基于分形理论的无线链路性能分析

Analysis of Performance of Wireless Link Based on Fractal Theory

根据无线网络的实际测试结果 ,使用R/S分析法首次发现了 80 2 .11无线局域网的业务量特性具有长相关性 (自相似性 ) ,并发现两台无线设备进行点对点文件传输时的网络特性同样呈现出显著的长程相关性 .作为建立基于分形理论的无线链路特性的数学模型的初步尝试 ,给出并验证了丢包率PLR与Hurst系数。

Using R/S statistic analysis to a series of real test resuks, this paper finds that both of the IEEE 802.11 WLAN traffic and the traffic between 2 point to point wireless devices exhibit obviously Long Ronge Dependence (LRD). To set up a wireless link traffic mathematical model based on fractal theory, a packet loss rate expression over a wireless link is obtained and verfied.