提出了一种基于动态退避次数门限的DCF算法DDCF。DDCF针对不同的竞争窗口设定相应所需数据连续发送成功的次数门限,以改变竞争窗口CW在不同的回退阶段的回退概率。通过对DDCF算法的理论分析和仿真试验表明,该算法有效提高了无线局域网的饱和吞吐率等性能。
A novel dynamic RTS threshold based DCF algorithm named DDCF was provided for WLAN. DDCF sets different threshold of needed successful transmission for different CW, The theoretic analysis and simulation indicate that DDCF effectively promotes the performance of WLAN.