Rate control method over wireless channel based on dynamic optimization

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (13): 109-113.

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Rate control method over wireless channel based on dynamic optimization

ZHOU Jiang1, WANG Guohua2, ZHAO Yuelong3

1.College of Computer Engineering, Guangdong Communication Polytechnic, Guangzhou 510650, China
2.Software College, South China University of Technology, Guangzhou 510006, China
3.College of Computer Science and Engineering, South China University of Technology, Guangzhou 510006, China

Online:2012-05-01 Published:2012-05-09

一种动态优化的无线信道速率控制方法

周江1，王国华2，赵跃龙3

1.广东交通职业技术学院计算机工程学院，广州 510650
2.华南理工大学软件学院，广州 510006
3.华南理工大学计算机科学与工程学院，广州 510006

Abstract

Abstract: About video transmission over wireless channel, the most important control method is rate control. Rate control algorithm based on TFRC（TCP-Friendly Rate Control） is extensively used in wireless network, introduced in this paper is an optimal wireless video transmission rate control method for multi-user based on TFRC. With adaptive modulation and coding, this method regulate rate of physical layer with dynamically optimization depends on user’s feed back channel status in every interval, according to theoretical analysis and simulation, it can equitable distribute the potent speed of every user with respect to entire maximum sum speed constraints.

Key words: TCP-Friendly Rate Control（TFRC）, multi-user, rate control, dynamic optimization

摘要： 速率控制是无线视频传输过程中重要的控制方法，在无线网络中采用了基于TCP友好速率控制TFRC（TCP-Friendly Rate Control）的速率控制方法，提出了基于动态优化的无线视频传输多用户TFRC的速率控制方法。该方法利用了自适应编码调制特点，根据用户的信道状况，动态优化物理层发送速率；经过理论分析和仿真证明可以在总的链路速率不增加的情况下，动态地根据各个用户的信道状况变化情况，公平地分配和调整各个用户带宽，从而最大效率地使用现有链路及提高整体的用户满意度。

关键词: TCP友好速率控制, 多用户, 速率控制, 动态优化

ZHOU Jiang1, WANG Guohua2, ZHAO Yuelong3. Rate control method over wireless channel based on dynamic optimization[J]. Computer Engineering and Applications, 2012, 48(13): 109-113.

周江1，王国华2，赵跃龙3. 一种动态优化的无线信道速率控制方法[J]. 计算机工程与应用, 2012, 48(13): 109-113.

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Rate control method over wireless channel based on dynamic optimization

一种动态优化的无线信道速率控制方法

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