arXiv ID: 1709.02471
Title: Parameterization of the SWIM Mobility Model Using Contact Traces
Language: English
Authors: Vatandas, Zeynep  
Venkateswaran, Manikandan 
Kuladinithi, Koojana  
Timm-Giel, Andreas  
Issue Date: 7-Sep-2017
Source: A. Foerster, A. Udugama, A. Koensgen, A. Virdis, M. Kirsche (Eds.), Proc. of the 4th OMNeT++ Community Summit, University of Bremen - Germany - September 7-8, 2017
Abstract (english): Opportunistic networks (OppNets) are focused to exploit direct, localised communications which occur in a peer- to-peer manner mostly based on people?s movements and their contact durations. Therefore the use of realistic mobility models is critical to evaluate the data dissemination in OppNets. One of the mobility models that is available in OMNeT++ which can be used to mimic human movement patterns is Small Worlds in Motion (SWIM). The SWIM model is based on the intuition that humans often visit nearby locations and if the visited location is far away, then it is probably due to the popularity of the location. As an alternative to mobility of a node, pairwise contact probabilities are also used to evaluate the data dissemination in OppNets. Pairwise contact probabilities can be used to predict that a node will be met by a particular node. These probabilities can be derived in many ways. One of the ways is to calculate the average probability with which a node will meet another particular node at any point of time. Another way is to calculate the probability with which a node will meet another based on the time of day. The way of calculating pairwise contact probability depends on the scenario. In this work, the pairwise contact probabilities obtained from the real traces are used to tune the parameters of the SWIM mobility model. The traces and the SWIM model are compared in terms of contact durations, inter-contact times and, number of pairwise contacts. How to decide SWIM parameters using real contact traces are being addressed.
Conference: 4th OMNeT++ Community Summit 
Institute: Kommunikationsnetze E-4 
Type: InProceedings (Aufsatz / Paper einer Konferenz etc.)
Project: Opportunistic Networks 
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