| Proposal for a cross layer scheme for real-time wireless video |
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| 作者姓名： | JEYARAJ Arulsaravana CHENG Liang EL ZARKI Magda |
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| 作者单位： | [1]EECS Department, the Henry Samueli School of Engineering, University of California, Irvine, CA-92697, USA [2]NVIDIA Corporation, Santa Clara, California, CA-95050, USA [3]CS Department, DonaM Bren School of lnformation ＆ Computer Sciences, University of California, Irvine, CA-92697, USA |
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| 摘 要： | INTRODUCTION Increase in wireless system capacity through 3G services and innovative low bit rate video coding techniques have made it possible to have mobile multimedia services on hand-held systems. High quality real-time multimedia services are slowly be- ing deployed on hand-held systems. However large scale deployment at low cost is still to be realized due to technological challenges such as stringent power control under severely fading environments and the susceptibility of high qu…
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| 关 键 词： | CBR MIMO 自适应调制 多样性交换层设计 功率控制 V-BLAST FGS |
| 收稿时间： | 2005-12-05 |
| 修稿时间： | 2006-02-25 |
Proposal for a cross layer scheme for real-time wireless video |
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| JEYARAJ Arulsaravana CHENG Liang EL ZARKI Magda.Proposal for a cross layer scheme for real-time wireless video[J].Journal of Zhejiang University Science,2006,7(10):1690-1694. |
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| Authors: | Arulsaravana Jeyaraj Liang Cheng Magda El Zarki |
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| Institution: | (1) EECS Department, the Henry Samueli School of Engineering, University of California, Irvine, CA 92697, USA;(2) NVIDIA Corporation, Santa Clara, California, CA 95050, USA;(3) CS Department, Donald Bren School of Information & Computer Sciences, University of California, Irvine, CA 92697, USA |
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| Abstract: | This paper focuses on the design of the cross layer between the video application layer and the MIMO physical layer. MIMO physical layer research has promised an enormous increase in the capacity of wireless communication systems. Also MIMO wireless systems operate under fading conditions where the channel faces arbitrary fluctuations. Since the wireless channel changes over each coherence period, the capacity of the wireless channel, given the power constraints, changes. Hence to make efficient use of the available capacity one needs to adapt the video bit rate. However it is impossible to adapt at the application layer as changing the parameters of the video takes more time than the coherence period of the channel. In this paper we address this problem through a novel solution and also investigate its performance through a simulation study. |
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| Keywords: | MIMO V-BLAST Adaptive modulation Diversity Constant bit rate (CBR) Cross layer design Power control Fine granular scalability (FGS) |
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