| 本文已被：浏览 5314次 下载 11294次 |
码上扫一扫！ |
|
|
| 可量化的移动Ad Hoc 网络时空动态特性评估方法 |
|
王伟1,2, 管晓宏1, 王备战3, 王亚平4
|
|
1.西安交通大学 智能网络与网络安全教育部重点实验室 机械制造系统工程国家重点实验室,陕西 西安 710049;2.西安工程大学 计算机科学学院, 陕西 西安 710048;3.厦门大学 软件学院,福建 厦门 361005;4.Department of Industrial and Systems Engineering, Texas A&M University, TX 77843, USA
|
|
| 摘要: |
| 移动模型是Ad Hoc 网络区别于其他形式网络的重要标志,对其产生的动态网络特性(简称动态特性)进行评估,是研究Ad Hoc 网络的协议仿真和网络相关技术(如拓扑控制和网络性能测量等)的基础性问题.在已有研究的基础上,改进了网络的模型化描述,克服了以往模型无法很好地描述相关联的时空动态特性的缺陷,并在此基础上,提出了移动模型通用的可量化时空动态特性评估方法.通过构建节点空间位置分布,建立网络拓扑时空动态特性的分析模型,深入研究了几种移动模型的动态性.提出一种圆周曲线移动模型,弥补了以往移动模型难以描述现实的曲线移动场景.仿真实验结果表明,该方法能够有效地对现有移动模型的动态性进行评估.实验结果表明,圆周曲线移动模型与以往移动模型相比,具有良好的时空动态特性. |
| 关键词: 移动Ad Hoc 网络 移动模型 时空动态特性 量化评估 圆周曲线移动模型 |
| DOI：10.3724/SP.J.1001.2011.03966 |
| 分类号: |
| 基金项目:国家自然科学基金(60921003); 中国博士后科学基金(20090451384); 国家高技术研究发展计划(863)(2008AA01Z415); 高等学校博士学科点专项科研基金(20070698107); 国家杰出青年科学基金(60825202); 中央高校基本科研业务费专项资金(xjj20100051) |
|
| Evaluation Method with Measureable Space-Time Dynamic Properties for Mobile Ad Hoc Networks |
|
WANG Wei1,2, GUAN Xiao-Hong1, WANG Bei-Zhan3, WANG Ya-Ping4
|
|
1.Ministry of Education Key Laboratory for Intelligent Network and Network Security, State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China;2.School of Computer Science, Xi’an Polytechnic University, Xi’an;3.School of Software, Xiamen University, Xiamen 361005, China;4.Department of Industrial and Systems Engineering, Texas A&M University, TX 77843, USA
|
| Abstract: |
| Mobility model is a crucial feature to differentiate ad hoc networks from other networks. The evaluation of dynamic network properties caused by mobility model is the basic problem for research on protocol simulation and related technologies, such as topology control and network performance measurement, in ad hoc networks. In this paper, a model-based description of ad hoc networks is improved to avoid the drawbacks in describing the corresponding space-time dynamic properties. Then a universal evaluation method with measureable space-time dynamic properties is presented. The dynamic properties of several mobility models are studied by constructing the space distribution of the nodes and designing the models for analyzing the topological space-time dynamic properties. Furthermore, a novel mobility model based on circular curve movement is proposed to improve the flexibility and the capability to describe realistic scenarios with curve movement. Simulation with NS2 shows the presented method can effectively evaluate the characteristics of the existing mobility models. The numerical results also show that the proposed mobility model has good dynamic properties in comparison with the existing mobility models. |
| Key words: mobile ad hoc network mobility model space-time dynamic property measureable evaluation circle curve mobility model |
