Estimation of Traffic Influence on Energy Saving at GSM Channels with Reallocation

Vladimir Milan Milovanović, Juan Antonio López Martín, Djuradj Budimir, Mladen Mileusnić, Vladimir Matić, Bojana Jovanović – Lazić, Aleksandar Lebl, Dragan Mitić, Žarko Markov


This paper presents an innovative procedure for base station emission power calculation in the case of traffic channels reallocation implementation in GSM mobile systems. The main idea of active traffic channels reallocation is to place the connections which require higher emission power due to higher mutual distance between base station and mobile station to the first frequency carrier because these channels have to be always in active mode due to the applied discipline of traffic service in GSM mobile systems. The principle of connections reallocation on the base of distance values sequence determination is novelty comparing to the much more applied principle of connections arrangement according to the propagation conditions. Power saving as the result of this method usage is compared to the necessary power when the sequential hunting with homing method of idle channel looking for is applied. Two special cases are analyzed: 1. the case of low offered traffic (when not more than 6 traffic channels are busy on average) and the case when offered traffic is increased. It is proved that the achieved relative energy saving when the offered traffic is increased over 6Erl rapidly grows at first and then begins to fall. It is important that the absolute value of power saving continuously increases when the offered traffic is increased. One typical example of base station emission power save daily profile is presented on the base of the obtained results.


energy saving; base station emission power; sequential hunting with homing method of idle channel seizure; channel reallocation; daily traffic profile

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Copyright (c) 2022 Vladimir Milan Milovanović, Juan Antonio López Martín, Djuradj Budimir, Mladen Mileusnić, Vladimir Matić, Bojana Jovanović – Lazić, Aleksandar Lebl, Dragan Mitić, Žarko Markov

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