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Proposal for the Validation of the Video Quality of IPTV Service Eng. Luis Enrique Conde del Oso. Telephone: 537 2666825 Mobile 53.

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Presentation on theme: "Proposal for the Validation of the Video Quality of IPTV Service Eng. Luis Enrique Conde del Oso. Telephone: 537 2666825 Mobile 53."— Presentation transcript:

1 Proposal for the Validation of the Video Quality of IPTV Service Eng. Luis Enrique Conde del Oso. Telephone: Mobile

2 Background. Current scenario of Telecom Carriers 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. Proposal of Development 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). Beginning of the scheduled development

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

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

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. BRASPE IP/MPLS ARBRASPEAR METRO REGIONAL Service PoP METRO PROVINCIAL ADM Eth/SDH Source: VPDT. ETECSA. E1 STMn FE GE Platform of IPTV VoD

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

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

11 State of the art of validation Metrics for video quality. Métricas (VQM) Métricas Subjetivas BT (Imágenes de TV). P.910 (Aplic. de Multimedia), Calidad de video. P.911 (Aplic. de Multimedia), Calidad Audiovisual. Comparación Implícita (DSCQS). Comparación Explícita (DSIS) Valoraciones Absolutas (SSCQE) Valoraciones con Categoría Absoluta (ACR). Métricas Objetivas Ref. Completa. Ref. Reducida. Sin Referencia. Métricas de Imágenes Análisis de la Información visual contenida. VHS Metric. (Aspectos de la visión Humana) Métricas Datos Análisis de Videos Decodificados. MSE PSNR (Evaluación de Paquetes) Métricas Flujos de Video 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. Correlación

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

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

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

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

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

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

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

21 Conclusions The introduction of Ethernet Metro networks in ETECSA constitutes the main core for the development of ETECSAs 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 ETECSAs 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 The application of probes with T-Factor metric can be enlarged to quality validation of TDT and 3G mobile systems.

22 In line with the world… Anniversary


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