Title :
Objective characterization of voice service quality in wideband CDMA
Author :
Hosseini, H. ; Rohani, Behrooz ; Rohani, Bijan
Author_Institution :
Genista Res. Pte. Ltd., Singapore, Singapore
fDate :
6/23/1905 12:00:00 AM
Abstract :
We present a methodology and a tool for objective characterization of voice service quality in W-CDMA networks. Specifically, the speech quality of the UMTS adaptive multi-rate speech codec is investigated and relevant results are presented. The results show that the speech quality is not affected appreciably by transmission errors when the FER is kept below 1%. However, the codec can be operated at up to FER=7% in the highest codec mode while keeping a voice quality as good as or better than lower codec rates at lower FER
Keywords :
adaptive systems; broadband networks; cellular radio; code division multiple access; multiuser channels; radio networks; speech codecs; speech intelligibility; voice communication; FER; GSM; UMTS; W-CDMA networks; adaptive multi-rate speech codec; frame error rate; objective characterization; transmission errors; voice service quality; wideband CDMA; 3G mobile communication; Code standards; Distortion measurement; GSM; Multiaccess communication; Physical layer; Speech analysis; Speech codecs; Testing; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.957252
