Uplink and downlink blocking probability calculation for cellular systems with WCDMA radio interface and finite source population
[ 1 ] Katedra Sieci Telekomunikacyjnych i Komputerowych, Wydział Elektroniki i Telekomunikacji, Politechnika Poznańska | [ P ] pracownik
2007
referat
angielski
- UMTS
- WCDMA
- Blocking Probability
EN The admission control in wireless networks with the WCDMA radio interface admits or blocks new calls depending on a current load situation both in the access cell and in neighboring cells. A new call is rejected if the predicted load exceeds particular thresholds set by the radio network planning. This article presents a new blocking probability calculation method in cellular systems with the WCDMA radio interface for the uplink and the downlink directions. The model considers a finite and an infinite source population of users. In the model, we use the load factor to estimate whether a new call can be admitted or blocked. In the proposed calculation method, the corresponding value of the load factor in the neighboring cell is based on the Okumura-Hata propagation model. The results of the analytical calculations were compared with the results of the simulation experiments, which confirmed the accuracy of the proposed method. The proposed scheme could be applicable for a cost-effective radio resource management in 3G mobile networks and can be easily applied to network capacity calculations.
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