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A Novel JSCC Framework With diversity-multiplexing-coding gain tradeoff for Scalable Video Transmission Over Cooperative MIMO

引用

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 2010年第7期20卷 994-1006页

作者： Xiao, Hongjiang Dai, Qionghai Ji, Xiangyang Zhu, Wenwu Tsinghua Univ Dept Automat Beijing 100084 Peoples R China Microsoft Res Asia Beijing 100080 Peoples R China

The multiple-input-multiple-output (MIMO) and cooperative communication are two state-of-the-art techniques to provide high-rate high-quality video communication services. By taking advantage of both techniques, this paper presents a novel joint source-channel coding (JSCC) framework for scalable video transmission over cooperative MIMO. In this framework, we first propose a cooperative MIMO architecture, which employs macro-micro power control strategy as a relaying protocol to determine the on/off mode of relays and the specific power allocation among them either by equal power amplification or by cooperative beamforming. Then, an unequal error protection structure is proposed to protect the video layers with different importance levels by concatenating the rate-variable low-density parity-check codes and diversity-embedded space-time block codes. Moreover, for the purpose of channel adaptation, the switch of space-time codes is designed to achieve different diversity and multiplexing tradeoff points. Finally, the JSCC algorithm integrated with diversity-multiplexing-coding gain tradeoff is proposed to optimize the resources of cooperative system to improve the transmission quality of scalable video. Experimental results demonstrate the effectiveness of our proposed schemes.

关键词： Cooperative beamforming (CBF) cooperative MIMO diversity-multiplexing-coding gain tradeoff joint source-channel coding (JSCC) scalable video

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JOINT RESOURCES ALLOCATION FOR COOPERATIVE VIDEO TRANSMISSION

JOINT RESOURCES ALLOCATION FOR COOPERATIVE VIDEO TRANSMISSIO...

引用

16th IEEE International Conference on Image Processing

作者： Xiao, Hongjiang Dai, Qionghai Ji, Xiangyang Tsinghua Univ Dept Automat Beijing 100084 Peoples R China

ISBN: (纸本)9781424456536

This paper proposes a cooperative multiple-input multiple-output (MIMO) architecture to transmit the video reliably. By exploring the configurable resources of the scalable video and the coded MIMO system, we further propose a novel joint source-channel coding (JSCC) framework with optimal tradeoff among diversity, multiplexing and coding gains. In this framework, the concatenated low-density parity-check codes (LDPC) and diversity-embedded space-time block codes (DE-STBC) provide double unequal error protection for the video layers, and the STBCs switching enables the adaptability to the varying channel. Experiments demonstrate the superiority of cooperative architecture and the effectiveness of our JSCC algorithm.

关键词： Cooperative transmission joint source-channel coding diversity-multiplexing-coding gain tradeoff scalable video coding

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