3G Traffic models

Hello. I m working in a thesis on
traffic modelling for 3G. As you
know traffic analysis for third
generation mobile telecommunication
systems should take into account a
variety of services(e.g. voice, data,
video, etc) and “environments” (private,
public both outdoor and indoor) as
well as the user mobility behaviour.
The traffic model must incorporate all
the above mentioned features. We
should utilise a set of simplifying
assumptions regarding the distribution
of certain random time intervals(e.g.,
call duration and “cell residence time”)
and the handover arrival process.
The core of the model has to focus
on the estimation of the cell border
crossing rate and the time it takes a
busy mobile user to leave a cell area.
This allows for the estimation of the
handover rate and the call duration
within a cell, which in turn, utilising
an iterative method, allows for the
calculation of the offered traffic
load per cell. I m looking for a model
who permit to me to get:
(a) the simple closed form solution
(b) independence from the applied radio
resource management scheme and
(c) accuracy.
Basically what I need is a program /papers
which let me simulate calls in 3rd
generation mobile telecomm. systems
and be able to design / size the cells
and so on. I use Fortran 90 (Visual Fortran)
and MATLAB.
I will appreciate very much any help.
Thank you very much for your cooperation.
Sincerely;
Raúl González