NEDG: Next-Generation Long-Reach Broadband Access Networks

我们的社会越来越依赖互联网来即时获取信息。宽带接入可以对社会产生非常强烈的积极影响。在为本国公民提供廉价宽带接入方面，美国正落在后面。需要研究开发下一代宽带接入技术，这将导致新的具有竞争力的服务和应用。新颖性：该项目正在创造关于新型长距宽带接入网络(LR-BAN)架构、资源分配算法和网络演进以适应流量增长的设计、部署和运营方面的新知识。更广泛的影响：该项目使美国研究人员能够领导下一代宽带接入网络的开发。这个全面而综合的研究和教育项目应该通过学生培训来加强我们国家的教育基础设施，并以其发现影响美国电信业。具体地说，该项目正在研究新的网络架构、协议和算法，以设计和高效运营下一代宽带接入网络，这些网络可以在电信网络中提供跨越本地和城市区域的扩展覆盖。该项目正在开发有效的方法来扩展今天的S光纤到户(FTTH)网络的覆盖范围，通过利用波分复用无源光网络(WDM-PON)来服务于庞大的用户基础，从而将其从20公里的限制扩展到100公里甚至更远，从而产生长距离宽带接入网络(LR-BAN)。LR-BAN架构可以有效地减少电信运营商网络中的中心局数量，并降低其运营支出。该项目正在研究各种LR-BAN架构选项(例如环和支线？架构)；向具有不同需求集的用户灵活地按需分配带宽的方法(例如多线程轮询？)；以及使网络向未来可靠的宽带应用和技术演进的方法。

Our society is increasingly dependent on the Internet for instant access to information. Broadband access can have a very strong positive impact on society. The US is lagging behind in providing inexpensive broadband access to its citizens. Research is needed to develop next-generation broadband access technologies which will lead to new competitive services and applications. Novelty: This project is creating new knowledge on the design, deployment, and operation of the novel Long-Reach Broadband Access Network (LR-BAN) architecture, resource-allocation algorithms, and network evolution to accommodate traffic growth. Broader Impact: This project is enabling US researchers to lead the development of next-generation Broadband Access Networks. This comprehensive and integrated research and education project should enhance our nation's educational infrastructure through student training and influence the US telecom industry with its findings.Specifically, this project is investigating novel network architectures, protocols, and algorithms to design and efficiently operate next-generation broadband access networks that can provide extended coverage across local and metropolitan regions in telecom networks. The project is developing efficient methods for extending the coverage of today?s Fiber-to-the-Home (FTTH) networks from their 20-km limit to 100 km and beyond by exploiting wavelength-division multiplexing passive optical networks (WDM-PONs) to serve a large user base, leading to the Long-Reach Broadband Access Network (LR-BAN). The LR-BAN architecture can effectively decrease the number of Central Offices in a telecom operator's network and reduce its Operational Expenditure. This project is investigating various LR-BAN architectural options (such as ?ring-and-spur? architecture); methods to flexibly allocate bandwidth on demand to users with a diverse set of requirements (such as ?multi-thread polling?); and methods to evolve the network toward future reliable broadband applications and technologies.