Title :
A simple STF-OFDM transmission scheme with maximum frequency diversity gain
Author :
Park, Sang-Soon ; Kim, Han-Kyong ; 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 as an attractive solution for high bit rate data transmission in a multipath fading environment. The STF-OFDM transmission scheme that we propose in this paper is a simple method with low complexity for improving the performance of conventional ST-OFDM. Using orthogonal precoding in frequency domain, we obtain frequency diversity gain and improve the SER performance. The orthogonal precoding proposed in this paper is a very simple scheme that can be encoded and decoded with low complexity.
Keywords :
OFDM modulation; channel coding; data communication; diversity reception; fading channels; multipath channels; space-time codes; decoding; encoding; frequency diversity gain; frequency domain; high bit rate data transmission; multipath fading environment; orthogonal frequency division multiplexing; orthogonal precoding; space-time-frequency coded OFDM transmission; Bit rate; Block codes; Data communication; Data engineering; Decoding; Fading; Frequency diversity; Frequency domain analysis; OFDM; Performance gain;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328950
