EAGER: Liquid Foundation Internet

在无线网络（诸如5G和无线网状网络）上行进的互联网流量不可避免地经历损失，即，一部分发送的数据分组丢失并且永远不会到达它们的目的地。 当发射机或接收机是移动的时，损耗加剧。目前的互联网设计通过诸如重新传输丢失的数据等变通方法来低效地处理丢失。 该项目设想重新设计互联网，通过从根本上重新想象互联网数据的存储和传输方式来适应损失，以及调查可能采取的较小增量步骤来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使世界各地依赖无线连接的服务不足和农村社区能够部署更可靠，更强大，更灵敏和更高效的互联网。该提案是充实基于喷泉码的互联网设计，即，在因特网内存储或传输的所有数据将是喷泉编码数据。喷泉码是在两个维度上可缩放的纠删码：（1）可以被有效地编码和解码的对象的大小基本上是无限的;以及（2）可以从对象生成的编码数据的量基本上是无限的。喷泉码具有（接近）最佳恢复，即，大小（几乎）等于对象的编码数据的任何部分都足以恢复该对象。 该设计将从拥塞控制中分离丢失恢复，结合通用机制来简单而优雅地处理分组丢失，移动性，长延迟路径和失败的基础设施，包括解决新的安全问题的机制，该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查进行评估，被认为值得支持的搜索.

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.