Proposal for a cross layer scheme for real-time wireless video

作     者：JEYARAJ Arulsaravana CHENG Liang EL ZARKI Magda 

作者机构：EECS Department the Henry Samueli School of Engineering University of California Irvine CA-92697 USA NVIDIA Corporation Santa Clara California CA-95050 USA CS Department DonaM Bren School of lnformation ＆ Computer Sciences University of California Irvine CA-92697 USA 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2006年第7卷第10期

页      码：1690-1694页

摘      要：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.

主 题 词：MIMO V-BLAST Adaptive modulation Diversity Constant bit rate (CBR) Cross layer design Power control Fine granular scalability (FGS) 

学科分类：0810[工学-土木类] 08[工学] 081001[081001] 

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