Design and implementation of a communications system for streaming real-time voice using SDR technology in USRP E110 devices

Author

Torres, M.D. ; Vaca, C.S. ; Altamirano, C.D. ; Bernal, C.P.

Author_Institution

Univ. de las Fuerzas Armadas ESPE Electron. y Telecomun. Sangolqui -Ecuador, Ecuador

fYear

2014

Firstpage

1

Lastpage

1

Abstract

The SDR devices along with GNU Radio Software tool have taken to a new level in designing radio communications systems. This technology uses blocks-processing software that substitutes everything that is far implemented at the physical layer hardware. By designing a software radio system, this paper presents the implementation of a real time voice Tx/Rx using an embedded GMSK modulation in USRP E110 devices, the system performance was evaluated from an cualitative and cuantitative viewpoint using Mean Opinion Score (MOS) and Modified Bark Spectral Distortion (MBSD) algorithm, another tests were also performed.

Keywords

distortion; minimum shift keying; software defined networking; GMSK modulation; GNU radio software tool; SDR devices; SDR technology; USRP E110 devices; blocks-processing software; communications system; mean opinion score; modified bark spectral distortion; physical layer hardware; radio communications systems; real time voice Tx/Rx; software radio system; streaming real-time voice; Hardware; Physical layer; Radio communication; Real-time systems; Software tools;

fLanguage

English

Publisher

ieee

Conference_Titel

ANDESCON, 2014 IEEE

Print_ISBN

978-1-4799-6685-1

Type

conf

DOI

10.1109/ANDESCON.2014.7098571

Filename

7098571