Title :
In-service error monitoring capability in SDH network
Author :
Murakami, Hideyo ; Sato, Naosi ; Okamoto, Tukasa ; Asatani, Kouichi
Author_Institution :
NTT Telecommun. Networks Labs., Tokyo, Japan
Abstract :
A description is given of how burst transmission errors affect the quality of service (QOS) of telecommunication services such as data, group three and group four facsimile, and speech. The authors also present characteristics of transmission errors in real networks and show the requirements for in-service monitoring of quality for all services. A method is proposed for estimating error burst duration and error-free interval by in-service monitoring of bit interleaved parity (BIP) violations in a synchronous digital hierarchy (SDH) system. The in-service monitoring capability of the proposed method is also evaluated
Keywords :
data communication systems; digital communication systems; facsimile; synchronisation; telecommunication networks; telecommunication services; voice communication; SDH network; bit interleaved parity violations; burst transmission errors; data; error burst duration; error-free interval; group four facsimile; group three facsimile; in-service error monitoring; quality of service; speech; synchronous digital hierarchy; telecommunication services; transmission errors; B-ISDN; Degradation; Facsimile; Intelligent networks; Monitoring; Quality of service; Speech; Synchronous digital hierarchy; Telecommunication services; Telephony;
Conference_Titel :
Communications, 1991. ICC '91, Conference Record. IEEE International Conference on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-0006-8
DOI :
10.1109/ICC.1991.162239
