Title :
OFDM with code division multiplexing and transmit antenna diversity for mobile communications
Author_Institution :
Inst. for Commun. & Navigation, German Aerosp. Res. Establ., Oberpfaffenhofen, Germany
Abstract :
We investigate the potential of code division multiplexing (CDM) and transmit antenna diversity in coded orthogonal frequency division multiplexing (OFDM) systems. The CDM component applied to OFDM systems can additionally exploit diversity in frequency and time selective mobile radio channels. For coded OFDM and OFDM-CDM systems we propose an antenna concept based on transmit diversity achieved by shifting the phase of the signal on the individual antennas. We show the design of such an antenna diversity concept and present the performance improvements due to CDM and transmit antenna diversity in coded OFDM systems for typical indoor and outdoor multipath channels
Keywords :
OFDM modulation; broadband networks; diversity reception; fading channels; indoor radio; land mobile radio; modulation coding; transmitting antennas; DAB; DVB-T; OFDM; OFDM-CDM systems; code division multiplexing; coded OFDM; coded orthogonal frequency division multiplexing; digital audio broadcasting; fading channels; frequency selective mobile radio channels; indoor multipath channels; mobile communications; outdoor multipath channels; performance; terrestrial digital video broadcasting; time selective mobile radio channels; transmit antenna diversity; wireless broadband communications; Broadband antennas; Code division multiplexing; Digital video broadcasting; Error correction; Frequency diversity; Mobile antennas; Mobile communication; OFDM; Receiving antennas; Transmitting antennas;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881533
