计算机应用 ›› 2005, Vol. 25 ›› Issue (03): 560-562.DOI: 10.3724/SP.J.1087.2005.0560

• 信息安全 • 上一篇    下一篇

一种快速冗余容错编码方法及其在IP网络QoS控制中的应用

侯越先，何丕廉，傅爱玲   

  1. 天津大学计算机科学与技术系
  • 发布日期:2005-03-01 出版日期:2005-03-01

A new redundant encoding scheme and its applicationin QoS controlling of IP networks

HOU Yue-xian,HE Pi-lian,FU Ai-ling   

  1. Department of Computer Science and Technology, Tianjin University
  • Online:2005-03-01 Published:2005-03-01

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摘要： 首先提出一种快速容错编码方法:混洗素矩阵 (ShuffledPrimeMatrix,SPM)码。SPM是对目前广泛应用于非实时环境 (例如RAID磁盘阵列 )中的Reed Solomon冗余容错码的变例。相对于后者,SPM码具有时间效率高、节省内存资源和程序实现简便等优势,因而更适合于实时环境或嵌入式应用的需求。给出了基于SPM码的IP网络端到端的QoS控制方案,并分析了其有益效果。

关键词: Reed-Solomon码, 混洗素矩阵码, IP网络, QoS控制

Abstract: The paper proposed an encoding scheme of redundancy code, SPM (Shuffled Prime Matrix) code. It was the variation of the popular RS (Reed-Solomon) code. Compared with the latter, SPM was more efficient in time and space and easier to be implemented. Therefore, SPM was more suit for real-time or embedded applications. Based on SPM, an end-to-end QoS controlling scheme was proposed and its benefits were demonstrated.

Key words: Reed-Solomon code, shuffled prime matrix code, IP networks, QoS controlling

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