Napping backbones: energy efficient topology control for wireless sensor networks

R. Ghosh, S. Basagni
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引用次数: 10

Abstract

In this study we have investigated the effectiveness of building "napping backbones" for data dissemination in wireless sensor networks. The NAPBACK protocol builds connected backbones whose nodes are endowed with a sleep/awake schedule that induces considerable energy savings, and hence prolongs the network lifetime. Via simulations on networks with up to 250 nodes we have observed increases on network lifetime up to almost 70% with respect to previous topology control protocols (S-DMAC). Increased latency is the price to pay for the improvements on lifetime, which currently makes NAPBACK a viable solution for delay-insensitive WSN applications. Multifold are the research directions opened by this initial study. We are planning to design different methods for defining the schedules of the backbone nodes. Final aims include the minimization of the latency, as well as throughput maximization. Sleep/awake scheduling methods should also be independent of nodes synchronization, and could be based on deterministic strategies, rather than the simple randomized technique used here.
午睡骨干网:无线传感器网络的高能效拓扑控制
在这项研究中,我们研究了在无线传感器网络中建立“午睡骨干网”的有效性。NAPBACK协议建立了连接的骨干网,这些骨干网的节点被赋予了睡眠/觉醒时间表,这可以节省大量的能量,从而延长了网络的生命周期。通过对多达250个节点的网络的模拟,我们观察到与以前的拓扑控制协议(S-DMAC)相比,网络寿命增加了近70%。延迟的增加是生命周期改善的代价,这使得NAPBACK目前成为延迟不敏感WSN应用的可行解决方案。这一初步研究开辟了多元化的研究方向。我们计划设计不同的方法来定义骨干节点的调度。最终目标包括最小化延迟,以及吞吐量最大化。睡眠/觉醒调度方法也应该独立于节点同步,并且可以基于确定性策略,而不是这里使用的简单随机化技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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