Analysis of Link Duration in Mobile Ad Hoc Networks
Date Issued
2006
Date
2006
Author(s)
Wu, Yueh-Ting
DOI
en-US
Abstract
Mobility is an important feature of mobile ad hoc networks (MANET). People are concerned about the impact of mobility on the performance of routing protocols in MANET. Therefore many mobility models are proposed for further analysis or simulations based research.
In the previous literatures, we found that link duration is an important metric measuring the extent of mobility, where the link duration is referred to as the time interval in which two nodes stay within transmission range of each other. We find that link duration is determined by the relative speed and active distance between two nodes, which are in turn determined by the angles of the two nodes’ velocities and the incident angle of one node to the other node’s transmission range. We derive the probability distribution function of link duration for two nodes in multi-hop mobile networks and validate the analytical result via simulations. The analytical result is extended to model multipoint links which appear in existing group mobility models. The accuracy of our framework is validated by simulations based on existing mobility models, and the usability of our model is also demonstrated. The results show our model can well describe the link duration distribution for both types of links in multi-hop mobile networks, especially when the transmission range of each node is relatively smaller than the entire network coverage. At the end of this thesis, we also provided two possible applications based on our model.
Subjects
wireless mobile ad hoc network
link duration
移動無線隨意網路
連線維持時間
Type
thesis
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