An Obstacle-Aware Mobility Model for Campus Delay Tolerant Network

Sirajo Abdullahi Bakura, A. Lambert, Thomas Nowak
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引用次数: 2

Abstract

Mobility models are widely used for the evaluation of Delay Tolerant Networks (DTNs) performance, this mitigates the need for the model that can generate patterns that guarantee the contact opportunities for a reliable package forwarding. In this paper, we present a new mobility model that describes students’ daily activities in a campus environment. As opposed to the conventional models such as a Random walk, Random waypoint, Random direction, etc which uses a free space environment, our model includes obstacles of different shapes and sizes that obstruct movement and signal propagation. We evaluate the model using ONE simulator by comparing it with the Working Day Model and Random Waypoint. The model synthetically generates traces with the distribution of contact duration and inter-contact time similar to the distribution of real traces. We further investigate its impact on the performance of DTNs routing protocols and the result shows that, it performs better than the existing models in terms of average delivered message and message latency.
校园容忍延迟网络的障碍物感知移动模型
移动模型被广泛用于延迟容忍网络(dtn)性能的评估,这减少了对能够生成模式的模型的需求,以保证可靠的数据包转发的接触机会。在本文中,我们提出了一个新的流动性模型来描述学生在校园环境中的日常活动。与使用自由空间环境的传统模型(如Random walk, Random waypoint, Random direction等)不同,我们的模型包含了不同形状和大小的障碍物,这些障碍物阻碍了运动和信号的传播。我们使用ONE模拟器对模型进行评估,将其与工作日模型和随机路径点进行比较。该模型综合生成了与实际迹线分布相似的接触持续时间分布和接触间时间分布。我们进一步研究了它对DTNs路由协议性能的影响,结果表明,它在平均传递消息和消息延迟方面优于现有模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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