Joint source coding and transmission power management for energy efficient wireless video communications

被引：89

作者：

Eisenberg, Y ^{[1
]}

Luna, CE ^{[1
]}

Pappas, TN ^{[1
]}

Berry, R ^{[1
]}

Katsaggelos, AK ^{[1
]}

机构：

[1] Northwestern Univ, Dept Elect & Comp Engn, Evanston, IL 60208 USA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY | 2002年 / 12卷 / 06期

关键词：

error concealment; error resilience; expected distortion; optimal mode selection; power and rate control;

D O I：

10.1109/TCSVT.2002.800309

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We consider a situation where a video sequence is to be compressed and transmitted over a wireless channel. Our goal Is to limit the amount of distortion in the received video sequence, while minimizing transmission energy. To accomplish this goal, we consider error resilience and concealment techniques at the source coding level, and transmission power management at the physical layer. We jointly consider these approaches in a novel framework. In this setting, we formulate and solve an optimization problem that corresponds to minimizing the energy required to transmit video under distortion and delay constraints. Experimental results show that simultaneously adjusting the source coding and transmission power is more energy efficient than considering these factors separately.

引用

页码：411 / 424

页数：14

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