On-site configuration of disaster recovery access networks made easy
On-site configuration of disaster recovery access networks made easy
复制标题
DOI：
10.1016/j.adhoc.2015.12.008
复制
发表时间：
2016-04
期刊：
影响因子：
4.8
通讯作者：
Q. Minh;Y. Shibata;C. Borcea;S. Yamada
中科院分区：
文献类型：
--
作者：
Q. Minh;Y. Shibata;C. Borcea;S. Yamada
灾难性的灾难可以摧毁大片区域，并在此过程中使许多受害者与世界其他地区隔绝。恢复通信基础设施通常既慢又贵，不适合应急响应。多跳无线接入网络具有为受害者快速提供互联网连接的潜力，但到目前为止还没有提出简单实用的解决方案来帮助人们轻松配置这些网络。我们正在寻求利用无线虚拟化技术使用现场移动设备动态建立无线接入网络的方法。虽然我们之前的工作展示了概念验证解决方案，但它缺乏基本的通信抽象、严格的设计和对这些解决方案的有效性的彻底分析。本文的主要新贡献是：(1)无线多跳通信抽象(WMCA)作为实用的基于树的灾难恢复接入网络(TDRAN)的基本通信概念；(2)TDRAN的完整设计和实现细节；(3)基于日本不同地点的室内和室外现场实验，对所提出的方法的有效性进行了全面的分析。结果表明，所提出的无线接入网现场配置方案是有效的，它可以很容易地扩展到15 m距离的20跳和30 m距离的16跳，半径分别为300 m和480 m，直径约1公里。这项工作也证实了我们的方法已经准备好作为真正的灾难恢复解决方案来实现。
Catastrophic disasters can destroy large regions and, in the process, leave many victims isolated from the rest of the world. Recovering the communication infrastructure is typically slow and expensive, which is not suitable for emergency response. Multihop wireless access networks have the potential to quickly provide Internet connectivity to victims, but so far no simple and practical solution has been proposed to help people configure these networks easily. We are pursuing the approach of utilizing wireless virtualization techniques to establish wireless access networks on-the-fly using on-site mobile devices. While our previous work has demonstrated proof-of-concept solutions, it lacked fundamental communication abstractions, a rigorous design, and a thorough analysis on the effectiveness of these solutions. The main new contributions of this article are: (1) thewireless multihop communication abstraction(WMCA) as a fundamental communication concept for a practicaltree-based disaster recovery access network(TDRAN), (2) the complete design and implementation details of TDRAN, and (3) a comprehensive analysis of the effectiveness of the proposed approach based on field experiments, both in indoor and outdoor settings, at different sites in Japan. The results demonstrate the effectiveness of the proposed solution for on-site configuration of wireless access networks, as it can easily extend to 20 hops by 15 m-distance and 16 hops by 30 m-distance networks, which result in 300 m and 480 m (respectively) in radius or about 1 km in diameter. This work also confirms that our approach is ready for realization as a real disaster recovery solution.