NeTS-NBD: Grid Reconfigurable Optical and Wireless Network (GROW Net)

该项目开发了一种混合光和无线接入网，它结合了光网络提供的高容量和无线网状网络提供的灵活性和成本效益两种网络的优势。网络架构由光网格和无线网状网络组成，用于宽带接入。光网格网络通过可重构的光网格节点和分层环路路由算法提供宽带、高效的回程，使回程网络对实时流量需求具有很高的适应性。无线网状网络，渗透到用户附近，旨在促进成本效益，无处不在的链接在最后/前几百英尺，并扩大无线覆盖范围，而不牺牲系统带宽。为了提高系统性能，提出了一种光/无线混合路由算法，并在子载波多路光信道中构建了高性能的光纤射频。为了在光网格网络中实现灵活高效的业务路由，提出了一种新的可重构网格节点技术。研究内容包括路由算法设计、器件设计与实现、光无线子系统设计、混合网络试验台实现与性能评估等。更广泛的影响：该项目的指导原则是建立一个任何人、任何地点、任何时间、任何媒体的宽带接入网原型。通过向许多终端用户提供具有成本效益和无处不在的宽带连接，这项工作可以促进人们沟通、互动和工作的方式。如果成功，该项目中的光/无线混合方法将影响未来接入网的设计方式。

0627085 KazovksyThis project develops a hybrid optical and wireless access network, which combines advantages of both networks the high capacity provisioned by optical network, and the flexibility and cost-effectiveness provisioned by wireless mesh network. The network architecture consists of optical grid and wireless mesh networks for broadband access. The optical grid network provides broadband and efficient backhauling, enabled by reconfigurable optical grid nodes and hierarchical loop routing algorithms, so that the backhauling network is highly adaptive to real time traffic demand. The wireless mesh network, which penetrates into users' neighborhood, is designed to facilitate cost-effective, ubiquitous links in the last/first hundreds of feet, and extend the wireless coverage without sacrificing system bandwidth. A hybrid optical/wireless routing algorithm is developed and a high-performance RF over fiber in sub-carrier multiplex optical channels is built to improve the system performance. A novel reconfigurable grid node technology is developed for flexible and efficient traffic routing in the optical grid network. The research effort includes routing algorithm design, device design and implementation, optical and wireless subsystem design, and hybrid network testbed implementation and performance evaluation.Broader Impact: The guiding principle of this project is to build a prototype broadband access network for anyone, anywhere, anytime and any media. By providing a cost-effective and ubiquitous broadband link to many end-users, this work could facilitate the way people communicate, interact and work. If successful, the hybrid optical/wireless approach in this project could influence the way future access network are designed.