Application-Oriented LPWA Network with A Moving Gateway and Stationary End-Nodes
Application-Oriented LPWA Network with A Moving Gateway and Stationary End-Nodes
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DOI：
10.1109/tencon.2019.8929659
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发表时间：
2019-10
期刊：
影响因子：
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通讯作者：
Kenta Kusuda;M. Iwata
中科院分区：
文献类型：
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作者：
Kenta Kusuda;M. Iwata
近年来，低功耗广域网（LPWA）是实现低成本物联网（IoT）系统的最热门无线技术之一。许多专有的LPWA方案已被积极开发，其中一些已被用于商业服务。然而，LPWA方案牺牲数据速率以提供低功率和宽覆盖特征。即使通信链路支持低数据速率，也有必要研究一种新的网络，该网络可容纳分布在非常大的地理区域中的大量LPWA客户端。如果覆盖区域可以在一定的时间表中移动，则可以容易地扩展LPWA网络的有效通信区域。因此，本文提出了一个面向应用的LPWA网络与移动网关和地理定位的固定客户端。该网络可以减少网络中的总通信量，并通过跳过访问不必要的客户端来缩短移动路径的总长度。该网络还可以利用特定于应用的知识来减少流量和调度移动网关。基于所提出的网络，我们使用LoRa网关和LoRa客户端实现了一个挨家挨户垃圾收集的通知系统。通过一些实验测量和讨论，我们揭示了系统部署建议的网络的可行性。
Recently, low-power and wide area (LPWA) network is one of the hottest wireless technologies to realize low-cost Internet of things (IoT) systems. Many proprietary LPWA schemes have been actively developed, some of which have been utilized in commercial services. However, the LPWA schemes sacrifice data rate to provide low-power and wide coverage features. Even if the communication link supports low data rate, it is necessary to investigate a novel networking that accommodates a huge number of LPWA clients distributed in very large geographic area. If the coverage area can be made movable in certain schedule, effective communication area of LPWA network can be easily expanded. Therefore, this paper proposes an application-oriented LPWA network with a moving gateway and geo-located stationary clients. The proposed network can reduce the total communication traffic in the network and shorten the total length of moving path by skipping to visit unnecessary clients. This network also can utilize the application-specific knowledge for traffic reduction and scheduling of the moving gateway. Based on the proposed network, we implemented a notification system for house-to-house trash collection using LoRa gateway and LoRa clients. Through some experimental measurements and discussions, we reveals the feasibility of the system deploying the proposed network.