摘要
OFDM与MIMO技术的结合使得无线通信系统在获得更低的误码率(BER)以及取得更高的数据速率两个方面有着明显的优势,但是系统的复杂度会有所增加,从而导致设备成本的增加。提出了一种天线选择的思想,在系统接收天线分支上选择合适的极化天线进行信号处理,从而在总功率不变的情况下降低系统误码率。仿真结果表明,该选择思想在降低系统误码率方面能达到既定的要求。
The combination of Multiple- Input Multiple- Output （MIMO） and Orthogonal Frequency Division Multiplexing （OFDM） technologies gives the wireless communications systems the advantages of lower hit error rate （BER） and higher data rate in frequency - selective fading environments. However, the main drawback of the MIMO - OFDM systems is the increase of complexity which leads to the cost increase. An antenna selection method was proposed to deal with a proper antenna at receive antenna branches to achieve lower BER performance. Numerical results show that the proposed method works effectively for the realistic channel and promises the decrease in computational complexity.
出处
《武汉理工大学学报（信息与管理工程版）》
CAS
2008年第6期858-860,共3页
Journal of Wuhan University of Technology：Information & Management Engineering
基金
国家自然科学基金资助项目(60773212)
