利用多载波干涉法减少先导污染干扰

M. El-Said, Anup Kumar, Adel Said Elmaghraby
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引用次数: 7

摘要

在CDMA系统中,移动站只要位于重叠基站覆盖的边缘区域,就具有与多个基站通信的能力。然而,不希望覆盖区域包含来自大量基站的导频信号。因为这会造成先导污染干扰并使移动电台的RAKE接收器过载。因此,移动站的RAKE接收机试图从时域的三个或更多主导导频信号中分离路径,以利用路径分集。在每个分集(路径/分支/手指)中,由于手指自身的信号和他人的信号,存在较大的干扰分量。我们展示了使用新型多载波芯片导频污染干扰的能力。我们已经进行了仿真研究,以验证所提出方法的正确性,并获得了非常有希望的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pilot pollution interference reduction using multi-carrier interferometry
Mobile stations, in CDMA systems, have the capability to communicate with multiple base stations whenever it is located in the fringe areas covered by overlapping base station. However, it is not desirable for an overlay area to contain pilot signals from a large number of base stations. As this would create pilot pollution interference and overload the mobile station's RAKE receiver. Therefore, the mobile station's RAKE receiver attempts to separate paths from three or more dominant pilot signals in the time domain to utilize path diversity. In each diversity (path/branch/finger), a large interference component exists due to the finger's own signal and other's signals. We demonstrated the power of using novel multi-carrier chip pilot pollution interference. Simulation studies have been carried out to verify the appropriateness of the proposed approach and we have obtained very promising results.
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