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首页> 外文期刊>Aerospace and Electronic Systems, IEEE Transactions on >Throughput per Pass for Data Aggregation from a Wireless Sensor Network via a UAV
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Throughput per Pass for Data Aggregation from a Wireless Sensor Network via a UAV

机译：通过UAV从无线传感器网络进行数据聚合的每遍吞吐量

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摘要

Data retrieval from a sensor field by means of unmanned aerial vehicle (UAV) has increasing interests for both commercial, military, and homeland security applications. In these situations, the design of energy-efficient communication links between sensor field and UAV is crucial, owing to battery powered sensor nodes. We propose an energy-efficient cooperative transmission scheme for wireless sensor networks (WSNs) where data gathered by sensor nodes need to be collected into a far receiver. In particular, we consider a network composed of sensor nodes that share a common message that has to be transmitted asynchronously toward a fusion center onboard a UAV. We consider that the communication channels between the nodes and the fusion center are subject to fading and noise. Due to the far communication distance and energy constraint at each node, the fusion center must be able to reliably receive the weak and noisy signals. In our approach the fusion center consists of a Rake receiver capable of collecting multiple replicas of the same information from the nodes in the WSN. The performance of the proposed cooperative diversity scheme is then studied in terms of throughput, bit error probability, and energy efficiency. The results obtained show that, as the number of nodes increases, the proposed approach increases network lifetime, communication reliability, and throughput.
机译：借助无人机（UAV）从传感器领域获取数据对商业，军事和国土安全应用都越来越感兴趣。在这些情况下，由于电池供电的传感器节点，传感器场与无人机之间节能通信链路的设计至关重要。我们为无线传感器网络（WSN）提出了一种节能高效的协作传输方案，其中需要将传感器节点收集的数据收集到远端接收器中。特别地，我们考虑一个由传感器节点组成的网络，这些传感器节点共享一个公共消息，该消息必须朝着无人机上的融合中心异步传输。我们认为节点与融合中心之间的通信信道容易受到衰落和噪声的影响。由于每个节点之间的通信距离远且能量有限，融合中心必须能够可靠地接收微弱和嘈杂的信号。在我们的方法中，融合中心由一个Rake接收器组成，该接收器能够从WSN中的节点收集相同信息的多个副本。然后根据吞吐量，误码率和能效来研究提出的协作分集方案的性能。获得的结果表明，随着节点数量的增加，所提出的方法会增加网络寿命，通信可靠性和吞吐量。

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