动态传感器网络中控制事件检测概率的占空比调度

H. Jaleel, A. Rahmani, M. Egerstedt
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引用次数: 10

摘要

由射频或基于雷达的传感器组成的传感器网络的性能会随着功率水平的降低而下降,因为有效传感器占地面积会随着功率水平的降低而缩小。功率通常仅在传感器节点打开时从传感器节点提取,因此,可以通过控制传感器的占空比来控制功耗。在本文中,我们提供了基于泊松分布的传感器网络中部署在感兴趣区域的占空比的概率调度,该调度确保在网络的整个生命周期中实现性能度量,例如事件检测的概率。根据衰减率、空间分布强度和期望的网络性能给出了网络性能的上界。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Duty cycle scheduling in dynamic sensor networks for controlling event detection probabilities
A sensor network comprising of RF or radar-based sensors has a deteriorating performance in that the effective sensor footprint shrinks as the power level decreases. Power is typically only drawn from the sensor nodes when they are turned on, and as a consequence, the power consumption can be controlled by controlling the duty cycle of the sensors. In this paper, we provide a probabilistic scheduling of the duty cycles in a sensor network deployed in an area of interest based on a Poisson distribution which ensures that a performance measure, e.g., the probability of event detection, is achieved throughout the lifetime of the network. Upper bounds on the performance of the network are given in terms of the decay rates, the spatial distribution intensity, and the desired performance of the network.
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