A WDM Oriented Switching Architecture

面向 WDM 的交换架构

• 批准号: 9104317
• 负责人: Imrich Chlamtac
• 金额: $ 4.99万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-01 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9104317&HistoricalAwards=false
• 关键词: WDM; Oriented; Switching; Architecture

The proposed one year project will explore high performance architectures applicable to realizing optical WAN switches. Some of the major drawbacks of currently proposed high speed "optical" switches are the need for rapidly tunable transmitters or receivers requiring fast control for contention resolution and for transmitter-receiver coordination. Alternatively, current architectures based on the use of fixed transmitters and receivers, as in a Shuffle, result in good performance only for homogeneous traffic patterns and do not smoothly adapt to component failures. The principle of the proposed solution is the use of wavelength or frequency routing, in a way which trades the high bandwidth of these technologies for simplifying the processing and hardware switch requirements. the proposed solution integrates time oriented control with wavelength division multiplexing (WDM) targeted to overcome the above limitations. The objective of the one year effort will be to explore the major issues that restrict WDM/TDM (time division multiplexing) operations and propose a preliminary switch architecture. The operation of the proposed system will be evaluated through simulation to provide a quantitative measure for evaluating the future potential of the proposed approach.

拟议的为期一年的项目将探索适用于实现光广域网交换机的高性能架构。 当前提出的高速“光”交换机的一些主要缺点是需要快速可调谐的发射机或接收机，需要快速控制争用解决和发射机-接收机协调。 或者，基于使用固定发射器和接收器的当前架构（如在 Shuffle 中）仅对于同质流量模式产生良好的性能，并且不能平滑地适应组件故障。 所提出的解决方案的原理是使用波长或频率路由，以牺牲这些技术的高带宽来简化处理和硬件交换要求。 所提出的解决方案将面向时间的控制与波分复用 (WDM) 相结合，旨在克服上述限制。 为期一年的工作目标是探索限制 WDM/TDM（时分复用）操作的主要问题，并提出初步的交换机架构。 将通过模拟来评估所提议系统的运行，以便为评估所提议方法的未来潜力提供定量测量。