摘要
LTE的系统结构与传统通信系统有了巨大的变革。文中分析研究了LTE的关键技术——OFDM,通过分析MIMO技术及Alamouti空时编码方式后,对OFDM与MIMO技术做了仿真,最后将之结合给出MIMO-OFDM系统的仿真。还介绍了下行无线链路的基本情况,给出PDSCH无线信道仿真,并进行相关的分析。这些关键技术在很大程度上决定了LTE的系统性能。
There is a great change both in the structure of TD-LTE and the traditional communication system.In this paper,we have analysised the key technology of LTE—OFDM.Through analysising of MIMO technology and Alamouti space-time coding mode,the OFDM and MIMO technology is simulated,and finally the simulation of the MIMO-OFDM system is got.Then we have introduced the basic of the downlink wireless link of LTE,the PDSCH wireless channel simulation and the analyses of the technology were showed.These key technologies determine the system performance of LTE.
出处
《实验科学与技术》
2016年第1期55-57,77,共4页
Experiment Science and Technology
基金
国家自然科学基金(6146053)
云南省教育厅基金(2014Y021)
