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### Begin Citation ### Do not delete this line ###
%R 2004-14
%U /home/csgrad/joyghosh/public_html/obr.pdf
%A Ghosh, Joy
%A  Philip, Sumesh
%A  Qiao, Chunming
%T Performance Analysis of Mobility Based Routing Protocols in MANET
%D September 16, 2004
%I Department of Computer Science and Engineering, SUNY Buffalo
%K Mobility model, Routing protocol, Ad hoc wireless networks, Performance analysis
%X Most routing protocols in MANET adopt the popular 
Random Waypoint model for its simplicity and suitability 
for theoretical study and analysis. Recently, several entity, group 
and scenario based mobility models and frameworks have been 
proposed to model much more realistic and practical movements 
of mobile nodes in real scenarios. Although some work exists in 
evaluating routing protocols based on such specific scenarios, and 
some effort in adapting a protocol to suit mobility has been made, 
there does not exist any protocol that makes direct use of mobility 
information to route packets within a MANET. In this work, 
we first develop a practical mobility model that recognizes an 
orbital pattern in the sociological movement of mobile users, and 
then propose a novel Orbit Based Routing (OBR) protocol, that 
leverages the underlying orbital mobility to accurately determine 
a set of likely regions containing any node in the MANET. By 
forming a distributed location database among acquaintances 
and employing a scalable geographic routing to forward packets 
among nodes, OBR emerges as a clear choice for MANET routing 
in the face of practical mobility. We propose three different 
schemes of OBR and compare their performance against an 
Acquaintance Based Soft Location Management (ABSoLoM) 
protocol.