TINA-based environment for mobile multimedia services

A. Pinto, E. J. Oliveira, L. Faina, E. Cardozo
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引用次数: 1

Abstract

This paper discusses how mobility can be incorporated into TINA services. Mobility in this context is the ability to transfer a session from one terminal to another without disrupting the service. The design, implementation and example of use of a "mobility-aware" TINA distributed processing environment (DPE) is detailed in the paper. The DPE is built over commercial software products and offers two basic facilities from which TINA services can be built: life-cycle and stream facilities. Life-cycle facilities allow distributed objects to be deployed and managed transparently while stream facilities allow multimedia channels to be established among service components. Life-cycle facilities are implemented according to the reference model for open distributed processing (RM-ODP). Stream facilities are based on the Object Management Group's media streaming framework "control and management of audio/video streams (A/V streams)". Mobility in our DPE is implemented at the cluster level as prescribed by RM-ODP. An extension of the A/V streams framework is proposed in order to re-establish the media flows after cluster migration. Finally, a TINA-based mobile multimedia service is built over life-cycle and stream facilities using TINA service architecture concepts and guidelines.
基于tina的移动多媒体服务环境
本文讨论了如何将移动性纳入TINA服务。在这种情况下,移动性是指在不中断服务的情况下将会话从一个终端传输到另一个终端的能力。本文详细介绍了“移动感知”TINA分布式处理环境(DPE)的设计、实现和使用实例。DPE建立在商业软件产品之上,并提供两种基本设施,TINA服务可以从这些设施中构建:生命周期和流设施。生命周期设施允许透明地部署和管理分布式对象,而流设施允许在服务组件之间建立多媒体通道。生命周期设施是根据开放分布式处理(RM-ODP)的参考模型实现的。流设施基于对象管理组的媒体流框架“音频/视频流(A/V流)的控制和管理”。我们的DPE中的移动性是按照RM-ODP的规定在集群级别实现的。为了在集群迁移后重新建立媒体流,提出了一种扩展的A/V流框架。最后,利用TINA服务体系结构概念和指南,在生命周期和流设施上构建了基于TINA的移动多媒体服务。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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