On the Joint Impact of Beamwidth and Orientation Error on Throughput in Directional Wireless Poisson Networks
On the Joint Impact of Beamwidth and Orientation Error on Throughput in Directional Wireless Poisson Networks
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DOI：
10.1109/twc.2014.2331055
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发表时间：
2014-12-01
影响因子：
10.4
通讯作者：
Weber, Steven
中科院分区：
文献类型：
--
作者：
Wildman, Jeffrey;Nardelli, Pedro Henrique Juliano;Weber, Steven
我们引入了一个模型，用于捕获波束误导的覆盖范围和吞吐量的定向无线网络中使用随机几何的影响。在采用理想的扇区天线没有旁瓣的网络中，我们发现，方向误差分布是足够的，以证明单调性和准单调性（相对于天线波束宽度）的空间吞吐量和传输容量，分别。此外，我们确定的网络条件，产生相反的极端选择波束宽度（绝对定向与全向），最大限度地提高两个相关的吞吐量指标。最后，我们总结了我们的论文与平均方向误差，吞吐量最大化的波束宽度，和最大吞吐量之间的关系，在不同的复杂性的辐射模式的数值探索。
We introduce a model for capturing the effects of beam misdirection on coverage and throughput in a directional wireless network using stochastic geometry. In networks employing ideal sector antennas without sidelobes, we find that concavity of the orientation error distribution is sufficient to prove monotonicity and quasi-concavity (both with respect to antenna beamwidth) of spatial throughput and transmission capacity, respectively. Additionally, we identify network conditions that produce opposite extremal choices in beamwidth (absolutely directed versus omni-directional) that maximize the two related throughput metrics. We conclude our paper with a numerical exploration of the relationship between mean orientation error, throughput-maximizing beamwidths, and maximum throughput, across radiation patterns of varied complexity.