Title :
Space-frequency block coding in OFDM systems
Author :
Dehghani, M.J. ; Aravind, R. ; Jam, S. ; Prabhu, K.M.M.
Author_Institution :
Dept. of Electr. Eng., Shiraz Univ. of Technol., Iran
Abstract :
An effective technique to improve wireless communication performance is transmit diversity. In this work, transmitter diversity using a new combination of space-time block codes (STBCs) concatenated with orthogonal frequency division multiplexing (OFDM) system in high-speed wireless data communication is investigated. Simulation results demonstrate that this scheme can achieve a significant performance increase for efficient data transmission over slow and fast fading environments, compared to conventional OFDM. Performance of proposed scheme has been compared to an STBC-OFDM scheme and it is evident that SFBC is more robust than STBC-OFDM system in a fast fading environment.
Keywords :
OFDM modulation; block codes; data communication; diversity reception; fading channels; radio transmitters; space-time codes; OFDM systems; data transmission; high-speed wireless data communication; orthogonal frequency division multiplexing; space-frequency block coding; space-time block codes; transmitter diversity; wireless communication performance; Block codes; Data communication; Delay; Diversity reception; Fading; OFDM; Receiving antennas; Robustness; Transmitting antennas; Wireless communication;
Conference_Titel :
TENCON 2004. 2004 IEEE Region 10 Conference
Print_ISBN :
0-7803-8560-8
DOI :
10.1109/TENCON.2004.1414477
