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[2, 2021] 

Journal of Electrical Engineering, Vol 72, 2 (2021) 125-128 https://doi.org/10.2478/jee-2021-0017

Estimation of the surface user distribution influence on the interference from adjacent cells in CDMA network

Dragan Mitic – Aleksandar Lebl – Zarko Markov

   In this paper we consider the network of mobile users where CDMA technique is used in cells. The dependence of disturbances/interference in the uplink direction as a result of surface user distribution in the neighbouring cells is determined. Three user distribution types are considered: the uniform one, decreasing from the cell centre to the rim and the increasing one. The interference calculation is performed using mean values of user distance from the cell centre. It is proved in the paper that interference caused by decreasingly and increasingly distributed users may differ from the interference caused by the cell with uniform user distribution by not more than ± 75 %.

Keywords: CDMA mobile systems, interference, user surface distribution, attenuation coefficient, power ratio


[full-paper]


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