Conference Paper

Modeling Video Traffic from Multiplexed H.264 Videoconference Streams

Dept. of Electron. & Comput. Eng., Tech. Univ. of Crete, Chania
DOI: 10.1109/GLOCOM.2008.ECP.289 Conference: Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Source: IEEE Xplore

ABSTRACT Due to the burstiness of video traffic, video modeling is very important in order to evaluate the performance of future wired and wireless networks. In this paper, we investigate the possibility of modeling H.264 videoconference traffic with well-known distributions. Our results regarding the behavior of single videoconference traces provide significant insight and help to build a Discrete Autoregressive (DAR(1)) model to capture the behavior of multiplexed H.264 videoconference movies from VBR coders.

  • [Show abstract] [Hide abstract]
    ABSTRACT: The emergence of social activities on the Internet in conjunction with the popularization of multimedia services has facilitated the development of collaborative services for Social TV. Interactive services with multimedia contents are critical because of the high consumption of resources in the communication networks. For this reason, interactive games for the Social TV pose an important test in order to evaluate the performance of these collaborative services over IP-based networks. We have designed a multiuser interactive game based on answering questions with bidirectional data, audio and video. The traffic generated has been analyzed, statistically characterized and used to develop and validate a simulation model of the online game. Results of the simulation demonstrate the accuracy of the designed model and the high consumption of network resources of the service in massive deployments with a high number of active users. The proposed model can be used to evaluate both service performance, and resources consumption in heterogeneous networks, with different policies of content distribution in massive deployments of the online game service. The integration of the simulation model with the real TV service will also allow us to evaluate the quality of experience of the users in hybrid scenarios of emulation.
    Telecommunication Systems 12/2014; DOI:10.1007/s11235-014-9940-1 · 1.16 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: We survey twenty years of research literature on video frame size forecasting. We organize the discussion of the literature using model type and model parameters as a taxonomy. We discuss how to use video frame size forecasts to forecast video bandwidth requirements. We provide extensive comparisons of forecast accuracy among the various mechanisms using data extracted from the literature and a set of common experiments we conducted. Lastly, we summarize our findings with respect to forecast accuracy and we identify open areas for research.
    IEEE Communications Surveys &amp Tutorials 01/2013; 15(4):1803-1818. DOI:10.1109/SURV.2013.032213.00091 · 6.49 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Optical and wireless network technologies are expected to converge in the near to midterm, giving rise to bimodal fiber-wireless (FiWi) broadband access networks. In triple-play (voice, video, and data) service scenarios for such FiWi access networks, video traffic will likely dominate due to the widely predicted increase in video network services and the high traffic volume of compressed video compared to voice and data services. In this paper, we introduce and evaluate a comprehensive video MAC protocol (VMP) to efficiently deliver prerecorded video downstream to wireless consumers over a FiWi network in the presence of voice and data upstream and downstream traffic. VMP consists of three main novel components: (i) frame fragmentation in conjunction with hierarchical frame aggregation for efficient MAC frame transport over the integrated optical and wireless network segments, (ii) multi-polling medium access control for upstream voice and data packets and acknowledgements for downstream video packets, and (iii) prefetching of video frames over the optical and wireless network segments in conjunction with hybrid reservation/contention-based medium access. Our simulation results indicate that VMP achieves significant improvements in throughput-delay performance for all three traffic types as well as reductions in the playback starvation probability for video traffic compared to existing state-of-the-art MAC mechanisms.
    IEEE Transactions on Broadcasting 09/2012; 58(3):440-453. DOI:10.1109/TBC.2012.2191692 · 2.65 Impact Factor

Full-text (3 Sources)

Available from
May 27, 2014