Title :
Call blocking probability for heterogeneous and asymmetrical traffics in a TD-CDMA system
Author :
Cho, Ho-Shin ; Shin, Jungchae ; Lee, Yutae
Author_Institution :
Sch. of Electron. & Electr. Eng., Kyungpook Nat. Univ., Daegu, South Korea
Abstract :
We develop a mathematical model to analyze call-level performance of radio channel allocation of TD-CDMA systems supporting multitype heterogeneous and asymmetrical traffic. The mathematical model has multidimensional operations using random vectors or matrices to deal with multiple types of traffic and asymmetrical up-and-down transmission directions separately. Employing the mathematical model, we obtain call blocking probability for each type of traffic and the optimum time-slot switching-point with the smallest call blocking probability.
Keywords :
4G mobile communication; channel allocation; code division multiple access; multimedia communication; probability; telecommunication traffic; time division multiple access; 4G mobile communication; TD-CDMA system; call blocking probability; heterogeneous-asymmetrical traffics; multimedia traffic; optimum time-slot switching-point; radio channel allocation; random matrices; up-and-down transmission direction; 4G mobile communication; Channel allocation; Communication switching; Downlink; Helium; Mathematical model; Multidimensional systems; Performance analysis; Telecommunication traffic; Traffic control;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.837651
