標題: | System Capacity and Convergence Rate Evaluation for Downlink Power Control in 5G MDMA Cellular Systems |
作者: | Hsiao, Wei-Han Su, Jing-Jing Tang, Zhi-Wen Yin, Jia-Le Huang, Chia-Chi 電機工程學系 Department of Electrical and Computer Engineering |
關鍵字: | power control;MDMA;5G communication;downlink;closed-loop |
公開日期: | 1-一月-2018 |
摘要: | Several downlink power control (PC) algorithms are investigated in this paper for the fifth generation MDMA based cellular system. Among them, the closed-loop PC schemes are studied, which are useful to reduce the co-channel interference and increase the system capacity. Two kinds of iterative methods are commonly discussed. One is the SIR based approach, and the other is the eigenvalue based approach. Some representative PC algorithms are evaluated in terms of different performance metrics. In addition, an enhanced PC method is proposed which combines the advantages of the previous methods. It is shown by computer simulations that the proposed method achieves both desirable capacity performance and convergence rate in a 5G multipath division multiple access cellular system. Thus, the proposed method is a feasible downlink power control solution for 5G cellular systems. |
URI: | http://hdl.handle.net/11536/150844 |
期刊: | 2018 IEEE 5G WORLD FORUM (5GWF) |
起始頁: | 497 |
結束頁: | 501 |
顯示於類別: | 會議論文 |