摘要
多天线运用到802.16a系统中可以提高系统的性能。本文首先给出MIMO—OFDM系统的基本构成,然后介绍了适合MIMO—OFDM信道估计的帧头结构,并对LS,MMSE算法进行了比较。以两发两收(2Tx-2Rx)系统为例,对系统进行了仿真,并对仿真结果进行了比较和分析。
Multi- antenna applied in 802.16a system can improve the system＇s performance, In this paper, we present the structure of the MIMO - OFDM system first, and then, present the preamble structure which is suitable for MIMO - OFDM system. We also compare the LS algorithm and the MMSE algorithm, Finally, we analysis the simulation results in 2Tx/2Rx system.
出处
《西安邮电学院学报》
2005年第1期19-23,共5页
Journal of Xi'an Institute of Posts and Telecommunications
