Heterogeneous networks offer a wide range of multimedia services, such as entertainment, advertising, and video conferences. In this multimedia scenario, users can access video content via heterogeneous wireless networks, such as LTE macro and small cells. Users also expect to receive real-time videos with Quality of Experience (QoE) support, which is a challenging task due to the great diversity of radio base stations in such heterogeneous environments. In this article, we introduce a Quality of Service (QoS-)/QoE- and Radio-aware (SER) handover management algorithm for heterogeneous networks to provide video dissemination with QoS/QoE support. SER algorithm considers the analytic hierarchy process (AHP) to adjust the degree of importance of each criterion in order to select the appropriate radio base station that the mobile node must connect, allowing efficient handover decision making for video transmission with high user experience. Simulation results show that the SER algorithm delivered videos with significant improvement on QoE than existing handover algorithms.

中文翻译：

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异构网络中视频传输的体验质量和服务感知切换质量

异构网络提供广泛的多媒体服务，例如娱乐、广告和视频会议。在这种多媒体场景中，用户可以通过异构无线网络访问视频内容，例如 LTE 宏和小基站。用户还希望接收具有体验质量 (QoE) 支持的实时视频，这是一项具有挑战性的任务，因为在这种异构环境中无线电基站具有极大的多样性。在本文中，我们介绍了一种用于异构网络的服务质量 (QoS)/QoE 和无线电感知 (SER) 切换管理算法，以提供具有 QoS/QoE 支持的视频传播。SER算法考虑层次分析法（AHP）来调整每个标准的重要程度，以选择移动节点必须连接的合适的无线电基站，允许对具有高用户体验的视频传输进行高效的切换决策。仿真结果表明，与现有切换算法相比，SER 算法交付的视频在 QoE 上有显着改善。