An efficient rate and power allocation algorithm for multiuser OFDM systems

被引：2
|
作者：
Wang, L [1 ]
Niu, ZS [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Microwave & Digital Commun, Beijing 100084, Peoples R China
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2005年 / E88B卷 / 12期
关键词：
OFDM; multiaccess communication; adaptive resource allocation;
D O I：
10.1093/ietcom/e88-b.12.4686
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we propose an efficient rate and power allocation scheme for multiuser OFDM systems to minimize the total transmit power under the given QoS requirements. We deduce the optimal solution of transmit power minimization problem and develop a suboptimal algorithm with low complexity based on the theoretical analysis. Because of the avoidance of iterative procedure, it is less complex than the existing schemes. The simulation results show that our proposal outperforms the existing schemes and it is very close to the optimal solution.
引用
收藏
页码：4686 / 4689
页数：4
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