An Implementation and Evaluation of a Selective QoS-aware Mobile Multicasting on Multiple Wireless Networks
An Implementation and Evaluation of a Selective QoS-aware Mobile Multicasting on Multiple Wireless Networks
复制标题
多无线网络上选择性QoS感知移动组播的实现与评估
DOI：
10.1109/icmu.2014.6799093
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Kaori Maeda
中科院分区：
文献类型：
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作者：
Tohru Kondo;Akiyuki Yokoyama;Kaori Maeda
随着无线网络的迅速普及，互联网用户需要稳定的、自适应的通信环境。IP多播可以提供一种将内容分发到多个目的地的有效方法，并且可以在部署IP网络的无线环境中使用。在宽带无线网络的情况下，移动视频流服务是有吸引力的服务之一。但是，由于无线网络中的IP组播不支持MAC层的重传过程，因此需要在上层提供QoS机制。另一方面，大多数移动设备都能够配备多个无线接口来动态连接可用的网络。因此，本研究提出了选择性qos感知组播流，该流结合了IP组播和IP单播的混合通信和使用多个接口的ARQ过程。该机制在异构环境下动态选择面向用户的QoS方法的同时提供了可持续的流。我们设计并实现了它的原型系统，并将其与一个实时流应用程序集成。仿真分析表明了该方法的有效性和可扩展性，并通过原型系统进行了传输实验，验证了应用服务质量的提高。
With rapid spread of wireless networks, the Internet users require stable and adaptive communication environment everywhere. IP multicasting can provide an efficient method to distribute contents to multiple destinations, and it can be used on a wireless environment with a deployment of IP networks. In the case of broadband wireless networks, a mobile video streaming service are one of attractive services. However, since IP multicast on wireless network does not support retransmission procedures on the MAC layer, any QoS mechanism is required in upper layers. On the other hand, most mobile devices are able to equip multiple wireless interfaces to connect available network dynamically. In this study, therefore, we propose selective QoS-aware multicast streaming which is combined hybrid communication (IP multicast and IP unicast) and ARQ procedure using multiple interfaces. The proposed mechanism provides sustainable streaming while selecting an user-oriented QoS method dynamically on heterogeneous environment. We design and implement its prototype system, and integrate it with a realtime streaming application. Simulation analysis shows the effectiveness and scalability of a proposed method, and some transmission experiments by the prototype system demonstrate improvement of application QoS.