西安电子科技大学学报

• 研究论文 • 上一篇    下一篇

一种利用最佳路径搜索的PDU容错定界算法

范亮;王晓梅;杨东煜   

  1. (解放军信息工程大学 信息系统工程学院,河南 郑州  450002)
  • 收稿日期:2015-06-11 出版日期:2016-10-20 发布日期:2016-12-02
  • 通讯作者: 范亮
  • 作者简介:范亮(1989-),男,解放军信息工程大学硕士研究生,E-mail: fanlya6@163.com.
  • 基金资助:

    西南电子电信技术研究所预研资助项目(2014024)

Algorithm for error-tolerant delimitation for the protocol data unit based on best path searching

FAN Liang;WANG Xiaomei;YANG Dongyu   

  1. (College of Information Engineering, The PLA Information Engineering Univ., Zhengzhou  450002, China)
  • Received:2015-06-11 Online:2016-10-20 Published:2016-12-02
  • Contact: FAN Liang

摘要:

针对在无线网络中因高误比特率而使协议数据单元定界易出错的问题,提出一种基于最佳路径搜索的协议数据单元容错定界算法.通过针对两类与协议数据单元定界相关的协议冗余的分析,在提出粗定界算法的基础上,将协议数据单元定界问题转化为路径搜索问题,给出了一种基于最佳路径搜索的协议数据单元容错定界算法.以无线异步传输模式网络中AAL5/IP网络协议为例进行仿真分析,仿真结果表明,该算法能有效降低协议数据单元的定界错误率,能克服常规定界方法对差错敏感的缺陷,具有良好的容错定界能力.

关键词: 无线网络, 协议数据单元, 定界, 路径搜索, 容错

Abstract:

Aiming at the error delimitation caused by the high bit error rate in a wireless network, an algorithm for error-tolerant delimitation for the Protocol Data Unit (PDU) based on best path searching is proposed. With the analysis of the protocol redundancy in delimitation, the PDU delimitating is treated as a path searching problem exploiting the rough delimitation result, then an algorithm based on best path searching is provided. Simulation and analysis of the ATM Adaption Layer 5 (AAL5) and Internet Protocol (IP) protocols in the Asynchronous Transfer Mode (ATM) network show that this method can decrease the rate of error delimitation, overcoming the conventional one's sensitivity to error and achieving a better error-tolerant performance.

Key words: wireless network, protocol data unit, delimitation, path searching, error-tolerant