Title :
Resource allocation for multimedia CDMA wireless system with soft target SIR thresholds
Author :
Wang, Lin-Lin ; Wang, Shu-xun ; Sun, Xiao-Ying ; Liang, Ying-Chang
Author_Institution :
Inst. of Commun. Eng., Jilin Univ., Changchun, China
Abstract :
Power control and data rate allocation are two fundamental techniques for improving the spectral efficiency of wireless multimedia communications. In this paper, we study the relation of data rates and target SIR thresholds by minimizing the total transmitted power for given system throughput using DS-CDMA technology. The law that governs the dynamic data rate allocation is analyzed by adjusting target thresholds. Computer simulation results show that user has to sacrifice its target SIR threshold to obtain more resource from the system.
Keywords :
code division multiple access; multimedia communication; power control; radio links; radiofrequency interference; resource allocation; spread spectrum communication; DS-CDMA technology; code division multiple access; data rate allocation; downlink channel model; mathematical analysis; multimedia CDMA wireless system; power control; resource allocation; soft target SIR thresholds; spectral efficiency; total transmitted power; wireless multimedia communications; Communication system control; Control systems; Downlink; Multiaccess communication; Multimedia communication; Multimedia systems; Power control; Programmable control; Resource management; Throughput;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209662
