Adaptive spectrally precoded OFDM with cyclic prefix

Author

Chen, Hao-Ming ; Chung, Char-Dir

Author_Institution

Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2010

fDate

14-15 May 2010

Firstpage

1

Lastpage

5

Abstract

Adaptive spectrally precoded orthogonal frequency-division multiplexing (ASP-OFDM) is a recently proposed adaptive modulation scheme to significantly improve the system throughput in adaptive OFDM applications. In this paper, new spectral precoder is proposed for ASP-OFDM with cyclic prefix (ASP-CP-OFDM) on the flat fading channel. By jointly adapting the precoding order for spectral precoder and the component modulation, the proposed ASP-CP-OFDM is shown to outperform adaptive nonprecoded OFDM and previously designed ASPCP-OFDM significantly in average spectral efficiency.

Keywords

OFDM modulation; adaptive modulation; fading channels; precoding; ASPCP-OFDM; adaptive modulation scheme; adaptive spectrally precoded OFDM; average spectral efficiency; cyclic prefix; flat fading channel; orthogonal frequency-division multiplexing; Adaptive systems; Bit error rate; Discrete Fourier transforms; Fading; Frequency division multiplexing; Frequency modulation; OFDM modulation; Power engineering and energy; Power system modeling; Throughput; Adaptive modulation; average spectral efficiency; cyclic prefix; orthogonal frequency-division multiplexing; spectral precoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Optical Communications Conference (WOCC), 2010 19th Annual

Conference_Location

Shanghai

Print_ISBN

978-1-4244-7597-1

Type

conf

DOI

10.1109/WOCC.2010.5510607

Filename

5510607