The performance of a mobile ad hoc network depends on its ability to adapt to changes in the

network topology. It is therefore important to understand the relation between node mobility and

topology dynamics. While the input parameters of a mobility model allow for generating different

simulation scenarios (e.g., by selecting the speed, pause time, system area, and number of

nodes), the relation to the actually generated degree of topology dynamics is usually not

immediate. Thus, a translation of the mobility model to the resulting topology dynamics is

required. A natural way to do this is to introduce the topology change rate (TCR), defined as

the number of link changes per time unit as observed by a single node. If we measure the

network performance versus the TCR instead of versus incidental input parameters of a mobility

model, a higher level of abstraction of the results will be achieved, and the reproducability

and comparability of the results will be enhanced. This short paper derives in an analytical

manner the TCR in a scenario where nodes move according to the random waypoint (RWP)

model [5], being the most heavily used mobility model in reseach on ad hoc networks. ... mehr

network topology. It is therefore important to understand the relation between node mobility and

topology dynamics. While the input parameters of a mobility model allow for generating different

simulation scenarios (e.g., by selecting the speed, pause time, system area, and number of

nodes), the relation to the actually generated degree of topology dynamics is usually not

immediate. Thus, a translation of the mobility model to the resulting topology dynamics is

required. A natural way to do this is to introduce the topology change rate (TCR), defined as

the number of link changes per time unit as observed by a single node. If we measure the

network performance versus the TCR instead of versus incidental input parameters of a mobility

model, a higher level of abstraction of the results will be achieved, and the reproducability

and comparability of the results will be enhanced. This short paper derives in an analytical

manner the TCR in a scenario where nodes move according to the random waypoint (RWP)

model [5], being the most heavily used mobility model in reseach on ad hoc networks. ... mehr

Zugehörige Institution(en) am KIT |
Institut für Telematik (TM) |

Publikationstyp |
Zeitschriftenaufsatz |

Publikationsjahr |
2003 |

Sprache |
Englisch |

Identifikator |
ISSN: 1559-1662, 1931-1222 KITopen-ID: 1000004169 |

Erschienen in |
ACM SIGMOBILE mobile computing and communications review |

Band |
7 |

Heft |
4 |

Seiten |
58-60 |

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