Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Similares en SciELO
Compartir
Journal of applied research and technology
versión On-line ISSN 2448-6736versión impresa ISSN 1665-6423
J. appl. res. technol vol.8 no.1 Ciudad de México abr. 2010
CrossLayer optimization of the packet loss rate in mobile videoconferencing applications
R. RiveraRodríguez*1,2, O. E. OlivaresDomínguez2, A. SerranoSantoyo3
1 Universidad Autónoma de Baja California Facultad de Ingeniería, Campus Mexicali Obregón y Julián Carrillo s/n C.P. 21100 Mexicali, Baja California Norte, México *rrivera@cicese.mx
2 Centro de Investigación Científica y de Educación Superior de Ensenada CICESE División de Física Aplicada, Departamento de Electrónica y Telecomunicaciones Carretera EnsenadaTijuana 3918 Zona Playitas C. P. 22860 Ensenada, Baja California, México.
3 Centro de Investigación Científica y de Educación Superior de Ensenada CICESE Dirección de Impulso a la Innovación y Desarrollo Carretera EnsenadaTijuana 3918 Zona Playitas C. P. 22860 Ensenada, Baja California, México.
ABSTRACT
Videoconferencing transmission over wireless channels presents relevant challenges in mobile scenarios at vehicular speeds. Previous contributions are focused on the optimization of the transmission of multimedia and delaysensitive applications over the forward link. In this paper, a new Quality of Service (QoS) parameter adaptation scheme is proposed. This scheme applies the CrossLayer Design technique on the reverse link of an 1xEVDO Revision 0 channel. As the wireless channel parameters and the vehicle speed have significant influence in the network layer packet loss rate, it is proposed that the data rate generated by the application adapts itself to the throughput offered by the lower layers as a function of such packet loss rate. Simulations of the proposed model show a significant reduction in losses caused by wireless channel impairments and vehicle mobility, resulting in an improvement in the performance of the mobile videoconferencing session.
Keywords: CrossLayer Design, EVDO, Mobile videoconferencing, QoS, Reverse Link.
RESUMEN
La transmisión de videoconferencia sobre canales inalámbricos presenta desafíos relevantes en escenarios móviles a velocidades vehiculares. Las contribuciones previas están enfocadas a optimizar la transmisión de aplicaciones multimedia y sensibles al retardo sobre el canal descendente. En este artículo se propone un nuevo esquema de adaptación de parámetros de Calidad de Servicio. Este esquema aplica la técnica del Diseño Entre Capas en el enlace ascendente de un canal 1xEVDO Revisión 0. Como los parámetros del canal inalámbrico y la velocidad del vehículo tienen influencia significativa en la tasa de pérdida de paquetes de capa de red, se propone que la tasa de datos generada por la aplicación se adapte al caudal eficaz ofrecido por las capas inferiores en función de dicha tasa de pérdida de paquetes. Simulaciones del modelo propuesto, muestran una reducción significativa en las pérdidas ocasionadas por las características del canal inalámbrico y la movilidad del vehículo, dando como resultado una mejora en el desempeño de la sesión de videoconferencia móvil.
DESCARGAR ARTÍCULO EN FORMATO PDF
References
[1] Shan, Y., & Zakhor, A. Cross Layer Techniques for Adaptive Video Streaming Over Wireless Networks. Proceedings of the International Conference on Multimedia (ICME '02), 2002, vol. 1, pp. 277280, Lausanne, Switzerland, August. [ Links ]
[2] Stockhammer, T., Hannuksela, M. M., & Wiegand, T. H.264/AVC in Wireless Environments. IEEE transactions On Circuits and Systems For Video Technology, Vol. 13 No. 7, July 2002, pp. 657 673. [ Links ]
[3] Choi, L., Kellerer, W., & Steinbach, E. Cross Layer Optimization for Wireless MultiUser Video Streaming. Proceedings of the International Conference on Image Processing (ICIP '04), 2004, pp. 20472050. Singapore, Republic of Singapore, October. [ Links ]
[4] Choi, L., Ivrlac, M., Steinbach, E., & Nossek, J. Analysis of Distortion Due to Packet Loss in Streaming Video Transmission over Wireless Communications Links. Proceedings of the International Conference on Imaging Processing (ICIP'05), 2005, pp. 189192. Genoa, Italy, September. [ Links ]
[5] Ksentini, A., Naimi, M., & Guéroui, A. (2006). Toward an improvement of H.264 Video Transmission over IEEE 802.11e through a CrossLayer Architecture. IEEE Communications Magazine , Vol. 44 No. 1, January 2006, pp. 107114. [ Links ]
[6] Khan, S., Steinbach, E., Sgroi, M., & Kellerer, W. ApplicationDriven CrossLayer Optimization for Video Streaming over Wireless Networks. IEEE Communications Magazine, Vol. 44 No. 1, January 2006, pp. 122130. [ Links ]
[7] Choi, L.U., Kellerer, W., & Steinbach, E. On CrossLayer Design for Streaming Video Delivery in Multiuser Wireless Environments. EURASIP Journal on Wireless Communications and Networking, Vol. 2006, 2006 , pp. 110. [ Links ]
[8] Yavuz, M., Diaz, S., Kapoor, R., Grob, M., Black, P., Tokgoz, Y., et al. VoIP over cdma2000 1xEVDO Revision A, IEEE Communications Magazine, Vol. 44 No. 2, February 2006, pp. 8895. [ Links ]
[9] Triantafy llopoulou, D., Passas, N., Lampropoulos G., Kaloxylos, A. Joint Application and Physical Layer Adaptation for improved Performance in Wireless Networks, Proc. IEEE International Symposium on Wireless and Pervasive Computing (ISWPC), 2008, pp. 256260, Santorini, Greece, May. [ Links ]
[10] Yoo, S., Jung, S.M., Kim, B.S., Yun, H.Y., Kim, S.R., Kim, D.K. Prototype Design of Mobile Emergency Telemedicine System in LNCS 3481, Springer Berlin / Heidelberg, 2005, pp. 10281034. [ Links ]
[11] Juan, H., Huang, H., Huang, C., Chiang, T. Crosslayer System Designs for Scalable Video Streaming over Mobile WiMAX. Proceedings of the Wireless Communications and Networking Conference, 2007, pp. 18601864, Hong Kong, March. [ Links ]
[12] Olivares O., Automatic QoS parameters adjust in mobile videoconferencing using cross layer design for 3g EVDO wireless networks, Dept. of Elec. and Telecomm., CICESE. Ensenada, Baja California. M. Sc. Dissertation. 2008. [ Links ]
[13] Bhushan, N., Loth, C., Black, P., Attar, R., Jou, Y.C., Fan, M., et al. CDMA2000 1xEVDO Revision A: A Physical Layer and MAC Layer Overview. IEEE Communications Magazine, Vol. 44 No. 2, February 2006, pp. 7587. [ Links ]
[14] Kawadia, V., & Kumar, P. A Cautionary Perspective on CrossLayer Design. IEEE Wireless Communications, Vol. 12 No. 1, 2005, pp. 311. [ Links ]
[15] Goshi, J., Ladner, R., Riskin, E., Mohr, A., Lippman, A. Unequal Loss Protection for H.263 Compressed Video, Data Compression Conference (DCC '03), 2003, pp. 7382, Snowbird, USA, March. [ Links ]