Delivering audiovisual content with MPEG-21-enabled cross-layer QoS adaptation  

作　　者：AHMED Toufik DJAMA Ismail 

机构地区：[1]CNRS-LaBRI Laboratory University of Bordeaux-1.351 Cours de la Libération, Talence F-33405, France

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2006年第5期784-793,共10页浙江大学学报（英文版）A辑（应用物理与工程）

摘　　要：Future multimedia communication systems have to support the user’s needs, the terminal capabilities, the content specification and the underlying networking technologies. The related protocols and applications must be designed from this integration perspective in a cross-layer centric manner. In this paper, we propose an implementation of a streaming service (e.g., Television over IP service) with a unified QoS management concept that enables an IP driven integration of different system components (terminal, user, content, and network). The MPEG-21 framework is used to provide a common support for imple- menting and managing the end-to-end QoS. The main focus of this paper is on the architecture design, protocols specification and implementation evaluation. Performance evaluations using PSNR and SSIM objective video quality metrics show the benefit of the proposed MPEG-21-enabled cross-layer adaptation.Future multimedia communication systems have to support the user’s needs, the terminal capabilities, the content specification and the underlying networking technologies. The related protocols and applications must be designed from this integration perspective in a cross-layer centric manner. In this paper, we propose an implementation of a streaming service (e.g., Television over IP service) with a unified QoS management concept that enables an IP driven integration of different system components (terminal, user, content, and network). The MPEG-21 framework is used to provide a common support for imple- menting and managing the end-to-end QoS. The main focus of this paper is on the architecture design, protocols specification and implementation evaluation. Performance evaluations using PSNR and SSIM objective video quality metrics show the benefit of the proposed MPEG-21-enabled cross-layer adaptation.

关 键 词：CROSS-LAYER adaptation  MPEG-21 MULTIMEDIA framework  Real-time streaming  QoS 

分 类 号：TN919.8[电子电信—通信与信息系统]