基于差分空时编码的OFDM系统的性能仿真  

Performance Simulation of OFDM Systems Based on DSTBC

作　　者：陈剑[1] 覃焕昌[2] 

机构地区：[1]百色市财政局信息中心,广西百色533000 [2]百色学院物理与电信工程系,广西百色533000

出　　处：《电脑与电信》2007年第11期34-36,共3页Computer & Telecommunication

摘　　要：结合差分空时分组码(DSTBC)技术,对MIMO-OFDM系统中的性能进行了研究。在IEEE 802.16d室内多径环境下,对使用2根发射天线和1根接收天线的MIMO-OFDM系统进行了深入研究。在发射端和接收端,差分空时分组编码和解码技术应用在MIMO-OFDM系统中。为了比较,对使用空时分组编码(STBC)技术MIMO-OFDM通信系统的性能也进行了讨论。In this paper, the performance of the MIMO-OFDM systems using DSTBC （Differential Space Time Block Code） technique is analyzed. Based on a multi-path channel model defined by IEEE 802.16d indoor channel standard, an MIMO-OFDM system with two transmit antennas and one receive antennas is investigated, In both the transmitter and the receiver, the DSTBC technique is considered. At the same time, an MIMO-OFDM system with two transmit antennas and two receive antennas is discussed. Finally, the performance of the system with STBC （Differential Space Time Block Code）is also examined.

关 键 词：差分空时分组编码 空时分组编码 MIMO—OFDM 

分 类 号：TN929.5[电子电信—通信与信息系统]