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

页码：1754 / 1756

页数：3