论文标题
一种用于通过两个正交方向加倍传输效率的准多普勒方法
A Quasi-Doppler Method for Doubling Transmission Efficiency Through Two Orthogonal Directions
论文作者
论文摘要
受波传播的多普勒效应各向异性的启发，我们提出了一种新方法，以利用一个信息符号，为两个几何正交方向的两个用户服务。特别是在宽带无线通信中，我们将多个天线与建议的信号开关方法模拟移动的发射源并产生频移（称为准多普勒效应），该效应将转换为离散相调制。此外，使用此离散调制阶段可以在在不同方向上实现两个不同阶段时调整一个传输符号的相位。调制机制是通过理论推导来解释的，分析了具有小几何偏差的十字路口的应用范围内的性能鲁棒性。与使用常规符号的使用相反，这种方法可以使我们的模拟结果确认的传输效率增加一倍。
Inspired by the anisotropy of Doppler effect with wave propagations, we propose a new method to leverage one information symbol serving two users located in two geometrically orthogonal directions. Specifically in broadband wireless communication, we use multiple antennas with the proposed signal switching method to emulate a moving emission source and yield the frequency shift, referred to as Quasi Doppler effect, which is converted to the discrete phase modulation. Further, using this discrete modulated phase can adjust the phase of one transmit symbol in achieving two different phases in different directions. The modulation mechanism is explained through theoretical derivations with the analysis on the performance robustness in the application-scenarios of crossroads having small geometric deviations. In contrast to the use of conventional symbols, this approach can double the transmission efficiency which is confirmed by our simulations results.
