Resource Management Techniques for OFDM Systems with the Presence of Inter-Carrier Interference

被引：14

作者：

Wen, Jyh-Horng ^{[2
]}

Chiang, Chung-Hua ^{[3
]}

Hsu, Tuan-Jung ^{[3
,4
]}

Hung, Ho-Lung ^{[1
]}

机构：

[1] Chien Kuo Technol Univ, Dept Elect Engn, Changhua, Taiwan

[2] Tunghai Univ, Dept Elect Engn, Taichung 40704, Taiwan

[3] Natl Chung Cheng Univ, Dept Elect Engn, Chiayi, Taiwan

[4] Natl Tsing Hua Univ, Dept Commun Engn, Hsinchu, Taiwan

来源：

WIRELESS PERSONAL COMMUNICATIONS | 2012年 / 65卷 / 03期

关键词：

Orthogonal frequency division multiplexing; Inter-carrier interference; Doppler spread; Carrier frequency offset; Water-filling; TRANSMIT POWER ADAPTATION; MULTIUSER OFDM; FREQUENCY; EQUALIZATION; CANCELLATION; ALLOCATION; MODULATION;

D O I：

10.1007/s11277-011-0270-2

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

The aim of the paper is to study the problems of resource management in the presence of inter-carrier interference (ICI) and multipath fading channel for orthogonal frequency division multiplexing (OFDM) systems. OFDM is a promising technique for the broadband wireless communication systems. However, the OFDM communication system is sensitive to ICI which arises because of Doppler spread and carrier frequency offset (CFO). To solve these problems, an optimization method has been exploited, and a computationally efficient method using numerical optimization techniques is proposed. The simulation results show that these derived optimal solutions and proposed suboptimal algorithms as compared with the uniform power allocation algorithm or conventional water-filling algorithm can significantly improve the performance of the OFDM systems.

引用

页码：515 / 535

页数：21

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