料产业发展专项资金项目(JC201104210030A);深圳市科技计划项目(JC200903120174A);哈工大校科研创新基金项目(HIT.NSFIR.2010133);欧盟FP7项目(318992)

摘　　要：为了明确高频段室内多输入多输出(Multiple-Input Multiple-Output,MI-MO)无线信道与传统低频段的差异,采用基于矢量网络分析仪搭建的测量平台对典型室内环境下6.05GHz频段和2.45GHz频段MIMO无线信道进行测量和对比分析.基于300组高低频宽带MIMO信道测量数据,对比传输损耗、时延扩展、空间相关等大小尺度衰落特性.并阐明高频段无线空时信道新特性,分析新特性为系统设计带来的新问题.对比发现,6.05GHz高频段与传统的2.45GHz频段室内MIMO无线信道存在显著的差异.与2.45GHz相比,6.05GHz频段的传输损耗更大,时延扩展更严重,空间相关更低.在将低频段MIMO移动通信向高频段扩展时,这些差异要给予充分的重视.In order to identify the differences between multiple-input multiple-output（MIMO） wireless indoor channel at high frequency and that at traditional low frequency band,300 transfer functions of MIMO wireless channels at 6.05 GHz as well as 2.45 GHz were measured by a channel sounder based on vector network analyzer（VNA）in typical indoor environment respectively.Some large and small scalar MIMO channel characteristics including path loss,delay spread and spatial correlation were compared.As a result,new features of wireless space-time channel at high frequency were clarified.Compared with signal at low frequency band,signal at high frequency band has higher path loss,larger delay spread and lower spatial correlation.When design and assess high frequency wide band MIMO

关 键 词：频率 MIMO 信道特性 信道测量 

分 类 号：TN929.5[电子电信—通信与信息系统]