基于智能窃听器的无线协同定位网络调度

4区 计算机科学 Q3 Engineering Wireless Communications & Mobile Computing Pub Date : 2023-09-28 DOI:10.1155/2023/7533455
Ming Liu, Mu Jia, Tingting Zhang
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引用次数: 0

摘要

目前,基于无线协同定位网络的位置服务越来越普遍。然而,由于大多数定位网络节点是资源有限的,最近的研究集中在适当的网络调度策略,可以显著提高系统的性能,包括但不限于定位精度和能源效率。除了目前有效的非数据辅助策略外,我们发现一些被称为“窃听器”的沉默节点可以在不传输任何信号的情况下帮助定位任务。本文首先在实际的异步协作无线定位网络中制定了窃听调度策略。然后,对不同的窃听策略进行资源优化。考虑了双时隙和多时隙策略,并从实践的角度设计了三种倾听模式。数值结果表明,在传播路径受阻的情况下,专用窃听器网络的定位误差仅为常规网络的21%。此外,加入窃听锚点后,系统的定位性能提高了70%。研究结果可以为实际的低复杂度定位网络的部署和开发提供有意义的见解。
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Scheduling in Wireless Cooperative Localization Networks with Intelligent Eavesdroppers
Location-based service based on wireless cooperative localization networks is becoming ubiquitous nowadays. However, since the fact that most location network nodes are resource-limited, recent investigations focus on the proper network scheduling strategies that can significantly enhance the system performance, including but not limited to localization accuracy and energy efficiency. In addition to the current efficient nondata-aided strategies, we find that some silent nodes, called “eavesdroppers,” can be helpful to the localization task without transmitting any signals. In this paper, we first formulate the eavesdropping scheduling policy in practical asynchronous cooperative wireless localization networks. Then, we perform resource optimization in different eavesdropping-based strategies. Both two-slot and multislot strategies are considered, and three types of listening modes are designed from a practical point of view. Numeric results show that, for the scenario with a blocked propagation path, the localization error of networks with dedicated eavesdroppers is only 21% of the conventional networks. Besides, the system with eavesdropping anchors could improve the localization performance by 70%. The result could provide meaningful insights into the practical low-complexity location network deployment and development.
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来源期刊
自引率
0.00%
发文量
2475
审稿时长
9.9 months
期刊介绍: Presenting comprehensive coverage of this fast moving field, Wireless Communications and Mobile Computing provides the R&D communities working in academia and the telecommunications and networking industries with a forum for sharing research and ideas. The convergence of wireless communications and mobile computing is bringing together two areas of immense growth and innovation. This is reflected throughout the journal by strongly focusing on new trends, developments, emerging technologies and new industrial standards.
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