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“ Proposal for the Validation of the Video Quality of IPTV Service ”

“ Proposal for the Validation of the Video Quality of IPTV Service ”. Eng. Luis Enrique Conde del Oso. luis.conde@etecsa.cu Telephone : 537 2666825 Mobile 53 52884472. Background. Obsolescence of TDM Technology. Requirements for new services and increase of the current services.

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“ Proposal for the Validation of the Video Quality of IPTV Service ”

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  1. “Proposal for the Validation of the Video Quality of IPTV Service” Eng. Luis Enrique Conde del Oso. luis.conde@etecsa.cu Telephone: 537 2666825 Mobile 53 52884472

  2. Background. • Obsolescence of TDM Technology. • Requirements for new services and increase of the current services. • - Fixed telephone service growth. • - Mobile service growth • - Wide development of data services. • - Introduction of novel services such as IPTV. Current scenario of Telecom Carriers • Development of Services on NGN networks with NAM (GIE). • Optimization of National Transport Network IP/MPLS. • Designs and implementation of Local and Regional Metro • Networks. • Introduction of the objective quality validation of services in real • time (and its extension to quality profile of telecommunications • network). Proposal of Development Beginning of the scheduled development

  3. Different levels of a NGN Network. ADM ADM ADM ADM ADM ADM E1 STMn FE GE IP/MPLS AR BRAS PE AR BRAS PE VoD VoD Service PoP Service PoP METRO REGIONAL VoD METRO PROVINCIAL Eth/SDH Source: VPDT. ETECSA.

  4. Technical Requirements for Packet Transport Network Level of PTN Equipment: Characteristics: Interfaces:

  5. Technical Requirements for Packet Transport Network Transport:

  6. Technical Requirements for Packet Transport Network Quality of Service Characteristics Carrier Class Synchronization

  7. Technical Requirements for Packet Transport Network Standards for NGN Equipment Minimal necessary interfaces

  8. IPTV Service proposed at the different levels of a NGN Network. ADM ADM ADM ADM ADM ADM E1 STMn FE GE IP/MPLS AR BRAS PE AR BRAS PE VoD Platform of IPTV VoD Service PoP Service PoP METRO REGIONAL VoD METRO PROVINCIAL Eth/SDH Source: VPDT. ETECSA.

  9. QoE and QoS. Human Vision Constraints Perceived Quality (QoE) STB influence Quality dependence of the Service SLA SLA SLA Network Quality (QoS) Source: VPDT. ETECSA.

  10. (Encrypted Signal) Punto 3 Validación Punto 2 Validación Punto 1 Validación Pseudo ring Ethernet Serv POP 1 Serv POP 2 Pseudo ring Ethernet DWDM Serv POP 4 Serv POP 3 Pseudo anillo Ethernet IPTV Head End (No Encrypted signal) (Encrypted Signal) • Proposal of validation points of IPTV quality service. Source: VPDT. ETECSA.

  11. ITU-T Métricas (VQM) BT.500.11 (Imágenes de TV). P.910 (Aplic. de Multimedia), Calidad de video. P.911 (Aplic. de Multimedia), Calidad Audiovisual. Métricas Subjetivas MOS Correlación Comparación Implícita (DSCQS). Comparación Explícita (DSIS) Valoraciones Absolutas (SSCQE) Valoraciones con Categoría Absoluta (ACR). Ref. Completa. Ref. Reducida. Sin Referencia. Métricas Objetivas Métricas de Imágenes Métricas Flujos de Video Métricas Datos • T- Factor (Profunda Inspección del flujo del Video (TS y UDP) Depende del Codec y muestra el impacto de los disturbios de la Red en las pérdidas y su propagación (espacial y temporal). • MDI (Ligera Inspección del flujo del Video (TS y UDP) Independiente del Codec Red IP. • Análisis de Videos • Decodificados. • MSE • PSNR • (Evaluación de Paquetes) • Análisis de la Información • visual contenida. • VHS Metric. • (Aspectos de la visión Humana) • State of the art of validation Metrics for video quality.

  12. FreeProbe with T- Factor Metric FreeProbe with MDI Metric • Windows (GUI) of FreeProbe (Metric T-Factor) and FreeProbe (Metric MDI). Fuente Telecom Italia - VPDT. ETECSA.

  13. Pilot Test using FreeProbe (T-Factor), a simulation of Orange solution. Source: VPDT. ETECSA.

  14. IPTV Service Test Model applied at ETECSA laboratories. Source: VPDT. ETECSA.

  15. Test Results of FreeProbe (Metric MDI). ETECSA’s Intranet vs BPL. ETECSA’s Domestic Intranet VLAN QoS Best effort VLAN 10 VLAN 20 VLAN 30 Source: VPDT. ETECSA.

  16. Tests using NetDisturb in the testing model and classification of the subjective quality experienced by the end user Video Server NetDisturb Fuente VPDT. ETECSA. Source: Telecom Italia – VPDT ETECSA.

  17. Test results done in the testing model (Channel SD to 4 Mbps) Source: Telecom Italia - VPDT. ETECSA.

  18. Original video VS Original video with 1% Packet Loss Rate. • Video with 1% Packet Loss Rate. • Original Video.

  19. FreeProbe FreeProbe FreeProbe • Centralization of QoE Validationwith FreeProbe to substitute solutions with Shadow Router. (Cisco, Tektronix, JDSU) FreeProbe Server SNMP SNMP SNMP Metric MDI Pseudo ring Ethernet Serv POP 1 Serv POP 2 Pseudo ring Ethernet DWDM Serv POP 4 Serv POP 3 CUB Pseudo ring Ethernet IPTV Head End Metric MDI Measurement point Data collect Source: Telecom Italia - VPDT. ETECSA. Metric T-Factor

  20. Quality Profile on networks, according to the following ITU-T Recommendations G.1050, TIA-921 and ITU-T Y.1541 Source: UIT-T. • DSL Forum's WT-126 • SD. 1 paq./perd cada 30 minutos. • (MLR=0.004 paq/seg) • HD 1paq./perd. cada 4 horas • (MLR=0.0005 paq/seg) Source: DSL Forum's WT-126 Fuente Spirent.

  21. Conclusions The introduction of Ethernet Metro networks in ETECSA constitutes the main core for the development of ETECSA’s target network guarantying the growing requested by the MIC in the triennium, as well as the incorporation of new services like IPTV. The experiences on IPTV services validation in Telecom Italia using Free Probe has been the starting point of valuable research experiences carried out in ETECSA together with the development and programming of an IPTV service platform used in this telecom company. It was done as from the study of the VideoLAN software code source which reduced the cost of research stage. The proposal of using Free Probe to validate the quality profile of ETECSA’s IP network makes it an important alternative for the expensive purchase of Shadow Router dedicated to this unique function that can be extended to other services in real time like VoIP with an adaptation of the MDI metric. The fulfillment of the recommendations made at the DSL Forum WT-126 is the base of IPTV quality service in SD and HD formats, for which networks must meet the quality profile according to UIT-T Y 1541. The application of probes with T-Factor metric can be enlarged to quality validation of TDT and 3G mobile systems.

  22. 16Anniversary 1994 - 2010 Thank you for your attention In line with the world…

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