Petr Kejík

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CDMA systems have so-called soft capacity, so the total number of possible sessions has not an exact value. The capacity of CDMA system depends on the interference level in the system. There are therefore RRM (Radio Resources Management) functions, which are responsible for supplying optimum coverage, ensuring efficient use of physical resources and(More)
Capacity of CDMA system depends on an interference level in the system. There are therefore RRM (Radio Resources Management) functions, which are responsible for supplying optimum coverage, ensuring efficient use of physical resources and providing the maximum planned capacity. A call admission control algorithm based on load factor evaluation and a fuzzy(More)
ADS-B (Automatic Dependent Surveillance - Broadcast) is a key enabler for current and especially future ATM (Air Traffic Management) surveillance applications. The ADS-B communication link, 1090 MHz channel, suffers from congested environment, which may negatively impact the performance of corresponding surveillance applications. This paper presents several(More)
Universal mobile telecommunications system (UMTS) is one of the 3 generation (3G) cell phone technologies. The capacity of UMTS is interference limited. Radio resources management (RRM) functions are therefore used. They are responsible for supplying optimum coverage, ensuring efficient use of physical resources, and providing the maximum planned capacity.(More)
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