基于节点差异性的机会网络数据转发算法  

Data transmission algorithm of opportunistic networks based on nodes difference

作　　者：高彩霞[1] 祁昌平[1] 

机构地区：[1]河西学院信息技术与传媒学院,甘肃张掖734000

出　　处：《西北师范大学学报（自然科学版）》2015年第4期42-45,57,共5页Journal of Northwest Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(61173124)

摘　　要：为了提高机会网络传输成功率,降低传输开销,提出了一种基于节点差异性的机会网络数据转发算法.选择剩余能量大、邻居更新速度快的节点作为中继节点,根据节点对的邻居相似度自适应调节阈值,以满足不同网络环境下的转发要求.仿真实验表明,此算法与其他算法相比,在较低的传输延迟下大大提高了传输的成功率,降低了网络传输开销.In order to improve the success rate of network transmission,reduce transport costs,a novel data transmission algorithm of opportunistic networks based on nodes＇ difference is proposed.Firstly,the node residual energy and neighbor update speed is selected as a relay node;and then the threshold is adaptively adjusted according to neighbor similarity node to meet the forwarding requirements under the different network environment.The simulation results show that this proposed algorithm not only has improved the network data transmission probability and reduced the delay of network transmission,and greatly reduce the transmission number of nodes and sharply reduce the network cost compared with other opportunistic network data forwarding algorithms.

关 键 词：机会网络 邻居变化率 传输性能 自适应转发 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术]