本文主要研究对角分层空时编码在无线光通信中的应用,并对其误码率特性进行了分析。仿真结果表明,随着收发天线数的增加,系统的信道容量几乎成倍的增长,同时误码性能有明显的改善;说明该系统具有对角分层空时编码原有的信道容量和良好的误码率性能,能够很好的保证传输质量,同时有望抑制大气的闪烁效应。
This paper mainly study the use of D-BLAST in the FSO,and analyze it's BER characteristic.The simulation result show that with the increase of the number of sending and receiving antenna system,the channel capacity almost doubling of growth at the same time,the performance of BER has improved remarkably.Indicate that the system has the D-BLAST of the original channel capacity and good BER,it can ensure the system's quality very well,and the scintillation effect caused by atmosphere turbulence is effectively overcome.