Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1405064
