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首页> 外文会议>2016 National Conference on Electrical, Electronics and Biomedical Engineering >Double threshold maximum to minimum Eigen-value spectrum sensing proposal and performance analysis
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Double threshold maximum to minimum Eigen-value spectrum sensing proposal and performance analysis

机译：双阈值最大到最小特征值频谱检测建议和性能分析

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摘要

Cognitive radio is the most effective technology to solve spectrum scarcity problem in contrast to high speed data transfer need. In cognitive radio systems, non-licensed users are permitted to use a licensed user spectum bandwidth whenever is not used. As soon as the license holder begin to use its spectrum, non-licensed user stops its communication and waits untill the licensed user finish its communication. The most important parameter in cognitive radio systems is reliable detecting the idle or busy status of the spectrum. There are many types of spectrum sensing methods but covariance based spectrum sensing, there is no need for any information about the environment and licensed user signal which eliminates the error could cause by these factors. In this paper the concept of double threshold is used for the best known covariance based spectrum sensing which is maximum to minimum Eigen-value based method and double threshold maximum to minimum Eigen-value method is introduced.
机译：与高速数据传输的需求相比，认知无线电是解决频谱短缺问题的最有效技术。在认知无线电系统中，未使用许可的用户只要不使用，就可以使用许可的用户频谱带宽。许可证持有人一旦开始使用其频谱，则非授权用户将停止其通信，并等待直至授权用户完成其通信。认知无线电系统中最重要的参数是可靠地检测频谱的空闲或繁忙状态。频谱感测方法的类型很多，但是基于协方差的频谱感测，不需要任何有关环境和许可用户信号的信息，从而消除了可能由这些因素引起的错误。在本文中，将双阈值的概念用于最广为人知的基于协方差的频谱感知，该方法最大基于最小特征值的方法，并介绍了双阈值最大至最小特征值的方法。

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