Integrated Power and Admission Control Algorithm for Multimedia CDMA Wireless Networks

Jui Teng WANG  

IEICE TRANSACTIONS on Communications   Vol.E87-B   No.10   pp.2946-2953
Publication Date: 2004/10/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
power control,  admission control,  CDMA,  

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We propose in this paper the integrated power and admission control (IPAC) algorithm for multimedia CDMA wireless networks. The distributed power control with partial power assignment (DPC-PPA) algorithm, which can speed up the process in finding a feasible power set, is chosen as the power control algorithm for the IPAC algorithm. We prove that given a feasible configuration, the power set of the DPC-PPA algorithm will converge to a feasible power set which achieves equality in a set of linear equations. After a pre-specified number of iterations of power control, if the QoS requirements are not all satisfied, the IPAC algorithm uses the admission control procedure to reduce the outage probability. We derive an admission criterion, which gives a necessary and sufficient condition for a group of users to be admissible for the network, for the admission control procedure. Furthermore, we also found from simulation results that the IPAC algorithm results in smaller outage probability than the distributed power control algorithms without admission control.