Title :
Space-time-frequency COFDM with power allocation for broadband wireless communications
Author :
Torabi, Mohammad ; Soleymani, M. Reza
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
A scheme consisting of a combination of orthogonal transmit diversity (OTD) and OFDM with power allocation is presented. The proposed scheme is a new approach to space-time-frequency coded OFDM (COFDM) that combines OFDM with orthogonal transmit diversity, power control and turbo codes so that the diversity in frequency, time and space is exploited to provide high quality of transmission for wireless communications over frequency selective fading channels with enhanced performance in terms of spectral and power efficiency.
Keywords :
OFDM modulation; block codes; broadband networks; channel capacity; diversity reception; fading channels; multipath channels; power control; space-time codes; telecommunication control; turbo codes; broadband wireless communications; channel capacity; fading channels; frequency selective channels; multipath channels; orthogonal transmit diversity; power allocation; power efficiency; space-time block codes; space-time-frequency COFDM; space-time-frequency coded OFDM; spectral efficiency; turbo codes; Broadband communication; Fading; Frequency diversity; OFDM; Power control; Product codes; System performance; Transmitting antennas; Turbo codes; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040334
