Doppler Effect Assisted Interference Mitigation for Wireless Communication
Doppler Effect Assisted Interference Mitigation for Wireless Communication
复制标题
无线通信的多普勒效应辅助干扰抑制
DOI：
10.1109/glocom.2018.8647239
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
T. Ratnarajah
中科院分区：
文献类型：
--
作者：
Dushyantha A. Basnayaka;H. Haas;T. Ratnarajah
多普勒效应是波传播中出现的一种基本现象，其中移动的观察者经历波的波长的膨胀或收缩。当发射机和接收机之间存在相对运动时，它也出现在射频（RF）无线通信中，并且被广泛认为是可靠无线通信的主要损害。本文提出了一种无线接收机，仔细利用多普勒效应的同信道干扰缓解。建议的系统-称为DAIM代表多普勒辅助干扰缓解-利用传播环境和网络拓扑结构，并包括一个接入点与旋转鼓形天线。旋转鼓形接收天线被设计成使干扰信号远离期望的信号频带。本文包括一个详细的系统模型和仿真研究。结果表明，在良好的衰落条件下，同频干扰即使不能消除，也能显著降低。因此，可以预期，通过扩展这里提出的基本系统，可以设计更复杂的无线系统和网络。
Doppler effect is a fundamental phenomenon that appears in wave propagation, where a moving observer experiences dilation or contraction of wavelength of a wave. It also appears in radio frequency (RF) wireless communication when there exists a relative movement between the transmitter and the receiver, and is widely considered as a major impairment for reliable wireless communication. The current paper proposes a wireless receiver that carefully exploits Doppler effect for cochannel interference mitigation. The proposed system-termed as DAIM to stand for Doppler Assisted Interference Mitigation-exploits the propagation environment and the network topology, and consists of an access point with a rotating drum antenna. The rotating drum receive antenna is designed in such a way that it shifts the interference signals away from the desired signal band. This paper includes a detailed system model and a simulation study. The results show that under favorable fading conditions, co-channel interference can be significantly reduced if not eliminated. Therefore, it is anticipated that more sophisticated wireless systems and networks can be designed by extending the basic system proposed herein.