Network-Adaptive Multipath Video Delivery over Wireless Multimedia Sensor Networks Based on Packet and Path Priority Scheduling

Amir Rastegar Lari, B. Akbari
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引用次数: 22

Abstract

in this paper we investigate multi-path transmission of video over Wireless Multimedia Sensor Networks (WMSNs). Our objective is to provide a transmission mechanism to improve the video quality perceived at the receiver while considering energy, bandwidth and delay constraints of the network. Our approach is based on packet and path priority scheduling in multipath video transmission over WMSN. Video packets are classified according to their types and more important packets are transmitted through paths with better conditions. Path conditions are evaluated by a score mechanism using variant parameters such as free buffer size, energy, hop count and packet loss. Since path conditions are changed over time, our proposed scheme updates path conditions and adapting packet scheduling accordingly. Simulation analysis of the proposed video transmission scheme shows its efficiency in increasing perceived video quality at the receiver.
基于分组和路径优先级调度的无线多媒体传感器网络自适应多路径视频传输
本文研究了无线多媒体传感器网络(WMSNs)上视频的多路径传输。我们的目标是提供一种传输机制,在考虑网络的能量、带宽和延迟约束的情况下,提高接收端感知到的视频质量。我们的方法是基于WMSN上多路径视频传输的分组和路径优先级调度。根据视频报文的类型进行分类,更重要的报文通过条件更好的路径传输。路径条件通过使用可变参数(如空闲缓冲区大小、能量、跳数和包丢失)的评分机制进行评估。由于路径条件随时间变化,我们提出的方案更新路径条件并相应地调整数据包调度。对所提出的视频传输方案进行了仿真分析,结果表明该方案在提高接收端感知视频质量方面是有效的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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