Memorias de investigación
Communications at congresses:
Influencia de los Eventos de Traspaso en la Calidad Subjetiva de Voz en Redes WLAN
Year:2008

Research Areas
  • Processing and signal analysis

Information
Abstract
Although networks based on IEEE802.11 was originally intended to transport best-effort data traffic, the incorporation of new standards like IEEE802.11e has brought about the opportunity of supplying real time voice communications with strict requirements of quality of service. In WLAN IEEE802.11 networks, the handover process follow a ¿break-before-make¿ mechanism, provoking discontinuities in the communication, which have associated a variation of the packet loss rate, and, therefore, changes in the subjective quality of voice perceived by the user along the communication. It will be necessary to take into account this effect in the planning and sizing process of WLAN networks which have to deal with conversational services. With this purpose, in this paper is illustrated the influence of the horizontal handover events on the evolution of the conversational quality for different VoIP codecs and several handover decision algorithms.
International
No
Congress
XXIII Simposium Nacional de la Unión Científica Internacional de Radio. URSI 2008.
960
Place
Madrid, España
Reviewers
Si
ISBN/ISSN
978-84-612-6291-5
Start Date
22/09/2008
End Date
24/09/2008
From page
1
To page
4
Actas del XXIII Simposium Nacional de la Unión Científica Internacional de Radio. URSI 2008.4
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Microondas y Radar
  • Departamento: Señales, Sistemas y Radiocomunicaciones