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Multiple Pipe Systems01:21

Multiple Pipe Systems

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Multipipe systems consist of complex configurations of interconnected pipes designed to transport fluids efficiently across intricate networks. They are essential in engineering applications requiring precise control over flow distribution, pressure, and head loss. They are categorized into series, parallel, loop, and network configurations, each distinguished by unique flow characteristics and applications.
Series Configuration
In a series configuration, fluid flows sequentially from one pipe...
433
Upsampling01:22

Upsampling

204
Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
204
Errors in Global Positioning System01:26

Errors in Global Positioning System

36
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
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相关实验视频

Updated: Jun 6, 2025

Quasi-light Storage for Optical Data Packets
07:45

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SSPRD:基于共享存储的硬件包重新排序和分复制系统,用于宽带网络中的多路径传输.

Jiandong Ma1,2, Zhichuan Guo1,2, Mangu Song1,3

  • 1National Network New Media Engineering Research Center, Institute of Acoustics, Chinese Academy of Sciences, No. 21, North Fourth Ring Road, Haidian District, Beijing 100190, China.

Micromachines
|November 27, 2024
PubMed
概括

软件定义广域网 (SD-WAN) 解决方案会导致数据包失序. 现场可编程网关阵列 (FPGA) 系统的SSPRD有效地重新排序和删除数据包,提高网络性能.

关键词:
在FPGA中,FPGA是指FPGA.旺旺是什么意思 旺旺是什么意思多路径传输的多路径传输.包重新排序的数据包.

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科学领域:

  • 计算机科学 计算机科学
  • 网络工程 网络工程
  • 硬件加速器 硬件加速器

背景情况:

  • 广域网 (WAN) 越来越多地使用多路径和冗余传输来实现更高的带宽和减少数据包丢失.
  • 这些技术在软件定义广域网 (SD-WAN) 中常见,导致目标处的数据包异常和重复.
  • 需要显著的硬件包缓冲区深度来管理不同的WAN路径延迟和恢复数据流.

研究的目的:

  • 提出一种基于硬件的新系统,用于高效的数据包重排序和重复删除.
  • 为应对在SD-WAN环境中管理失序和重复数据包的挑战.
  • 为了减少高速网络中数据包处理的缓冲区空间需求.

主要方法:

  • 推出了SSPRD,这是一个共享存储系统,使用现场可编程网关数组 (FPGA) 进行数据包重排序和复制.
  • 在所有会话中实现了对数据包和子缓冲区共享存储空间的动态分配.
  • 开发了一个基于分缓冲器的时限事件处理算法,以实现高效的数据流恢复.

主要成果:

  • SSPRD提供了一个深度的硬件重排序缓冲区,支持每会话最多可达15360个数据包,可用于四个并发会话.
  • 与现有解决方案相比,缓冲区空间使用量减少了62.5%.
  • 在1500字节的数据包中以10Gbps的速度进行高性能数据包重新排序和删复.

结论:

  • 在SD-WAN中,SSPRD提供了一种有效的硬件解决方案,用于管理 SD-WAN 中的数据包重排序和脱复制挑战.
  • 共享存储架构显著优化了缓冲区空间的利用.
  • 该系统实现了高吞吐量,使其适合要求高的网络应用.