摘要
为提高战术Ad Hoc网络中领导者节点的报文发送成功率,提出了新的用于媒体接入控制的退避算法.该算法采用不同于传统的退避间隔设置方法,当领导者节点报文发送成功时,退避间隔设为最大值;报文发送失败时,随着报文重传次数增加,逐渐减小退避间隔,实现报文的重传.同时还从理论上分析了算法的性能.计算机仿真表明,其有效提高了网络中领导者节点的报文发送成功率,且对网络中普通节点的报文发送成功率影响很小.
To improve the success probability of transmitted packets of leader nodes in tactics Ad Hoc network, a novel backoff algorithm was proposed, which was different from general methods of setting backoff intervals. When the leader succeeded to send a packet, the backoff interval was set as the maximum value. After failing to send a packet, the backoff interval was gradually shortened when times of retransmission increased. Then its performance was theoretically analyzed. Computer simulation shows that the success probability of packets of leader nodes which are transmitted is greatly improved and little effect is given to the success probability of packets of common nodes.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2005年第5期30-33,共4页
Journal of Beijing University of Posts and Telecommunications
