The κ-μ distribution applied to the analysis of fading in body to body communication channels for fire and rescue personnel
The κ-μ distribution applied to the analysis of fading in body to body communication channels for fire and rescue personnel
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DOI：
10.1109/lawp.2008.915807
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发表时间：
2008-01-01
影响因子：
4.2
通讯作者：
Guy, Jim
中科院分区：
文献类型：
--
作者：
Cotton, Simon L.;Scanlon, William G.;Guy, Jim
在这封信中，我们使用最近提出的卡帕-穆分布，对消防和救援人员的身体对身体通信信道中经历的衰落进行了新颖的表征。位于主要火警人员身上的发射器和位于另一名队员的防护头盔和肩膀上的四个战略放置的、时间同步的2.45 GHz接收器允许在一个四人救援队执行建筑物搜索和搜索操作时记录下小范围的信号变化。用极大似然估计法得到了参数kappa=2.31、u=1.19的一般kappa-u模型，并与实测数据进行了较好的拟合。文中还给出了这些信道的水平交叉率。
In this letter, we perform a novel characterization of the fading experienced in body to body communications channels for fire and rescue personnel using the recently proposed kappa - mu distribution. A transmitter positioned on the lead fire person and four strategically placed, time-synchronized 2.45-GHz receivers situated on the protective helmet and shoulders of another team member allowed small-scale signal variation to be recorded while a rescue team of four persons performed a building sweep and search type operation. A general kappa - mu model with parameters kappa = 2.31 and mu = 1.19 was obtained using maximum likelihood estimation and shown to provide a good fit to measured data. Level crossing rates for these channels are also presented.