SOSTTC-OFDM系统设计与仿真  

Application of Super-orthogonal Space-time Trellis Codes in MIMO-OFDM System

作　　者：郭晶[1] 魏东兴[1] 

机构地区：[1]大连理工大学电子信息与电气工程学部,辽宁大连116024

出　　处：《通信技术》2010年第9期76-78,共3页Communications Technology

摘　　要：多输入多输出技术(MIMO)与正交频分复用技术(OFDM)相结合,可以提高无线通信系统在选择性衰落信道中的传输性能,满足新一代移动通信系统的要求。利用超正交空时网格编码(SOSTTC)结构,结合OFDM的优势,构建了一个SOSTTC-OFDM系统,进行了SOSTTC-OFDM系统的仿真实验。通过仿真证明了SOSTTC-OFDM系统具有很好的抗衰落性能,并且采用SOSTTC可以使系统获得更好的分集增益和编码增益。The combination of MIMO with OFDM could improve the capability of wireless communication systems in frequency-selective fading channels,and thus meet the requirement of new-generation mobile communication system.Based on the structure of （SOSTTC,super-orthogonal space-time trellis codes）,and in integration of OFDM superiority,a SOSTTC-OFDM system is constructed.The simulation with MATLAB on this system shows that SOSTTC-OFDM system has good characteristics in the fast fading channels,and with SOSTTT,could achieve much better diversity gain and coding gain.

关 键 词：MIMO 超正交空时网格编码 正交频分复用 SOSTTC-OFDM 

分 类 号：TN929.5[电子电信—通信与信息系统]