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arXiv 1302.6646cs.NI
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认知无线电网络无线电环境地图构建研究

On the Construction of Radio Environment Maps for Cognitive Radio Networks

Zhiqing Wei, Qixun Zhang, Zhiyong Feng, Wei Li, T. Aaron Gulliver

摘要:

无线电环境地图(REM)为认知无线电网络(CRN)中的动态频谱接入(DSA)提供了一种有效的方法。以往的研究结果表明,REM建设存在的测量(传感器)和REM精度的数量之间的权衡。在本文中,我们分析了这种权衡,并确定REM误差是一个减少和凸函数的测量(传感器)的数量。引入地理熵的概念来量化这种关系。利用信息论技术研究了传感器部署对REM精度的影响。本文所得到的结果不仅适用于REM,但也适用于无线传感器网络部署。

英文摘要:

The Radio Environment Map (REM) provides an effective approach to Dynamic Spectrum Access (DSA) in Cognitive Radio Networks (CRNs). Previous results on REM construction show that there exists a tradeoff between the number of measurements (sensors) and REM accuracy. In this paper, we analyze this tradeoff and determine that the REM error is a decreasing and convex function of the number of measurements (sensors). The concept of geographic entropy is introduced to quantify this relationship. And the influence of sensor deployment on REM accuracy is examined using information theory techniques. The results obtained in this paper are applicable not only for the REM, but also for wireless sensor network deployment.

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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