摘要
正交频分多址（OFDM：orthogonal frequency division multiplexing）技术由于其在多径环境下克服码阃干扰的固有特点，在移动通信中已得到广泛地应用。利用阵列天线上行链路信号到达角估计实时信息，计算OFDM系统下行链路阵列天线权重。将阵列天线应用于下行链路中，最后给出系统误码率性能的计算机仿真结果。
Orthogonal frequency division multiplexing（OFDM）, which has been widely used in the wire and wireless communication systems, is a promising technique in future wireless communications for its good performance in combating multipath fading. Based on the estimation of direction of arrival（DOA） of uplink signals, antenna arrays are employed in the downlink of OFMD systems. Computer simulation results show that the antenna array with the proposed algorithm has good performance in suppressing co-channel interference and can improve the receiving performance of the system.
作者
颜永庆
尤肖虎
YAN Yong-qing, YOU Xiao-hu （National Research Laboratory of Mobile Communication, Southeast University, Nanjing 210096, China）
出处
《江苏通信技术》
2007年第1期1-4,14,共5页
Jiangsu Communication Technology
关键词
自适应天线阵列
波束
正交频分多址
adaptive antenna array
beam forming
orthogonal frequency division multiplexing
