Title :
A simple model for forward link power-based blocking in CDMA systems
Author :
Al-Shalash, Mazin A. ; Khoja, Jaber A. ; Bredow, Jonathan W.
Author_Institution :
Wireless Networks, Nortel Networks, Richardson, TX, USA
Abstract :
The use of simple models based on queuing theory for the prediction of call blocking, has a long history in telephony. Formulas such as Erlang B, Erlang C, and others have been applied successfully to wireless as well as wireline systems. A simple model for the soft blocking criteria employed in CDMA systems, particularly those based on forward link power, is however lacking. Such a model must take into account the statistics of the forward link power, as well as the characteristics of the traffic. The need for such a model is exacerbated by the adoption of CDMA as the access technology for various 3rd generation wireless systems. This paper presents a simple model for forward link power-based blocking in CDMA systems. The accuracy of the model is indicated by comparing its predictions against the results obtained from a fully dynamic CDMA system simulator.
Keywords :
code division multiple access; queueing theory; radio links; telephony; 3rd generation wireless systems; CDMA systems; call blocking prediction; code division multiple access; forward link power-based blocking; queuing theory; soft blocking criteria; telephony; wireline systems; Degradation; Input variables; Intelligent networks; Interference; Multiaccess communication; Power system modeling; Predictive models; Telephony; Testing; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
Print_ISBN :
0-7803-7954-3
DOI :
10.1109/VETECF.2003.1286356
