| 摘要: |
| 多媒体通信中如何对视频流量速率进行高效公平分配是提升无线网络性能的重要手段
。应用势力场博弈模型来研究无线网络视频流速率分配机制，根据视频流特性建立了基
于流量信噪比和流量速率为参数的势力场效用函数，提出了基于势力场博弈的无线网络视频
流速率控制模型。证明了模型的纳什均衡存在性及唯一性，并提出了势力场博弈模型纳什均
衡的分布式求解算法。数值仿真验证了势力场博弈的纳什均衡存在性，仿真结果表明了提出
的模型能保证不同视频流量间公平的速率分配，且由于提出的算法执行方式是分布式的，能
有效减轻网络的负载。 |
| 关键词: 无线网络 多媒体通信 视频流 速率控制 势力场博弈 纳什均衡 |
| DOI： |
|
| 基金项目:国家自然科学基金资助项目(61163055);福建省自然科学基金资
助项目(2011J05155 ) |
|
| Wireless network video stream rate control model based on potential game |
| FENG Hui-bin,WENG Kun-peng,YU Gen-jian |
| () |
| Abstract: |
| Efficent and fair rate allocation for video stream is the important measure
to upgrade the wireless network performance in multimedia communication
.In this paper,a wireless network video stream rate control model and algorithm
based on potential game is proposed. The utility function on PSNR and flow rate is constructed according to the video stream characteristic, thus the wireless network video stream
rate control based on potential game is proposed. The existence and uniqueness
of the proposed model′s Nash equilibrium is proved theoretically and a distributed al
gorithm to obtain Nash equilibrium is proposed. Numerical simulation shows the p
roposed model can ensures different video stream fair rate allocation, and it ca
n lessen the network load efficiently. |
| Key words: wireless network multimedia communication video stream rate control potential game Nash equilibrium |
《电讯技术》编辑部 