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Summary: JOURNAL OF SYSTEMICS, CYBERNETICS AND INFORMATICS, VOL. 3, NO. 1, 2006 1
Effects of Interference on Capacity in Multi-Cell CDMA Networks
Robert AKL, Asad PARVEZ, and Son NGUYEN
Department of Computer Science and Engineering
University of North Texas
Denton, TX, 76207
ABSTRACT
An overwhelming number of models in the literature use average
interference for calculation of capacity of a CDMA network.
In this paper, we calculate the actual per-user interference and
analyze the effect of user-distribution on the capacity of a
CDMA network. We show that even though the capacity ob-
tained using average interference is a good approximation to the
capacity calculated using actual interference for a uniform user
distribution, the deviation can be tremendously large for non-
uniform user distributions. We also present an analytical model
for approximating the user distributions using 2-dimensional
Gaussian distributions by determining the means and the stan-
dard deviations of the distributions for every cell. This allows
us to calculate the inter-cell interference and the reverse-link
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