摘要
提出了一种基于OFDM的认知无线电系统设计,并从3个方面阐述了OFDM技术在认知无线电中是如何实现频谱资源分配的,研究表明OFDM技术进一步提高了认知无线电系统的频谱利用率。
A cognitive OFDM-based radio system is proposed, and how the OFDM technology to achieve controlling the spectrum resource allocation in cognitive radio is discussed from three aspects. Research result shows that the OFDM technology greatly enhances the spectrum utilization of cognitive radio system.
出处
《数字通信》
2009年第2期35-38,共4页
Digital Communications and Networks
关键词
认知无线电
OFDM
频谱组合
频谱裁剪
cognitive radio
orthogonal frequency division multiplexing （OFDM）
spectrum portfolio
spectrum cutting
