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Reduction of Microwave Oven Interference in DS-SS WLAN Systems by Using Adaptive Filters

机译:通过使用自适应滤波器减少DS-SS WLAN系统中的微波炉干扰

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摘要

Since WLAN (wireless LAN) systems share the 2.4-GHz frequency band with microwave ovens, interference caused by radiated oven noise is a serious problem in practical WLAN application. To mitigate the oven noise interference in DS-SS (direct-sequence spread spectrum) WLAN systems, the use of adaptive filters is proposed. This method is based on the fact that oven noise behaves like CW (continuous wave) interference within a short duration. In contrast to previous reduction techniques for oven noise, this method can be implemented without changing any specifications of current WLAN systems. The results of numerical and experimental analyses clearly demonstrate the effectiveness of adaptive filters for improving the bit error rates of WLAN links subject to oven noise interference.
机译:由于WLAN(无线LAN)系统与微波炉共享2.4 GHz频段,因此在实际的WLAN应用中,由辐射的烤箱噪声引起的干扰是一个严重的问题。为了减轻DS-SS(直接序列扩频)WLAN系统中的烤箱噪声干扰,建议使用自适应滤波器。该方法基于这样的事实,即烤箱噪声在短时间内表现得像CW(连续波)干扰。与以前的减少烤箱噪音的技术相比,该方法无需更改当前WLAN系统的任何规格即可实现。数值和实验分析的结果清楚地证明了自适应滤波器对于提高遭受烤箱噪声干扰的WLAN链路的误码率的有效性。

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