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Energy-efficient geographic routing in the presence of localization errors

机译:存在本地化错误的节能地理路由

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Existing energy-efficient geographic routing algorithms have been shown to reduce energy consumption and hence prolong the lifetime of multi-hop wireless networks. However, in practical deployment scenarios, where location errors inevitably exist, these algorithms are vulnerable to a substantial performance degradation not only in terms of packet delivery ratio but also energy consumption. This paper focuses on the fundamental impact of localization errors in the design of energy-efficient geographic routing algorithms. First, we analyze the properties of existing energy-efficient geographic routing algorithms. This is then extended to compare these energy-efficient geographical routing algorithms in the presence of localization errors. The main contribution of this section is an in-depth analysis of the impact of location errors on geographic routing in terms of energy efficiency. By incorporating location error statistics into an objective function, we propose a new energy-efficient geographic routing algorithm named LED. An adaptive transmission strategy is then proposed to cope with the transmission failure caused by location errors. Finally, extensive performance evaluations show that our proposal is robust to location errors, thus statistically minimizing consumed transmit power as a packet is relayed from source to destination.
机译:现有的节能地理路由算法已被证明可以减少能耗,从而延长多跳无线网络的寿命。但是,在实际的部署场景中,不可避免地会出现位置错误,这些算法不仅在数据包传输率方面而且在能耗方面都容易受到性能大幅下降的影响。本文着眼于在节能的地理路由算法设计中本地化错误的基本影响。首先,我们分析现有节能地理路由算法的属性。然后将其扩展为在存在定位错误的情况下比较这些节能的地理路由算法。本节的主要贡献是就能源效率而言,深入分析了位置误差对地理路线的影响。通过将位置误差统计信息纳入目标函数,我们提出了一种名为LED的新型节能地理路由算法。然后提出了一种自适应传输策略,以应对由位置错误引起的传输故障。最后,广泛的性能评估表明,我们的建议对位置错误具有鲁棒性,因此,当数据包从源中继到目标时,从统计角度上将消耗的发射功率降至最低。

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