arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1306.2399cs.ITmath.IT
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共存大规模传感器网络中的分布式检测

Distributed Detection in Coexisting Large-scale Sensor Networks

Junghoon Lee, Cihan Tepedelenlioglu

摘要:

本文考虑共存的无线传感器网络(WSNs)中的信号检测。我们的特点是聚合信号和干扰的泊松随机场的节点,并定义了一个二元假设检验问题,以检测信号中存在的干扰。对于测试问题,我们引入了最大似然(ML)检测器和更简单的替代品。提出的混合分数低阶矩检测器具有计算简单、性能接近最大似然的特点,并且对系统参数的估计误差具有鲁棒性。我们还推导出所提出的简单检测器的渐近理论性能。蒙特卡洛模拟是用来补充我们的分析结果,并比较接收机的性能。

英文摘要:

This paper considers signal detection in coexisting wireless sensor networks (WSNs). We characterize the aggregate signal and interference from a Poisson random field of nodes and define a binary hypothesis testing problem to detect a signal in the presence of interference. For the testing problem, we introduce the maximum likelihood (ML) detector and simpler alternatives. The proposed mixed-fractional lower order moment (FLOM) detector is computationally simple and close to the ML performance, and robust to estimation errors in system parameters. We also derived asymptotic theoretical performances for the proposed simple detectors. Monte-Carlo simulations are used to supplement our analytical results and compare the performance of the receivers.

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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