arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.07828cs.ITcs.NImath.IT
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最快检测频谱感知的性能研究:累积和的情况

On the Performance of Quickest Detection Spectrum Sensing: The Case of Cumulative Sum

Ahmed Badawy, Ahmed El Shafie, Tamer Khattab

摘要:

快速变化检测(QCD)是许多应用中的基本问题。给定在某个翻转点周围呈现两种不同分布的测量序列,目标是尽可能快地检测翻转点周围分布的变化。QCD问题出现在许多实际应用中,例如,质量控制、电力系统线路中断检测、频谱重用以及资源分配和调度。在本文中,我们专注于频谱感知作为我们的应用程序,因为它是一个关键的过程,正确的功能的认知无线电网络。基于累积和(Cumulative sum,Cumulative sum),推导了基于Cumulative sum的频谱感知的检测概率和虚警概率。我们使用数值模拟证明了我们推导的正确性。

英文摘要:

Quickest change detection (QCD) is a fundamental problem in many applications. Given a sequence of measurements that exhibits two different distributions around a certain flipping point, the goal is to detect the change in distribution around the flipping point as quickly as possible. The QCD problem appears in many practical applications, e.g., quality control, power system line outage detection, spectrum reuse, and resource allocation and scheduling. In this paper, we focus on spectrum sensing as our application since it is a critical process for proper functionality of cognitive radio networks. Relying on the cumulative sum (CUSUM), we derive the probability of detection and the probability of false alarm of CUSUM based spectrum sensing. We show the correctness of our derivations using numerical simulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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