摘要
为了进一步改善目标用户的系统复杂度和训练效率,提出了一种改进的预补偿反向训练方法。发射方通过反向训练获得信道特性参数,利用该参数设计补偿系数,并使用该系数对发送信号进行预补偿;目标用户不需要发射方反馈信道信息,也无须调整接收权值。仿真结果表明,在不降低安全性和误比特率的情况下,该方法能够降低目标用户的系统复杂度,提高了训练效率。
To reduce the system complexity of the target user and improve the training efficiency,this paper proposed a backward training method with modified pre-compensation in 0 /1 space hopping technique. The transmitter obtained the channel information through the backward training and used the information to design the compensation coefficient. Then the transmitter used the coefficient to compensate the sending signals. The target users did not need to feed back the channel information and adjust the receiving weights. Simulation results show that on the condition of the same performance of the security and the bit error rate,the modified pre-compensation method can reduce the system complexity of the user and improve the efficiency of the training.
出处
《计算机应用研究》
CSCD
北大核心
2016年第5期1558-1561,共4页
Application Research of Computers
关键词
多天线跳空
物理层
无线通信
反向训练
改进的预补偿
multi-antenna space hopping
physical layer
wireless communication
backward training
modified pre-compensation
