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| 高密度WLAN环境下动态频率选择算法的研究 | |
| 引用本文： | 徐雅静,闫晓东,徐惠民. 高密度WLAN环境下动态频率选择算法的研究[J]. 电子科技大学学报(社会科学版), 2007, 0(5) |
| 作者姓名： | 徐雅静 闫晓东 徐惠民 |
| 作者单位： | 北京邮电大学IRDC实验室 北京海淀区100876 |
| 基金项目： | 国防预研基金资助项目(51402040205) |
| 摘 要： | 提出了一种新的动态频率选择算法,该算法基于DCF机制,不改变原有IEEE 802.11b的MAC层协议。算法定义了一个信道质量参数用来评估自身干扰情况,通过周期性的检测信道状态,自适应的优化算法参数,动态分配频率资源,在现有的信道资源下提升系统容量。给出了算法处理过程的描述以及相关参数,并以IEEE 802.11b系统为例进行了仿真。仿真结果表明:该算法能够实现在高密度、负载不均衡的无线局域网环境下大大提高整个系统的吞吐量。 |
| 关 键 词： | 动态频率选择 IEEE 802.11b 自身干扰 无线局域网 |
Research on DFS Algorithm in a Dense WLAN Environment |
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| XU Ya-jing,YAN Xiao-dong,XU Hui-min. Research on DFS Algorithm in a Dense WLAN Environment[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2007, 0(5) | |
| Authors: | XU Ya-jing YAN Xiao-dong XU Hui-min |
| Abstract: | In this paper, a new Dynamic Frequency Selection (DFS) algorithm is introduced in detail based on Distributed Coordination Function (DCF) mechanism. The DFS algorithm has defined a parameter of channel quality assessment. According to the condition of channel interference, DFS can optimize parameters and assign frequency recourses dynamically, and therefore improve the system capacity adaptively. The paper gives the disposition processing and parameters. Simulation results show that DFS can improve total throughput in a dense and non-uniform load WLAN system. |
| Keywords: | dynamic frequency selection IEEE 802.11b self-interference wireless local area network |
| 本文献已被 CNKI 等数据库收录！ | |