Title :
Unequal power assignment strategy for 3G system and the application in AMR
Author :
Fei, Zesong ; Wan, Lei ; Kuang, Jingming
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., China
Abstract :
An unequal power assignment strategy 3G system is proposed in this paper, which aims to maximize the admission capacity of one cell. Through the analysis of multiple access interference (MAI) for the uplink of the 3G system, a formula to calculate the optimal power ratio for multimedia traffic is deduced. The performance of the novel strategy in a 3GPP-FDD system with integrated speech and data traffic has been investigated and compared with the traditional equal power assignment (EPA) strategy. Simulation results reveal that unequal power assignment outperforms the EPA. The application of the unequal power assignment strategy in the adaptive multi-rate (AMR) codec is investigated and simulation results show that different AMR modes have different influence on admission capacity.
Keywords :
3G mobile communication; adaptive codes; cellular radio; channel capacity; codecs; integrated voice/data communication; multimedia communication; optimisation; power control; radiofrequency interference; telecommunication control; telecommunication traffic; variable rate codes; 3G system; 3GPP-FDD system; AMR codec; MAI; adaptive multi-rate codec; admission capacity maximization; cellular radio; integrated speech data traffic; multimedia traffic; multiple access interference; optimal power ratio; performance; unequal power assignment strategy; uplink; 3G mobile communication; Interference; Multiaccess communication; Multimedia systems; Paper technology; Power engineering and energy; Resource management; Speech; Telecommunication traffic; Traffic control;
Conference_Titel :
Electrical and Computer Engineering, 2002. IEEE CCECE 2002. Canadian Conference on
Print_ISBN :
0-7803-7514-9
DOI :
10.1109/CCECE.2002.1012974
