间歇连接移动网络实际性能分析的基本移动特性

A. Jindal, K. Psounis
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引用次数: 34

摘要

传统的移动自组织路由协议无法在间歇性连接的移动自组织网络(ICMN)中传输任何数据,因为这些网络中缺乏完整的端到端路径。为了克服这个问题,研究人员提出使用节点移动性在网络中传输数据。这些方案被称为机动辅助路由方案。机动性辅助路由方案仅在适当的中继相互满足时才转发数据。他们第一次见面所花费的时间被称为会面时间。他们彼此保持接触的时间称为接触时间。如果它们在接触时间内没有交换数据包(由于网络中的争用),那么它们必须等待,直到它们再次相遇。这段时间被称为会议间时间。任何机动辅助路由方案的实际性能分析都需要了解这三个量的统计信息。这些数量在很大程度上取决于手头的流动性模型。本文研究了三种最常用的移动模型:随机方向、随机路径点和随机行走模型的这三个量。因此,这项工作允许在这三种移动性模型下对任何路由方案进行实际的性能分析
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fundamental Mobility Properties for Realistic Performance Analysis of Intermittently Connected Mobile Networks
Traditional mobile ad hoc routing protocols fail to deliver any data in intermittently connected mobile ad hoc networks (ICMN's) because of the absence of complete end-to-end paths in these networks. To overcome this issue, researchers have proposed to use node mobility to carry data around the network. These schemes are referred to as mobility-assisted routing schemes. A mobility-assisted routing scheme forwards data only when appropriate relays meet each other. The time it takes for them to first meet each other is referred to as the meeting time. The time duration they remain in contact with each other is called the contact time. If they fail to exchange the packet during the contact time (due to contention in the network), then they have to wait till they meet each other again. This time duration is referred to as the inter meeting time. A realistic performance analysis of any mobility-assisted routing scheme requires a knowledge of the statistics of these three quantities. These quantities vary largely depending on the mobility model at hand. This paper studies these three quantities for the three most popularly used mobility models: random direction, random waypoint and random walk models. Hence, this work allows for a realistic performance analysis of any routing scheme under any of these three mobility models
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