Abstract
Mobility models of nodes have an important role in the evaluation of data dissemination protocols in vehicular ad hoc networks (VANETs). Many recent researches have used the constant velocity mobility models while vehicles have acceleration and their speeds change as they move. Because of the dynamic nature of VANETs, the network changes from a densely connected to the sparsely connected environment in a short time. In sparsely connected networks, it is said that vehicles move in clusters. In this paper, the constant acceleration mobility calculations for the sparsely connected network and its characteristics have been presented. These characteristics are usable for the evaluation of the data dissemination protocols in VANETs. The results show that acceleration affects the number of viewed clusters during the trip and the number of vehicles within a cluster. In fact, acceleration has a significant impact on the network sparsely connection. This matter shows that the appropriate data dissemination protocol should be used to study the acceleration effect which is applicable in sparse networks. The analysis in this research provides the necessary background for better understanding and accurate calculations for the evaluation of data dissemination in VANETs.
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- VANET:
-
Vehicular ad hoc network
- RSU:
-
Road side unit
- DDRC:
-
Data dissemination using rateless codes
- RWP:
-
Random way point
- RPGM:
-
Reference point group mobility model
- SCF:
-
Store-carry-forward
- VADD:
-
Vehicle assisted data delivery
- SODAD:
-
Segment-oriented data abstraction and dissemination
- MDDV:
-
Mobility-centric data dissemination algorithm for vehicular networks
- DP:
-
Data pouring
- GHR:
-
Gazis, Herman and Rothery
- DD:
-
Decoding distance
- NS2:
-
Network simulator
- SUMO:
-
Simulation of urban mobility
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Khiadani, N.H., Hemami, S.M.S. & Hendessi, F. Analysis of Acceleration Effect in Data Dissemination in Vehicular Networks Using Rateless Codes. Wireless Pers Commun 77, 991–1006 (2014). https://doi.org/10.1007/s11277-013-1548-3
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DOI: https://doi.org/10.1007/s11277-013-1548-3