| Equation based rate control scheme for video streaming over wireless channels with link level ARQ |
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| 作者姓名： | ZHU Xiao-liang YANG Zong-kai DU Xu CHENG Wen-qing |
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| 作者单位： | Department of Electronics ＆ Information Engineering, Huazhong University of Science ＆ Technology, Wuhan 430074, China |
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| 基金项目： | Project supported by the National Natural Science Foundation ofChina (No. 60302004) and the Natural Science Foundation of HubeiProvince (No. 2005ABA264), China |
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| 摘 要： | INTRODUCTION Video streaming applications generally require continuous high bandwidth guarantees as well as stringent bounds on delays and jitters (Shen et al., 2004; Hassan and Krunz, 2004). Providing video streaming with acceptable quality degradation over wireless channels is fraught with challenges due to the adverse influence of bandwidth limitation, time variation, high error rate, and so on (Etoh and Yo- shimura, 2005; Shen et al., 2004; Chen and Zakhor, 2004; Hassan and Krunz, …
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| 关 键 词： | TFRC 视频流动 无线信道 ARQ 速率控制 |
| 收稿时间： | 2005-12-15 |
| 修稿时间： | 2006-02-17 |
Equation based rate control scheme for video streaming over wireless channels with link level ARQ |
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| ZHU Xiao-liang YANG Zong-kai DU Xu CHENG Wen-qing.Equation based rate control scheme for video streaming over wireless channels with link level ARQ[J].Journal of Zhejiang University Science,2006,7(10):1702-1708. |
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| Authors: | Xiao-liang Zhu Zong-kai Yang Xu Du Wen-qing Cheng |
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| Institution: | (1) Department of Electronics & Information Engineering, Huazhong University of Science & Technology, Wuhan, 430074, China |
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| Abstract: | Equation based TCP-friendly rate control (TFRC) protocol has been proposed to support video streaming applications. In order to improve TFRC performance in wireless channels, the link level automatic repeat request (ARQ) scheme is usually deployed. However, ARQ cannot ensure strict delay guarantees, especially over multihop links. This paper introduces a theoretical model to deduce an equation for packet size adjustment in transport layer to minimize retransmission delay by taking into con- sideration the causative reasons inducing retransmission in link layer. An enhanced TFRC (ETFRC) scheme is proposed inte- grating TFRC with variable packet size policy. Simulation results demonstrate that higher goodput, lower packet loss rate (PLR), lower frame transmission delay and jitter with good fairness can be achieved by our proposed mechanism. |
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| Keywords: | TFRC Video streaming Wireless channels Automatic repeat request (ARQ) Rate control |
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