Title :
A study on data spreading OFDM combined with space-time block codes
Author :
Minehara, M. ; Fujii, Masahiro ; Itami, Makoto ; Itoh, Kohji
Author_Institution :
Dept. of Appl. Electron., Tokyo Univ. of Sci., Chiba, Japan
Abstract :
A data spreading OFDM scheme is an effective scheme to improve characteristics under multi-path fading. However, the performance of the data spreading scheme under Rayleigh fading channels is not always good. To improve this problem, transmission diversity is an effective scheme and it is possible to improve performance further by combining a coding scheme. In this work, data spreading OFDM combined with STBC (space-time block codes) is proposed. As the result of simulation shows, good improvement of performance under severe Rayleigh fading environments was confirmed.
Keywords :
OFDM modulation; Rayleigh channels; block codes; diversity reception; multipath channels; space-time codes; Rayleigh fading channels; STBC; data spreading OFDM; multipath fading; space-time block codes; transmission diversity; Block codes; Computational modeling; Computer simulation; Decoding; Degradation; Fading; OFDM modulation; Proposals; Rayleigh channels; Signal to noise ratio;
Conference_Titel :
Consumer Electronics, 2005. ICCE. 2005 Digest of Technical Papers. International Conference on
Print_ISBN :
0-7803-8838-0
DOI :
10.1109/ICCE.2005.1429844
