A simple STF-OFDM transmission scheme for fast fading channels

Author

Park, Sang-Soon ; Kim, Han-Kyoung ; Baik, Heung-Ki

Author_Institution

Dept. of Electron. Eng., Chonbuk Nat. Univ., Jeonju, South Korea

Volume

7

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

5068

Abstract

In this paper, we propose a STF (space-time-frequency) coded OFDM (orthogonal frequency division multiplexing) transmission scheme for fast fading channels. We propose a simple STF-OFDM transmission scheme with time diversity gain. This STF-OFDM transmission scheme is a simple method for improving performance of conventional SF-OFDM by means of the Hadamard transformation in the time domain. Also our STF-OFDM can be encoded and decoded with low complexity, because the Hadamard transformation can be performed without multiplication.

Keywords

Hadamard transforms; OFDM modulation; channel coding; decoding; diversity reception; fading channels; space-time codes; Hadamard transformation; STF-OFDM transmission; coded OFDM; decoding; fast fading channels; orthogonal frequency division multiplexing; performance; space-time-frequency scheme; time diversity gain; Block codes; Decoding; Diversity methods; Equations; Error correction; Error correction codes; Fading; Frequency division multiplexing; OFDM; Symmetric matrices;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1405064

Filename

1405064