QoS Support for Multi-user Sessions in IP-based Next Generation Networks
QoS Support for Multi-user Sessions in IP-based Next Generation Networks
复制标题
基于 IP 的下一代网络中多用户会话的 QoS 支持
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
P. Mendes
中科院分区：
文献类型：
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作者：
E. Cerqueira;Luis Veloso;A. Neto;M. Curado;E. Monteiro;P. Mendes
多媒体质量水平、移动性和网络资源分配的组合控制对于下一代移动网络的成功至关重要。在此背景下，本文提出了多用户会话控制 (MUSC) 解决方案，用于控制多用户共享的多媒体会话的质量级别，为异构和移动网络上的这些会话提供服务质量 (QoS) 映射和 QoS 自适应。 MUSC使用自组织原理来协调QoS映射和QoS适应机制与移动性和资源分配控制器，允许会话适应当前的网络条件，并动态选择合适的网络服务类别来映射会话。 MUSC 最大限度地降低阻塞概率，优化网络资源的使用，并使会话保持可接受的体验质量。在模拟和实验环境中对 MUSC 进行了评估，以分析 QoS 感知移动场景中会话的收敛时间、会话阻塞百分比以及延迟、吞吐量、峰值信噪比 (PSNR)、平均选项得分 (MOS) 和结构相似性指数 (SSIM)。
A combined control of multimedia quality level, mobility and allocation of network resources is essential for the success of next generation mobile networks. In this context, this article presents the Multi-user Session Control (MUSC) solution to control the quality level of multimedia sessions shared by multiple-users, providing Quality of Service (QoS) mapping and QoS adaptation for those sessions over heterogeneous and mobile networks. MUSC uses the self-organized principle to coordinate QoS mapping and QoS adaptation mechanisms with mobility and resource allocation controllers, allowing the adaptation of a session to the current network conditions and the dynamic selection of the suitable network service class to map the session. MUSC minimizes the blocking probability, optimizes the usage of network resources and keeps sessions with an acceptable quality of experience. MUSC was evaluated in a simulation and in an experimental environment to analyze its convergence time, percentage of session blocking as well as delay, throughput, Peak Signal-to-Noise Ratio (PSNR), Mean Option Scores (MOS) and Structural Similarity Index (SSIM) of sessions in QoS-aware mobile scenarios.