Dual stream transmission to improve mobile VoIP services over HSPA: A practical test bed

Author

Beritelli, Francesco ; Gallotta, Alessandro ; Palazzo, Simone ; Rametta, Corrado

Author_Institution

Dipt. di Ing. Elettr., Elettron. e Inf. (DIEEI), Univ. of Catania, Catania, Italy

fYear

2013

fDate

4-6 Sept. 2013

Firstpage

773

Lastpage

777

Abstract

As we already know, perceived speech quality of mobile VoIP applications depends on the individual telephone operator where the radio link is not always reliable for the entire duration of a conversation. Moreover, the quality of voice traffic over IP is greatly reduced due to the strong current limitations in terms of requirements regarding delay and guaranteed bandwidth. In particular, the scope of the paper is to present the architecture and the performance evaluation of a dual stream approach to mobile VoIP applications. Test results, obtained via practical test bed, in which a duplicate copy of a voice packet is sent using two different HSPA operators, present an average packet loss reduction of 60% and an average improvement of speech quality of about 0,8 MOS.

Keywords

Internet telephony; mobile radio; speech enhancement; telecommunication traffic; HSPA operator; dual stream transmission; mobile VoIP services; packet loss reduction; speech quality; telephone operator; voice packet; voice traffic over IP; Computer architecture; Mobile communication; Packet loss; Receivers; Speech; Streaming media; 3G networks; dual streaming; mobile VoIP; speech enhancement;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing and Analysis (ISPA), 2013 8th International Symposium on

Conference_Location

Trieste

Type

conf

DOI

10.1109/ISPA.2013.6703841

Filename

6703841