Abstract
摘要: 该文分析了利用噪声功率估计值进行能量检测时判决门限的计算问题，推导出检测性能的Q函数表达式。为达到期望的检测性能，判决门限不能直接由噪声功率估计值替换已知的噪声功率得到，必须进行修正。文中给出了修正判决门限的闭合表达式，极大地简化了检测性能分析和判决门限计算。仿真结果表明，在估计样点数为20时，对比原判决门限，基于修正判决门限的误警概率减少了15%，有效地提高了认知无线电网络的吞吐量。 关键词: 认知无线电 / 频谱感知 / 能量检测 / 噪声功率估计
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Electronics & Information Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
