| TD-LTE系统DRX跨层优化视频传输机制的研究与分析 |
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| 引用本文： | 杨前华,万宇.TD-LTE系统DRX跨层优化视频传输机制的研究与分析[J].电视技术,2014,38(7). |
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| 作者姓名： | 杨前华 万宇 |
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| 作者单位： | 南京信息职业技术学院通信学院,中国移动通信集团江苏有限公司 |
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| 摘 要： | 为解决TD-LTE系统中视频传输的功耗效率和实时性问题，提出了一种保证QoS的基于预测功能的基站架构和视频传输非连续接收（DRX）跨层优化算法。通过在基站架构中添加预测功能块，并结合对视频帧尺寸信息的建模、参数估计和预测，实现DRX周期的优化，在减小功耗的同时保证视频传输的实时性。通过大量的模拟，仿真结果证明可以在省电和视频传输质量两者之间权衡找到最佳工作区域，节省终端设备约30-80％的功率。
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| 关 键 词： | TD-LTE 非连续接收 功耗效率 视频流 |
| 收稿时间： | 2013/6/16 0:00:00 |
| 修稿时间： | 2013/8/13 0:00:00 |
A cross-layer optimized DRX mechanism of video transmission over TD-LTE |
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| Yang Qian Hua and Wan Yu.A cross-layer optimized DRX mechanism of video transmission over TD-LTE[J].Tv Engineering,2014,38(7). |
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| Authors: | Yang Qian Hua and Wan Yu |
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| Affiliation: | Nanjing College of Information Technology,China Mobile Limited Jiangsu company |
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| Abstract: | In order to solve the power efficiency and real-time issues of video transmission in TD-LTE system, this paper proposed a eNodeB architecture and discontinuous reception (DRX) cross-layer optimization algorithm based on prediction for video transmissionwith QoS ensurance. By adding the prediction function block in eNodeB architecture and combining the video frame size information modeling, parameter estimation and prediction, DRX cycle optimization is achieved in reducing the power consumption while ensuring real-time video transmission. Through a large number of simulations, the simulation results show that the guarantee of video quality and bandwidth requirements, the mechanism can save 30-80% power of the terminal. |
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| Keywords: | TD-LTE DRX Power efficiency Video Streaming |
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