Cross layer implementation with multiple descriptive coding to support video streaming in IEEE 802.11e networks

A. Srinivasan, L. Raj, Dhananjay Kumar
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引用次数: 1

Abstract

The emergence of different wireless LAN technologies has called for the implementation of various services such as multimedia streaming over these networks. The use of Wireless LANs has changed from simple data transfer to transmission of delay sensitive and bandwidth intense applications like multimedia streaming. The provision of Quality of Service for multiple simultaneous users is a challenge. Multiple Descriptive Coding (MDC) allows to efficiently stream video over variable bit rate channel. In this paper, we use cross layer design with MDC to provide a solution to this challenge. By formulating the network functions such as encoder behavior and MAC scheduling in cross layers can be jointly optimized to provide the best video quality. Our Simulation results shows a improved PSNR, while maintaining upper bound on QoS parameter delay and jitter.
采用多种描述性编码的跨层实现,支持IEEE 802.11e网络中的视频流
不同无线局域网技术的出现要求在这些网络上实现各种服务,如多媒体流。无线局域网的使用已经从简单的数据传输转变为传输对延迟敏感和带宽密集的应用,如多媒体流。为多个同时用户提供服务质量是一个挑战。多描述编码(MDC)允许在可变比特率信道上高效地传输视频。在本文中,我们使用MDC的跨层设计来解决这个问题。通过制定跨层编码器行为和MAC调度等网络功能,可以共同优化以提供最佳的视频质量。仿真结果表明,在保持QoS参数延迟和抖动上界的前提下,改进了PSNR。
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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