Title :
Optimal joint rate and power allocation in a multicell multimedia CDMA network
Author :
Zhang, Xing ; Wang, Wenbo ; Liu, Yuanan
Author_Institution :
Center for Wireless Commun., Beijing Univ. of Posts & Telecommun., China
Abstract :
Optimal joint rate and power allocations of a multimedia CDMA system are presented in a multicell network. The optimal data rate and power allocations are for both links (uplink and downlink) while assuring each user´s QoS requirements, i.e., data rate requirement and application´s BER constraint. The purpose of the resource allocation is to minimize the total transmission power for both link directions; this gives rise to maximum capacity since the capacity of a CDMA system is interference-limited. We show, through strict theoretical deduction, that the proposed allocation provides the optimal joint data rate and power allocation for both the uplink and the downlink in multicell multimedia CDMA systems.
Keywords :
cellular radio; code division multiple access; error statistics; minimisation; quality of service; resource allocation; BER constraint; data rate allocation; maximum capacity; mobile users; multicell multimedia CDMA network; multicell network; optimal joint rate-power allocation; resource allocation; transmission power minimization; Bit error rate; Downlink; Fading; Intelligent networks; Interference constraints; Multiaccess communication; Multimedia systems; Power control; Power system modeling; Resource management;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465514
