Influence of traffic model on the calculation of BTS output power in GSM network

In this paper we proved that calculation of base station output power depending on traffic nearly always gives smaller values than it is in reality, if Erlang model of the channel group is applied. It is proved that increasing of power is caused by the influence of intra-cell connections. The smaller values of power are also obtained when Erlang model is compared to the case of limited number of users, but the difference in this case is not great. The results of calculation are verified by the comparison to the results of simulation.