移动自组网中节点兴趣导向的人类运动模型  

Node Interest Oriented Human Mobility Model in MANETs

作　　者：陈家旭[1] 唐亚哲[1] 宁京宣[2] 王桂娟[1] 

机构地区：[1]西安交通大学计算机科学与技术系 [2]中国人民解放军63956部队

出　　处：《西安交通大学学报》2013年第12期110-115,共6页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目(61170245)

摘　　要：针对移动自组网中对人类运动情况模拟的精确性问题,提出了节点兴趣导向的人类运动模型。该模型考虑到人类对感兴趣地点的访问偏好,忽略了难以有效探测和利用的短暂相遇,设计了将人类之间的社会关系转化为节点兴趣向量的方法,并将其作为模型的输入,以此达到精确、定量地重现目标场景中的主要社会关系的效果。该模型通过直接关联节点兴趣向量值来调整节点运动,便于针对节点兴趣的路由协议研究。通过将该模型生成的模拟场景与实际运动场景的统计量分布情况进行对比,证明该模型可以生成接近于人类实际运动的数据,其中接触间隔时间和接触时长的JSD(Jensen-Shannon Divergence)偏差分别为0.048和0.014。A human mobility model with node interest orientation is proposed to improve the simulation accuracy of human mobility in mobile ad hoc networks. The model takes people＇s access preference to interest locations into consideration and ignores the undetectable and unusable temporary passing-bys. A method to convert people＇s social relationships into node interest vectors is designed and the resulting node interest vectors are used as inputs of the model so that the meaningful social relationships of target scenarios can be reproduced accurately and quantitatively. The model adjusts nodes＇ mobility by correlating them to node interest vectors, and is convenient for routing protocol research on node interest. Comparisons of statistic distributions between the scenario generated by the model and the real trace scenarios show that the model is able to generate traces similar to real human mobility, and the JSD （Jensen-Shannon Divergences） of inter-contact time and contact duration are 0. 048 and 0. 014, respectively.

关 键 词：移动自组网 人类运动模型 节点兴趣 社会关系 

分 类 号：O121.8[理学—数学] G558[理学—基础数学]