SGER: Cost-Effective Buffering Scheme for WDM Optical Packet Interconnects

SGER：用于 WDM 光数据包互连的经济高效的缓冲方案

• 批准号: 0744234
• 负责人: Yuanyuan Yang
• 金额: $ 4万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0744234&HistoricalAwards=false
• 关键词: SGER; Cost; Effective; Buffering; Scheme

Recent introduction and rapid growth of wavelength-division-multiplexing (WDM) technology provide a platform to exploit the huge capacity of optical fiber in computing and communication systems. The main difficulty of optical packet switching is how to resolve packet contention while minimizing packet loss. In this SGER project, a novel packet buffering scheme is explored for WDM optical interconnects which combines optical switching with electronic buffering. In the proposed scheme, arrived packets that do not cause contention are switched to output fibers directly; other packets are switched to shared receivers and converted to electronic signals and will be stored in the buffer until being sent out by shared transmitters. This project focuses on exploring the feasibility of the proposed buffering scheme. The performance of the scheme is studied through analytical modeling and simulations, and several related implementation issues are also investigated. The outcome of this project will be the foundation on which subsequent research on WDM optical packet interconnects will be launched to provide high-performance interconnects that enjoy both fast switching and large buffering capacity for future computer systems.

波分复用 (WDM) 技术的最新推出和快速发展为在计算和通信系统中利用光纤的巨大容量提供了一个平台。 光数据包交换的主要难点是如何解决数据包争用，同时最大限度地减少数据包丢失。在这个 SGER 项目中，探索了一种用于 WDM 光互连的新型数据包缓冲方案，该方案将光交换与电子缓冲相结合。在所提出的方案中，到达的不引起竞争的数据包被直接切换到输出光纤；其他数据包被切换到共享接收器并转换为电子信号并存储在缓冲区中，直到由共享发射器发送出去。该项目的重点是探索所提出的缓冲方案的可行性。通过分析建模和仿真研究了该方案的性能，并研究了一些相关的实施问题。该项目的成果将为后续开展WDM光分组互连的研究奠定基础，为未来的计算机系统提供兼具快速交换和大缓冲能力的高性能互连。