摘要
为了满足无线局域网中实时多媒体数据通信的服务质量要求,提出了一种基于比例积分微分控制的服务质量机制,详细研究了该机制的实现原理和方法,给出了控制器和IEEE802.11无线网络的传递函数和带宽补偿算法。并在无线局域网的反馈控制系统环境内进行了仿真,仿真实验结果表明,这种基于PID控制的服务质量能满足无线局域网内实时多媒体通信服务质量的要求。
To meet the need of real -time multimedia communications in wireless local area network（WLAN） in desirable quality of service, A quality of service mechanism based on Proportional Integral Derivative control is proposed, with detailed research of its operation principle and approaches, the transfer function of controller and 802. 11 WLAN and the bandwidth compensation algorithm are given too. Followed by simulations of feedback control system in WLAN, the simulation experimental results show that the PID Control Based quality of service mechanism can satisfy need for quality of service of real - time multimedia communications in WLAN.
出处
《微计算机应用》
2008年第8期24-28,共5页
Microcomputer Applications
关键词
比例积分微分控制
服务质量
无线局域网
反馈控制
PID Control, Quality of Service, Wireless Local Area Network, Feedback Control
