Frequency-time domain transmit power adaptation for OFDM systems in multiuser environment

被引：8
|
作者：
Jang, JH
Lee, KB
Lee, YH
机构：
[1] School of Electrical Engineering, Seoul National University
来源：
ELECTRONICS LETTERS | 2002年 / 38卷 / 25期
关键词：
716.1 Information Theory and Signal Processing - 716.3 Radio Systems and Equipment - 723.1 Computer Programming - 921.3 Mathematical Transformations - 921.6 Numerical Methods;
D O I：
10.1049/el:20021123
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：
The optimal transmit power adaptation method to maximise the channel capacity of an OFDM system in a multiuser environment is developed, and is found to be water-filling in the frequency-time domain over the best subcarriers among those of multiple users at each time. The results show that the frequency-time domain power adaptation yields greater capacity than the power adaptation in the frequency domain only.
引用
收藏
页码：1754 / 1756
页数：3
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