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Monitoring of In-Service Perceptual Speech Quality in Modern Cellular Radio Systems
2008 (Engelska)Konferensbidrag, Publicerat paper (Refereegranskat) Published
Abstract [en]

A method for in-service monitoring of the end-user perceptual speech quality in modern cellular radio systems is proposed. This method incorporates the perceptual evaluation of speech quality (PESQ) algorithm to monitor the quality experienced by the end-user. Here, the monitoring is carried out at the transmitting side. In this case, the speech signal received by the end-user is approximated at the transmitter in accordance with a feedback signal. The performance of the proposed scheme has been investigated through extensive computer simulations for the Universal Mobile Telecommunication System (UMTS) using different speech coding rates and channel conditions. The results indicate that the proposed scheme can predict the end-user quality with a root-mean-squared error (RMSE) of at most 0.15 using the mean opinion score (MOS) rating scheme. Such accuracy can be beneficial in applications such as network maintenance and radio resource management for satisfying desired level of quality of service.

Ort, förlag, år, upplaga, sidor
Prague, Czech Republic, 2008.
Nyckelord [en]
PESQ, MOS, UMTS
Nationell ämneskategori
Telekommunikation
Identifikatorer
URN: urn:nbn:se:bth-8583Lokalt ID: oai:bth.se:forskinfo81FD2CE23813FCE5C125746A005260E6OAI: oai:DiVA.org:bth-8583DiVA, id: diva2:836314
Konferens
International Conference on Measurement of Audio and Video Quality in Networks
Tillgänglig från: 2012-09-18 Skapad: 2008-06-16 Senast uppdaterad: 2015-06-30Bibliografiskt granskad

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