Title :
Performance of multi-carrier CDM and COFDM in fading channels
Author_Institution :
Inst. for Commun. Technol., German Aerosp. Res. Establ., Oberpfaffenhofen, Germany
fDate :
6/21/1905 12:00:00 AM
Abstract :
Coded orthogonal frequency division multiplexing (COFDM) is a powerful technique for high rate data transmission over fading channels. COFDM has been chosen for the audio and video broadcasting standards in Europe. In this paper, multi-carrier code division multiplexing (MC-CDM) is presented and investigated as alternative to COFDM for high rate data transmission. With MC-CDM an additional diversity gain can be obtained by spreading each data symbol in frequency/time. By using efficient interference cancellation or joint detection techniques, it can be shown that MC-CDM outperforms COFDM with respect to bit error rate (BER) performance and bandwidth efficiency
Keywords :
OFDM modulation; data communication; digital audio broadcasting; digital video broadcasting; diversity reception; error statistics; fading channels; interference suppression; radiofrequency interference; signal detection; television standards; BER performance; COFDM; DAB; DVB-T; Europe; MC-CDM; audio broadcasting standard; bandwidth efficiency; bit error rate; coded orthogonal frequency division multiplexing; data symbol spreading; diversity gain; fading channels; frequency/time spreading; high rate data transmission; interference cancellation; joint detection techniques; multi-carrier CDM; multi-carrier code division multiplexing; video broadcasting standard; Bit error rate; Broadcasting; Code division multiplexing; Data communication; Diversity methods; Europe; Fading; Frequency diversity; Multimedia communication; OFDM;
Conference_Titel :
Global Telecommunications Conference, 1999. GLOBECOM '99
Conference_Location :
Rio de Janeireo
Print_ISBN :
0-7803-5796-5
DOI :
10.1109/GLOCOM.1999.830194
