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

本计画探讨如何在不相交的无线感测网路区段间建立有效且资源效率高的连结。段可以属于由多个传感器节点的故障引起的结构损坏的网络。此外，这些段可以简单地是独立的无线传感器网络，通常由不同的机构运营，并将被联合以服务于共同的应用。这个项目的目标是开发新的解决方案的各个方面和背景下的联邦问题，创建一个原型验证和应用程序设计师分享的结果/经验。技术方法考虑资源的可用性，例如移动的传感器、移动的和静态网关及其计数。研究了用于重新定位移动的传感器和放置移动的网关的最优和启发式解决方案，以建立连通性并实现一些期望的性能（即，QoS）。最后，通过一个由传感器和移动的机器人组成的真实的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。这种应用的示例包括危机管理，其中现有的WSN可能由于火灾、洪水、碎片等而遭受节点的大量损失，或者当不同当事方或机构拥有或控制的网络的服务需要聚合以在搜索和救援中进行评估时。研究结果以各种形式提供，包括档案出版物、教程和网络资源。该项目通过实践项目丰富了UMBC和SIUC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.