Performance evaluation of error-resilient mechanisms for MPEG-4 video communications over wireless ATM links

2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI:10.1109/PACRIM.2001.953669

F. Delicado, P. Cuenca, L. Orozco-Barbosa, A. Garrido, F. Quiles

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引用次数: 4

Abstract

In the last years, the deployment of wireless networks and the development of multimedia applications have spurred the need for reliable transmission of mixed media information over wireless links. The use of ATM-based wireless links may partially address the need of a communications infrastructure capable of meeting the QoS expectations of a wide variety of applications. The deployment of a reliable and efficient multimedia communications services over wireless links face two major constraints: the limited bandwidth availability of wireless links imposes severe constraints to the deployment o advanced multimedia applications. The second constraint refers to the high error channel rates. For these reasons, the effective transmission of video over a wireless channel requires no only the use of compression techniques capable of reducing the bandwidth demands, but also the use of video compression comprising error resilience capabilities. The ISO MPEG-4 video compression standard has been developed to fulfill these two properties. In this paper, we study the effectiveness of the MPEG-4 compression video standard error resilience techniques over a wireless channel.

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无线ATM链路上MPEG-4视频通信容错机制的性能评估

在过去几年中，无线网络的部署和多媒体应用的发展刺激了通过无线链路可靠地传输混合媒体信息的需求。基于atm的无线链路的使用可以部分地满足通信基础设施的需求，该基础设施能够满足各种应用的QoS期望。在无线链路上部署可靠、高效的多媒体通信业务面临两大制约因素:无线链路有限的可用带宽严重制约了先进多媒体应用的部署。第二个约束是指高错误通道率。由于这些原因，在无线信道上有效地传输视频不仅需要使用能够减少带宽需求的压缩技术，而且还需要使用包含容错能力的视频压缩。ISO MPEG-4视频压缩标准就是为了满足这两个特性而开发的。在本文中，我们研究了MPEG-4压缩视频标准在无线信道上的容错技术的有效性。

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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2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)

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