NeTS: Small: Collaborative Research: Federating Disjoint Wireless Sensor Networks

该项目研究在不相交的无线传感器网络(WSN)网段之间有效和资源高效地建立连接。这些网段可以属于由多个传感器节点故障导致的结构损坏的网络。此外，这些网段可以简单地是独立的WSN，通常由不同的机构运营，并将联合起来服务于共同的应用。该项目的目标是为联邦问题的各个方面和背景开发新的解决方案，创建用于验证的原型，并与应用程序设计人员分享结果/经验。技术方法考虑移动传感器、移动和静态网关等资源的可用性及其数量。研究了移动传感器的重新定位和移动网关的布局的最优和启发式解决方案，以建立连通性并获得期望的性能(即服务质量)。最后，通过一个由传感器和移动机器人组成的真实试验台对结果进行了验证。该项目将提高许多民用和科学应用的有效性。这类应用的例子包括危机管理，其中现有的WSN可能由于火灾、洪水、碎片等而遭受节点的广泛损失，或者当由不同方或机构拥有或控制的网络的服务需要在搜索和救援中被聚合以进行评估时。结果以各种形式提供，包括档案出版物、教程和网上资源。该项目通过实践项目丰富了密歇根州立大学和圣迭戈州立大学的课程，并通过原型演示吸引了K-12学生。

This project investigates effective and resource efficient establishment of connectivity among disjoint wireless sensor network (WSN) segments. The segments can belong to a structurally damaged network caused by the failure of multiple sensor nodes. In addition, the segments can simply be standalone WSNs that are normally operated by different agencies and are to be federated to serve a common application. The objectives of this project are to develop novel solutions for various aspects and contexts of the federation problems, to create a prototype for validation and to share the results/experience with application designers. The technical approaches consider the availability of resources such as mobile sensors, mobile and static gateways and their count. Both optimal and heuristic solutions for repositioning of mobile sensors and placement of mobile gateways are studied to establish connectivity as well as achieving some desired performance (i.e., QoS). Finally, the results are validated via a real test-bed consisting of sensors and mobile robots. This project will boost the effectiveness of many civil and scientific applications. Example of such applications include crisis management, where existing WSNs may suffer an extensive loss of nodes due to fire, flooding, debris, etc., or when the services of networks owned or controlled by different parties or agencies need to be aggregated to assess in search-and-rescue. The results are made available in various forms including archival publications, tutorials and web-based resources. The project is enriching the curricula at UMBC and SIUC through hands-on projects and attracting K-12 students via prototype demonstrations.