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Cognitive radio with fast sensing technique using autocorrelation approach

机译：具有自相关方法的快速感知技术的认知无线电

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The dynamic spectrum allocation is important to improve spectrum efficiency usage of available radio spectrum. Cognitive radio has emerged as a solution to dynamic spectrum access, due to its adaptability and re-configurability. The main problem of cognitive radio is how the secondary users can detect the holes in the frequency band of the primary users. Spectrum sensing is the main feature of cognitive radio technology. Finding a more accurate and efficient spectrum sensing technique is the core of cognitive radio technology to develop dynamic resource management in future wireless networks. A spectrum sensing based on the auto correlation technique provides performance improvement at very low SNR over the energy detection technique. In this paper, we show the autocorrelation spectrum sensing features over energy detection spectrum sensing technique. Analytical and Simulation results are performed in a non-fading and a fading environment as well. The results show that the autocorrelation technique has enormous superiority in performance over that of the energy technique.
机译：动态频谱分配对于提高可用无线电频谱的频谱效率使用非常重要。认知无线电由于其适应性和可重新配置性而已成为动态频谱访问的解决方案。认知无线电的主要问题是次要用户如何检测主要用户频带中的空洞。频谱感测是认知无线电技术的主要特征。寻找更准确和有效的频谱感测技术是认知无线电技术的核心，以在未来的无线网络中发展动态资源管理。与能量检测技术相比，基于自动相关技术的频谱感测可在非常低的SNR情况下提高性能。在本文中，我们展示了自相关频谱感测特性优于能量检测频谱感测技术。分析和仿真结果也在非衰落和衰落环境中执行。结果表明，自相关技术在性能上比能量技术具有极大的优越性。

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