The Subchannel Inversion for Power Allocation in Multicarrier OFDM Systems

Author

Cheng, Chia-Hsin ; Huang, Yung-Fa ; Cheng, Yung-Pei

Author_Institution

Dept. of Electr. Eng., Nat. Formosa Univ., Yunlin, Taiwan

fYear

2011

fDate

21-23 Nov. 2011

Firstpage

237

Lastpage

240

Abstract

The problem of power loading that have been research in Orthogonal Frequency Division Multiplexing (OFDM) Systems. In this paper, we propose the proportion of power allocation method of sub carriers selection in a multiplex sub carrier power restrictive environment for Orthogonal Frequency Division Multiplexing (OFDM) systems. A sub channel inversion for allocation of transmission power is proposed to reduce the bit error rate and increase system efficiency. From the simulation, our proposed sub carriers power allocation scheme can achieve better performance in bit error rate (BER).

Keywords

OFDM modulation; error statistics; BER; bit error rate; multicarrier OFDM systems; multiplex subcarrier power restrictive environment; orthogonal frequency division multiplexing systems; power allocation method; subchannel inversion; Bit error rate; Channel estimation; Fading; OFDM; Resource management; Signal to noise ratio; Wireless communication; Orthogonal Frequency Division Multiplexing (OFDM); channel state information (CSI); feedback; power allocation; subcarrie;

fLanguage

English

Publisher

ieee

Conference_Titel

Robot, Vision and Signal Processing (RVSP), 2011 First International Conference on

Conference_Location

Kaohsiung

Print_ISBN

978-1-4577-1881-6

Type

conf

DOI

10.1109/RVSP.2011.42

Filename

6114946