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首页> 外文会议>Annual Allerton Conference on Communication, Control, and Computing; 20040929-1001; Monticello,IL(US) >Suppression of Strong Interference in Broadband Communications via Filter Banks
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Suppression of Strong Interference in Broadband Communications via Filter Banks

机译：抑制通过滤波器组对宽带通信的强烈干扰

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摘要

This paper describes a novel time-domain method of effectively suppressing strong synchronous and asynchronous interference in broadband communications such as OFDM. The method requires knowledge only of the training symbols for the desired user and does not require any knowledge about the interfering signals. The method uses filter banks, which enable the design of computationally efficient time-domain Space-Time (ST) combiners that suppress the interference. The space-time combiners are applied to overlapping segments of the signal bandwidth where each segment is relatively narrowband, which makes the computation of the space-time filters practical. Simulation results show that, unlike existing methods, the filter-bank approach is very effective at suppressing strong interference (e.g., 41 Mbps was achieved for a C/I of -10 dB with a 19.0 MHz bandwidth).
机译：本文介绍了一种新颖的时域方法，可有效抑制宽带通信（如OFDM）中的强烈同步和异步干扰。该方法仅需要用于期望用户的训练符号的知识，而不需要关于干扰信号的任何知识。该方法使用滤波器组，该滤波器组能够设计出计算效率高的时域空时（ST）组合器，可以抑制干扰。将空时组合器应用于信号带宽的重叠段，其中每个段相对窄带，这使得空时滤波器的计算变得实用。仿真结果表明，与现有方法不同，滤波器组方法在抑制强干扰方面非常有效（例如，对于1dB的-10 dB的C / I，实现了41 Mbps的带宽）。

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