IoT-RTP and IoT-RTCP: Adaptive Protocols for Multimedia Transmission over Internet of Things Environments
IoT-RTP and IoT-RTCP: Adaptive Protocols for Multimedia Transmission over Internet of Things Environments
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DOI：
10.1109/access.2017.2726902
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发表时间：
2017-01-01
期刊：
影响因子：
3.9
通讯作者：
Al Raddady, Fahad
中科院分区：
文献类型：
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作者：
Said, Omar;Albagory, Yasser;Al Raddady, Fahad
近年来，物联网（IoT）吸引了全世界网络研究人员的兴趣。由于节点的多样性，通过物联网进行多媒体传输是一个重要的挑战。在本文中，自适应版本的实时传输协议（RTP）和实时控制协议（RTCP），即，提出了IoT-RTP和IoT-RTCP。在这些版本中，考虑了物联网环境的性质，例如传输信道异构性，会话大小的突然变化以及不同的多媒体源。所提出的自适应版本的基本思想是将大型多媒体会话划分为简单的会话与网络状态的意识。为了实现这个目标，RTP和RTCP报头中添加了额外的字段。这些字段在某些条件下工作，以减少网络过载。最后，为了测试所提出的IoT-RTP和IoT-RTCP的性能，使用网络仿真包（NS 2）构建了仿真环境。密集的模拟结果证明，所提出的自适应版本的多媒体协议优于基本的端到端的延迟，延迟抖动，接收器报告的数量，数据包丢失，吞吐量和能源消耗。
Recently, the Internet of Things (IoT) has attracted the interest of network researchers all over the world. Multimedia transmission through IoT presents an important challenge owing to nodes diversity. In this paper, adaptive versions of the real-time transport protocol (RTP) and real-time control protocol (RTCP), i.e., IoT-RTP and IoT-RTCP, are proposed. In these versions, the nature of IoT environments, such as transmission channels heterogeneity, sudden change in session size, and different multimedia sources, is considered. The basic idea of the proposed adaptive versions is to divide the large multimedia sessions into simple sessions with awareness of network status. To achieve this target, additional fields are added to the RTP and RTCP headers. These fields work under certain conditions to decrease the network overload. Finally, to test the performance of the proposed IoT-RTP and IoT-RTCP, a simulation environment is constructed using the network simulation package (NS2). The results of intensive simulations proved that the proposed adaptive versions of the multimedia protocols outperform the basic ones in terms of end-to-end delay, delay jitter, number of receiver reports, packet loss, throughput, and energy consumption.