EAGER: Liquid Foundation Internet

EAGER：互联网粉底液

• 批准号: 1936572
• 负责人: Michael Luby
• 金额: $ 30万
• 依托单位: International Computer Science Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-10-01 至 2020-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1936572&HistoricalAwards=false
• 关键词: EAGER; Liquid; Foundation; Internet

Internet traffic traveling over wireless networks, such as 5G and wireless mesh networks, inevitably experiences loss, i.e., a fraction of sent data packets are lost and never arrive at their destination. Loss is exacerbated when senders or receivers are mobile. The current design of the internet inefficiently deals with loss by workarounds such as retransmitting lost data. This project envisions a redesign of the internet that will accommodate loss by fundamentally reimagining how internet data is stored and transmitted, as well as an investigation of smaller incremental steps that might be taken to facilitate this larger redesign. Improving the capability of wireless networks in this way will enable deployment of a more reliable, robust, responsive, and efficient internet to underserved and rural communities around the world that rely on wireless connectivity.The proposal is to flesh out an internet design based on a fountain code, i.e., all data stored or transmitted within the internet will be fountain encoded data. A fountain code is an erasure code that is scalable in two dimensions: (1) the size of an object which can be efficiently encoded and decoded is essentially unlimited; and (2) the amount of encoded data that can be generated from an object is essentially unlimited. A fountain code has (nearly) optimal recovery, i.e., any portion of encoded data (nearly) equal in size to an object is sufficient to recover the object. The design will separate loss recovery from congestion control, incorporate universal mechanisms to simply and gracefully handle packet loss, mobility, long latency paths, and failing infrastructure, include mechanisms to address novel security concerns, and take into account deployment concerns.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

通过无线网络（例如 5G 和无线网状网络）传输的互联网流量不可避免地会发生丢失，即发送的数据包的一小部分会丢失并且永远不会到达目的地。 当发送者或接收者移动时，丢失会加剧。当前的互联网设计无法通过重传丢失数据等变通办法有效地处理丢失问题。 该项目设想重新设计互联网，通过从根本上重新构想互联网数据的存储和传输方式来适应损失，并对可能采取的较小增量步骤进行调查，以促进这种更大的重新设计。 以这种方式提高无线网络的能力将能够为世界各地依赖无线连接的服务欠缺和农村社区部署更可靠、更强大、反应更灵敏、更高效的互联网。该提案旨在充实基于喷泉码的互联网设计，即互联网内存储或传输的所有数据都将是喷泉编码数据。喷泉码是一种在两个维度上可扩展的纠删码：（1）可以有效编码和解码的对象的大小本质上是无限的； (2) 可以从对象生成的编码数据量本质上是无限的。喷泉码具有（几乎）最佳恢复能力，即编码数据的任何部分（几乎）等于对象大小都足以恢复该对象。 该设计将丢失恢复与拥塞控制分开，采用通用机制来简单而优雅地处理数据包丢失、移动性、长延迟路径和故障基础设施，包括解决新安全问题的机制，并考虑部署问题。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。