A Novel Call Admission Control Scheme for Multimedia CDMA Networks with Power Multiplexing and Imperfect Power Control

LANGUAGE
English
SOURCE
Proc. IEEE VTC 2003 Spring, April 22-24, 2003, Jeju, Korea
Published Date:2003-04-22
ABSTRACT
A key problem under imperfect power control in multimedia DS-CDMA
networks is how to guarantee the differentiated outage
probabilities of different traffic classes resulted from the
uncertainty of received powers. In addition, in order to utilize
the scarce wireless resource efficiently, as many users as
possible should be admitted into the network while providing
guaranteed quality-of-service support for them. In this work, a
call admission control scheme, Differentiated Outage
Probabilities CAC or DOP-CAC, is proposed to achieve the above
goals for imperfectly power controlled multimedia CDMA networks.
Two important features of CDMA system are considered in our
scheme: one is the power multiplexing among bursty traffics and
the other is the power allocation scheme employed at the physical
layer. The validation and efficiency of DOP-CAC are verified by
numerical examples.