A NOVEL CAPACITY ANALYZING METHOD FOR MULTIMEDIA CDMA SYSTEMS BASED ON POWER LEVEL ALLOCATION  

作　　者：Pan Su Tung Sang Ng Feng Guangzeng 

机构地区：[1]Dept of Telecommunications Engineering, The Nanjing University o）C%osts ＆ Telecommunications, Nanjing 210003, China [2]Nattonal Mobile Communications Key Lab, The Southeasi University, Nanjing 210096, China [3]Dept of Electrical and Electronics Engineering, The University of Hong Kong

出　　处：《Journal of Electronics(China)》2006年第6期842-847,共6页电子科学学刊（英文版）

基　　金：Supported by the open research fund of the National Mobile Communications Key Lab of the Southeast Uni-versity and by the Hong Kong Research Council.

摘　　要：A novel method is proposed to analyze the capacity of future Code Division Multiple Access （CDMA） systems carrying multimedia services. The power level allocation is firstly investigated to meet each call＇s Bit Error Rate （BER） requirement, then the system capacity is defined from the conditions lbr the existence of the physical meaning of these power levels. Simulation results have shown that the capacity analyzing methods can be well used in the performance evaluation of the system accommodating heterogeneous services and the spectral efficiency of this scheme is higher than the existing ones.A novel method is proposed to analyze the capacity of future Code Division Multiple Access (CDMA) systems carrying multimedia services. The power level allocation is firstly investigated to meet each call’s Bit Error Rate (BER) requirement, then the system capacity is defined from the conditions for the exis-tence of the physical meaning of these power levels. Simulation results have shown that the capacity analyzing methods can be well used in the performance evaluation of the system accommodating heterogeneous services and the spectral efficiency of this scheme is higher than the existing ones.

关 键 词：Capacity MULTIMEDIA Code Division Multiple Access （CDMA） 

分 类 号：TN911[电子电信—通信与信息系统]