| 一种改进的PCF协议 |
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| 引用本文： | 闫晓东,王志娟.一种改进的PCF协议[J].中央民族大学学报(自然科学版),2008,17(2):44-47. |
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| 作者姓名： | 闫晓东 王志娟 |
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| 作者单位： | 中央民族大学,信息工程学院,北京100081 |
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| 摘 要： | 根据目前国内外在VoWLAN服务质量保证问题的研究情况，本文在尽可能不改变现有无线网络设备的前提下，提出了一种解决方案，该方案通过改进现有PCF协议，采用预测和监测的方法保证协议轮询序列中的各个语音结点在一次CFP周期中都可以被轮询到，这样降低了丢包率和传输时延，从而节省网络资源，最终提高了VoWLAN（Voice over Wireless are anetwork）的服务质量。
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| 关 键 词： | VoWlan 服务质量 PCF DCF |
| 文章编号： | 1005-8036(2008)02-0044-04 |
| 修稿时间： | 2007年12月10 |
A Modified PCF Protocol |
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| YAN Xiao-dong,WANG Zhi-juan.A Modified PCF Protocol[J].Journal of The Central University for Nationalities(Natural Sciences Edition),2008,17(2):44-47. |
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| Authors: | YAN Xiao-dong WANG Zhi-juan |
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| Institution: | ( College of Information Engineering, Center University for Nationalities, Beijing 100081, China) |
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| Abstract: | On the basis of VoWLAN research, a new method by modifying the PCF protocol to increase QOS（Quality of Service）of voice over wireless area network is proposed in this paper. The method can decrease the rate of lost packets and delay of transmit by forecasting and inspecting. In this method the existing wireless network device is not changed and the simulation of this method shows that it increases QOS of VoWLAN indeed. |
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| Keywords: | VoWLAN QOS PCF DCF |
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