| Summary: | In order to conduct meaningful performance analysis of routing algorithms in the
context of Mobile Ad Hoc Networks (MANET), it is essential that the underlying
mobility model on which the simulation is based reflects realistic mobility behavior.
However, current mobility models for MANET simulation are either unrealistic or
are tailor-made for particular scenarios. Furthermore, none of the existing mobility
models support heterogeneous mobility behavior among different mobile nodes in
the simulation.
This thesis introduces GEMM, a tool for generating mobility models that are
both realistic and heterogeneous. These models are capable of simulating complex
and dynamic mobility patterns representative of real-world situations. The input
to GEMM is a set of model descriptions and the output is a mobility scenario that
can be used by either the Glomosim or NS2 network simulator. Simulation results
are presented using AODV, OLSR and ZRP, three previously published MANET
routing algorithms. These results illustrate that mobility-model changes have a
significant impact on their performance. The results underscore the importance of
using realistic mobility scenarios in MANET simulation and demonstrate the ability
of GEMM to generate such mobility scenarios.
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