| 基于中继的OFDMA网络中可扩展编码视频流传输的权衡优化(英文) |
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| 引用本文： | 由磊,Wei XIANG,侯春萍,雷建军,侯永宏.基于中继的OFDMA网络中可扩展编码视频流传输的权衡优化(英文)[J].中国通信学报,2013,10(5):99-113. |
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| 作者姓名： | 由磊 Wei XIANG 侯春萍 雷建军 侯永宏 |
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| 作者单位： | School of Electronic and Information Engineering, Tianjin University;Faculty of Engineering and Surveying, University of Southern Queensland |
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| 基金项目： | partially supported by the National Natural Science Foundation of China under Grants No. 610202380, No. 60932007;Major Program of National Natural Science Foundation of China under Grant No. 60932007;Tianjin Research Program of Application Foundation and Advanced Technology under Grant No. 12JCQNJC00300;Research Fund for the Doctoral Program of Higher Education of China under Grant No. 20110032120029;the Innovation Foundation of Tianjin University |
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| 摘 要： | To achieve an optimal trade-off between video quality and energy efficiency in the uplink streaming of multi-user Scalable Video Coding (SVC) videos in relay-based Orthogonal Frequency Division Multiple Access (OFDMA) cellular networks, a cross-layer design framework that jointly selects the Transmission Policy (TP) for SVC video frames, assigns OFDMA subcarriers, and allocates power for each subcarrier is proposed. We apply the dual decomposition method to the problem, and obtain a TP selection subproblem for each SVC video adaptation and a resource allocation subproblem of Joint Subcarrier, Relay and Power Allocation (JSRPA). A second level of dual decomposition is used to divide the JSRPA problem into independent subcarrier subproblems. The proposed Crosslayer Trade-off Optimization (CTO) algorithm is sub-distributed with significantly low complexity. A performance evaluation with typical SVC video traces demonstrates that the proposed algorithm is able to converge and efficiently achieve the optimal trade-off between the video quality and energy consumption at the MSs for uplink SVC streaming.
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| 关 键 词： | video streaming cross-layer tradeoff optimization dual decomposition scalable video coding OFDMA relay |
| 收稿时间： | 2012-09-26; |
Trade-off Optimization for Scalable Video Coding Streaming in Relay-Based OFDMA Networks |
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| YOU Lei,Wei XIANG,HOU Chunping,LEI Jianjun,HOU Yonghong.Trade-off Optimization for Scalable Video Coding Streaming in Relay-Based OFDMA Networks[J].China communications magazine,2013,10(5):99-113. |
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| Authors: | YOU Lei Wei XIANG HOU Chunping LEI Jianjun HOU Yonghong |
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| Affiliation: | School of Electronic and Information Engineering, Tianjin University, Tianjin 300072, China
Faculty of Engineering and Surveying, University of Southern Queensland, Toowoomba, QLD 4350, Australia |
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| Abstract: | To achieve an optimal trade-off between video quality and energy efficiency in the uplink streaming of multi-user Scalable Video Coding (SVC) videos in relay-based Orthogonal Frequency Division Multiple Ac-cess (OFDMA) cellular networks, a cross-layer design framework that jointly selects the Transmission Policy (TP) for SVC video frames, assigns OFDMA subcarriers, and al-locates power for each subcarrier is proposed. We apply the dual decomposition method to the problem, and obtain a TP selection sub-problem for each SVC video adaptation and a resource allocation subproblem of Joint Subcarrier, Relay and Power Allocation (JSRPA). A second level of dual decomposi-tion is used to divide the JSRPA problem into independent subcarrier subproblems. The proposed Cross- layer Trade-off Optimization (CTO) algorithm is sub-distributed with significantly low complexity. A performance evaluation with typical SVC video traces demonstrates that the proposed algorithm is able to converge and efficiently achieve the optimal trade-off between the video quality and energy consumption at the MSs for uplink SVC streaming. |
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| Keywords: | video streaming cross-layer trade- off optimization dual decomposition scalable video coding OFDMA relay |
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