光传送网中差错检测码的研究(Ⅰ)

北京邮电大学学报 ›› 2001, Vol. 24 ›› Issue (4): 30-33.

光传送网中差错检测码的研究(Ⅰ)

李晗, 何建吾, 王健全, 顾畹仪

北京邮电大学电信工程学院,北京 100876

收稿日期:2001-02-19 出版日期:2001-12-10
作者简介: 李晗(1975—),男,博士生。
基金资助:
国家自然基金重大项目和高等学校博士学科点专项科研基金资助(1999001305)

Analysis of Error Detection Codes in Optical Transport Networks

LI Han, HE Jian-wu, WANG Jian-quan, GU Wan-yi

Telecommunication Engineering School, Beijing University of Posts andTelecommunications, Beijing 100876, China

Received:2001-02-19 Online:2001-12-10
Supported by:

摘要/Abstract

摘要： 推导了在波松误码模型和突发误码模型下,比特块产生差错的概率、检测出差错块的概率和检测效率的数学表达式。在此基础上,模拟并分析了不同EDC所能检测的最大误码率(饱和误码率)和最低检测效率,得出为每个串接监视域分配一个BIP字节可以满足性能监视的需求的结论。如果要求EDC的检测效率至少不低于90%,可以采用2×BIP-4差错检测方案;如果不需要实时地测量性能状态,可以采用8×BIP-1差错检测方案。

关键词: 光传送网, 比特间插奇偶校验, 差错检测码, 光通路层

Abstract: Based on the Possion Error Model and Burst Error Model, we obtain the mathematical expressions for the probabilities of occurrence ofa block error and of detecting a block error, as well as the detection efficiency. Analyses and simulations to determine the maximum BER that can be detected (i.e., the saturation BER) and the minimum detection efficiency are given. Conclusions are drawn as follows: one BIP byte per tandem connection monitoring fieldis adequate for performance monitoring; 2*BIP-4 EDC should be adopted to meet the requirement that the detection efficiency be no less than 90%; 8*BIP-1 EDC is acceptable if the real-time BER measurement estimate is not required.

Key words: OTN, BIP, EDC, OCh

中图分类号:

TN929.11

李晗, 何建吾, 王健全, 顾畹仪. 光传送网中差错检测码的研究(Ⅰ)[J]. 北京邮电大学学报, 2001, 24(4): 30-33.

LI Han, HE Jian-wu, WANG Jian-quan, GU Wan-yi. Analysis of Error Detection Codes in Optical Transport Networks[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2001, 24(4): 30-33.

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