الفهرس 
chapter 1Only 14 pages are availabe for public view
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Abstract
Mobile IP has been proposed to support host mobiley •the internet.
Several enhancements to the basic schemes have been developed in order to
provide better perfonnanee.. ’These enhancemenfB comprise route optimization
that rW.uces netwOJX traffic and 8J1’IOIOtb handoff’ tbat ro:luces or eliminates the
data&f:am loss during handoff. The aim of this thesis is to study the effect of
these enhancements on the performance of the basic: mobile IP. A number of
protocol$ that extend the basic mobile IP aod route optimization extension with
smoodt handoff are diSCUS:!ll:d. A number of modificatjons in the source oode of
the NS¥2 simulator bavt: been made in ordef to be compatible with ba$ic mobile
IP and its enhancements.
The thesilS also analyzes the effect of handoff in the mobile IP networks. where
an optimized routing with :nnooth bandoff is adopted. Jt is assumed that there is
a butTer in eac:h FA. Ea<;h queue is modeled according to its location and the
number of received datagrams.. Simulation results iUustrate the improvement in
the perforntan<::e obtained by optimizing smooth tumdoff U$lng buffering at the
foreign agents (FAs). The numerical results illustrate the etrec:t of queuing delay
for the handoff datagnms oo bolh the haodoff time periods Md the probability
of loss wtder various conditions such as load, buffer size. beacon period. and
link delay$, Both numerical and simulation results achieve a satisfactory level of
through lnput.