Adaptive channel hopping for wireless sensor networks
Adaptive channel hopping for wireless sensor networks
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DOI：
10.1109/icost.2011.6085828
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发表时间：
2011-11
期刊：
影响因子：
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通讯作者：
P. Du;G. Roussos
中科院分区：
文献类型：
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作者：
P. Du;G. Roussos
无线传感器网络（WSN）是物联网的重要组成部分。然而，它们的性能受到许多因素的影响，例如来自共享同一频谱的其他同址无线通信技术的干扰以及由于环境因素而产生的衰落。信道跳变是为减轻这些不利影响而引入的几种自适应技术之一。本文研究了自适应信道跳变，以及用这种能力增强现有无线传感器网络系统的优点和成本。本文以IEEE 802.15.4e为例，给出了OpenWSN的完整设计和实现细节，并给出了实验结果。这项工作的主要发现是，黑名单可以显著改善信道跳变协议的性能，从而提高存在干扰和衰落的wsn的整体可靠性。
Wireless sensor networks (WSN) are an essential element of the Internet of Things. However, their performance is influenced by many factors such as interference from other co-located wireless communication technologies that are sharing the same spectrum and fading due to environmental factors. Channel hopping is one of several adaptation techniques introduced to mitigate these adverse effects. This paper investigates adaptive channel hopping and the advantages and costs related to augmenting existing WSN systems with this capability. We provide complete design and implementation details on OpenWSN considering specifically the case of IEEE 802.15.4e, and also present the results of our experiments. The main finding of this work is that blacklisting can provide a significant improvement in the performance of channel hopping protocols and thus enhance the overall reliability of WSNs in the presence of interference and fading.