认知超宽带无线通信系统的结构模型
时间:11-24
来源:现代电信科技
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三、结语
CUWB无线通信系统是一种具有自适应频谱接入能力和灵活波形的新型智能超宽带系统。文章结合频谱感知和位置感知给出了CUWB系统简化的认知循环处理模型,并在此基础上利用分层与跨层设计相结合的方法提出了CUWB系统结构,重点探讨了CUWB频谱感知、CUWB动态自适应辐射掩模生成、动态频谱分配及CUWB自适应脉冲波形生成问题。总之,将CR技术和UWB相结合,不仅能够更好地解决UWB系统与其他系统间的频谱共享和系统共存问题,也为设计一种全新体系结构的高性能UWB系统提供了一种崭新的思路,而且进一步为最终实现完全智能化的CR技术奠定了基础,也为构建下一代自适应频谱接入系统提供了一种全新的选择。
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