A uniform airdrop deployment method for large-scale wireless sensor networks
A uniform airdrop deployment method for large-scale wireless sensor networks
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DOI：
10.1504/ijsnet.2011.040239
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发表时间：
2011-05
期刊：
影响因子：
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通讯作者：
Y. Taniguchi;T. Kitani;K. Leibnitz
中科院分区：
文献类型：
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作者：
Y. Taniguchi;T. Kitani;K. Leibnitz
传感器节点的初始物理位置对无线传感器网络在覆盖、连通性、生存期和健壮性等方面的性能有很大影响。在本文中，我们提出了一种新的传感器节点部署方法，当大量节点从空中分布在从地面无法到达的监测区域时。在我们的部署方法中，每个传感器节点都配备了一个降落伞和一个设备来在其在空中的两种下降行为(滑翔和下降)之间切换。传感器节点从半空中坠落后，随机协调自身的坠落行为，以便在监测区域内均匀分布。此外，每个传感器节点在空中与相邻节点交换消息，并根据相邻节点的密度改变其下落行为，以减少不均匀区域。通过仿真评估，与传统的空投方法相比，我们的方案可以达到更高的节点布局一致性。
The performance of wireless sensor networks in terms of coverage, connectivity, lifetime and robustness is greatly influenced by the initial physical placement of the sensor nodes. In this paper we propose a novel deployment method for sensor nodes, when a large number of nodes is distributed from the air in a monitoring region that is inaccessible from the ground. In our deployment method, each sensor node is equipped with a parachute and a device to switch between its two falling behaviours (gliding and falling) in the air. After being dropped from midair, sensor nodes stochastically coordinate their falling behaviour in order to distribute themselves uniformly in the monitoring region. In addition, each sensor node exchanges messages with neighbouring nodes while being airborne and it changes its falling behaviour according to the density of the neighbouring nodes in order to reduce non-uniform areas. Through simulation evaluations, we confirm that our proposal can achieve a high uniformity in the placement of the nodes compared to a traditional airdrop method.