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在多个无线个域网(wireless personal area network,WPAN)接入家域网(home area network,HAN)场景中,应用基于循环平稳理论的频移滤波器实现2.4GHz频段的抗干扰.描述了多个无线个域网接入家域网的总体结构,讨论了应用于接入点的媒体访问控制(medium access control,MAC)级协作解决方案以保证多个无线通信协议共存于一个无线个域网内,给出了自适应频移滤波器的框图,提出了在多个无线个域网接入家域网场景中频移滤波器的抗干扰模型,分析了频移滤波器最小均方误差随数据积累点数变化的收敛性能.仿真结果表明应用频移滤波器能够从谱重叠干扰中有效地提取有用信号,从而论证了频移滤波器优良的抗干扰性能.此外,仿真还论证了由理论分析得出的频移滤波器最小均方误差的收敛特性.
Anti-interference in the 2.4 GHz band is implemented using a frequency-shift filter based on a cyclostationary theory in a case where a plurality of wireless personal area networks (WPANs) access a home area network (HAN) The structure of multiple wireless personal area networks accessing the home area network is discussed, and a medium access control (MAC) level cooperation solution applied to the access points is discussed to ensure that a plurality of wireless communication protocols coexist in a wireless personal area In this paper, the block diagram of adaptive frequency-shift filter is given, and the anti-jamming model of frequency-shift filter is proposed in the case of multiple wireless personal area networks accessing home-area network. The minimum mean square error of frequency-shift filter The simulation results show that the frequency-shift filter can effectively extract the useful signal from the spectral overlap interference, thus demonstrating the excellent anti-jamming performance of the frequency-shift filter.In addition, the simulation also demonstrates the theoretical analysis Convergence characteristics of the minimum mean square error of the frequency shift filter.