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A quality of experience handover architecture for heterogeneous mobile wireless multimedia networks

机译：异构移动无线多媒体网络的体验质量切换架构

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摘要

The convergence of emerging real-time multimedia services, the increasing coverage of high-speed wireless networks, and the evergrowing popularity of mobile devices are leading to an era of user-centric multimedia wireless services. In this scenario, heterogeneous wireless communications will coexist and ensure that the end user is always best connected. However, the quality of experience supported for highquality applications in multi-operator environments remains a significant challenge and is crucial for the success of wireless multimedia systems. This article proposes a quality of experience handover architecture for heterogeneous mobile wireless multimedia networks. The architecture extends the media independent handover/ IEEE 802.21 proposal with QoE-aware seamless mobility, video quality estimator, dynamic class of service mapping, and a set of content adaptation schemes. The proposed architecture always provides the best connection and considers the QoE needs of mobile clients and available wireless resources in IEEE 802.11e and IEEE 802.16e service classes. Simulation experiments were performed to show the impact and benefits of the proposed solution from the user??s perception, by using both objective and subjective QoE metrics.
机译：新兴的实时多媒体服务的融合，高速无线网络的覆盖范围日益扩大以及移动设备的日渐普及，正引领着以用户为中心的多媒体无线服务时代。在这种情况下，异构无线通信将共存并确保最终用户始终处于最佳连接状态。但是，在多运营商环境中为高质量应用程序提供支持的体验质量仍然是一项重大挑战，对于无线多媒体系统的成功至关重要。本文提出了一种用于异构移动无线多媒体网络的体验质量切换架构。该体系结构通过支持QoE的无缝移动性，视频质量估计器，动态服务类映射和一组内容自适应方案，扩展了媒体独立切换/ IEEE 802.21提议。所提出的体系结构始终提供最佳连接，并考虑了移动客户端的QoE需求以及IEEE 802.11e和IEEE 802.16e服务类别中的可用无线资源。通过使用客观QoE和主观QoE指标，进行了仿真实验，从用户的角度展示了所提出解决方案的影响和优势。

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