计算机科学 ›› 2014, Vol. 41 ›› Issue (8): 148-153.doi: 10.11896/j.issn.1002-137X.2014.08.033
王文涛,王豪,朱容波,郭峰,郑芳
WANG Wen-tao,WANG Hao,ZHU Rong-bo,GUO Feng and ZHENG Fang
摘要： 针对反应式MANET路由协议在较大通信量模式下出现的RREQ报文拥塞问题,提出一种新的机制。该机制根据分组投递率和数据包发送速率的拟合函数曲线设定不同的阈值响应路由请求,当平均队列长度超出最大阈值时,以一定概率随机丢弃RREQ报文,同时根据拟合函数公式来决定Hello包发送周期。仿真结果表明,新的机制在没有明显增加路由发起频率的情况下,能够有效降低平均端到端延时和Hello包开销,提高了分组投递率。
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