Title :
Monitoring the End User Perceived Speech Quality using the Derivative Mean Opinion Score (MOS) Key Performance Indicator
Author :
Vlahodimitropoulos, K. ; Katsaros, E.
Author_Institution :
Cosmote, Athens
Abstract :
A mathematical matrix formalism which combines network management system (NMS) statistics from Cosmote GSM land mobile radio network and MOS measurements derived from drive tests are used, in order to extract a derivative MOS key performance indicator. Initially, the calculation is performed in a base station controller (BSC) area and then base transceiver stations (BTS) MOS distribution patterns are examined for different speech encodings. Examples of speech encoding effectiveness evaluation are performed using the previous speech encoding distribution patterns. Moreover, the effect of mobile station (MS) technology on different speech encodings is pointed out. Ultimately, different speech encodings are compared using quality and speech codec distribution patterns.
Keywords :
cellular radio; matrix algebra; mobile radio; monitoring; speech codecs; statistics; telecommunication network management; transceivers; Cosmote GSM; base station controller; base transceiver stations; derivative mean opinion score; key performance indicator; land mobile radio network; mathematical matrix formalism; monitoring; network management system; speech codec distribution patterns; speech encodings; speech quality; statistics; Encoding; GSM; Land mobile radio; Monitoring; Radio spectrum management; Speech analysis; Speech codecs; Statistical analysis; Statistical distributions; System testing;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394256
