基于3GPP-SCM的智能天线系统信道模型仿真  

Simulation of channel model of smart antenna system based on 3GPP-SCM

作　　者：隋伟伟[1,2,3] 景小荣[1,2,3] 周围[1,2] 张永杰[3] 张祖凡[1,2] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]移动通信技术重庆市重点实验室重庆400065 [3]中国电子科技集团公司第54研究所通信网信息传输与分发技术重点实验室,河北石家庄050081

出　　处：《重庆邮电大学学报（自然科学版）》2011年第5期555-561,共7页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：中国电子科技集团公司第54研究所通信网信息传输与分发技术重点实验室开放课题(ITD-U10005);国家高技术研究发展计划(863计划)重点项目(2009AA011302);重庆市教委科研项目(KJ090513,KJ110526);重庆市科技攻关项目(CSTS,2010AC2143)~~

摘　　要：无线通信信道的空时频特性是决定智能天线系统性能的重要因素。基于3GPP-SCM模型,从理论上对智能天线系统的信道进行了建模,针对3种通信场景,利用数值仿真研究了其空时频相关特性,及对应的波数谱、多普勒功率谱、功率时延谱,对该模型的衰落深度进行了研究。实验结果表明,SCM信道模型能反映智能天线系统空间信道的每次实现的变化特性,且可用于链路级和系统级仿真。The channel characteristic of wireless communication channel in spatial, temporal and frequency domain is an important factor of determining the performance of smart antenna system. Based on the 3GPP-SCM model, the wireless communication channels are modeled in this paper, then under three communication scenarios, the channel characteristics in spatial, temporal and frequency domain are studied by numerical simulations, and the corresponding wave number spec- trum, Doppler power spectrum, power-delay spectrum and also fading depth of the model are studied. The results show that, SCM channel model can reflect the characteristic of changes in spatial channel of smart antenna system for each experi- ment and can be used for link-level and system-level simulation.

关 键 词：智能天线 3GPP—SCM 空时频特性 衰落深度 

分 类 号：TN911.7[电子电信—通信与信息系统] TN929.5[电子电信—信息与通信工程]