FIND: Wireless Knowledge Infrastructure (WiKI)

在具有挑战性和信息丰富的环境中，移动性对用户本地信息的需求不断增加，要求信息服务和网络协议具备新的功能。无线知识基础设施（WiKI）项目开发了一个可扩展的通用系统层，该层基于应用编程语言和数据库系统概念的新思想——使用声明性语言和路由器、网络和主机状态的可组合视图——允许基于现有网络条件和策略进行监控、事件检测和触发。声明式路由算法考虑应用程序、会话和网络状态信息，在移动设备和有线基础设施节点之间建立自适应路由。数据流的跨层和跨域集成视图显示和抽象来自不同子系统和层的数据，为网络的“知识平面”提供了一步。WiKI采用了一种探索性的方法，即使用802.11构建一个小规模的软件基础设施，以了解费城人口稠密的城市地区的无线挑战，并基于WiKI模型开发原型服务。随着研究的进展，WiKI服务会逐渐得到完善。更广泛的影响：最终目标是将WiKI平台、软件和服务整合到“无线费城”市政WiFI项目中，以其整合的数字包容计划而闻名，该计划试图覆盖我们城市的经济弱势家庭。

Mobility has created an increasing demand for information local to the user in a challenging and information-rich environment, demanding new capabilities from information services and network protocols. The Wireless Knowledge Infrastructure (WiKI) project develops an extensible general-purpose system layer based on new ideas for applying concepts from programming languages and database systems - the use of declarative languages and composable views of router, network and host state - to allow monitoring, event detection and triggering based on extant network conditions and policies. Declarative routing algorithms take into account application, session and network state information to set up adaptive routes among mobile devices and wired infrastructure nodes. Cross-layer and cross-domain integrated views of data streams expose and abstract data from different subsystems and layers, providing a step towards a "Knowledge Plane" for networks. WiKI takes an exploratory approach, namely building a small-scale software infrastructure using 802.11 to understand the wireless challenges of heavily populated urban areas in Philadelphia, and to develop prototype services based on a WiKI model. WiKI services are incrementally refined as the research progresses. Broader Impact: The end goal is incorporation of WiKI platforms, software and services into the "Wireless Philadelphia" municipal WiFI effort, notable for its integral Digital Inclusion program which attempts to reach economically disadvantaged households in our city.