屏蔽室收发天线分离全双工自干扰信道测量与建模

针对屏蔽室环境收发分离全双工自干扰信道特性,该文采用基于网络分析仪的信道测量平台,对屏蔽室环境下2.6 GHz收发天线分离全双工自干扰信道进行研究,得到了路径传输损耗,均方根时延扩展与莱斯K因子的统计模型。结果表明:自干扰信道路径损耗随距离增加呈对数衰减;均方根时延扩展服从对数正态分布,并随着天线间距的增加而增加;莱斯K因子服从正态分布,并随着天线间距的增加逐渐降低,莱斯分布的特征逐渐降低。

Measurement and Modeling of Co-Time Co-Frequency Full-Duplex Self-Interference Channel with Separate TX and RX Antennas in Shielded Room Environment

There are many multipaths in co-time co-frequency full-duplex (CCFD) self-interference channels in shielded room environment, so the study of self-interference channels has an important reference value. Measurements and characterizations are rarely involved at self-interference channels of CCFD in the shield room environment. In this paper, the measurements and analyses are performed at 2.6 GHz under typical indoor environment with channel sounder based on vector network analyzer. By analyzing the measurement data, the empirical channel characteristics such as path loss, the RMS delay spread and the Ricean K-factor have been extracted. Results show that the path loss is the logarithmic decrement with the increase of distance between Tx and Rx antennas. The statistics of root mean square (RMS) delay follows the lognormal distribution. The RMS delay increases with increasing the distance between Tx and Rx antennas. The statistics of K factor follows the normal distribution. The K-factor decreases with increasing the distance between Tx and Rx antenna.